Browsing by Author "Sahin, Bayram"

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CFD Analysis and Experimental Investigation to Determine the Flow Characteristics Around NACA 4412 Airfoil Blades at Different Wind Speeds and Blade Angles
(Sage Publications Ltd, 2023) Afshari, Faraz; Khanlari, Ataollah; Sozen, Adnan; Tuncer, Azim Dogus; Ates, Ibrahim; Sahin, Bayram
An aerodynamically efficient blade is one of the prime necessities to extract the maximum mechanical power from a wind turbine. A number of researches are available in the literature studying blade design and configuration to improve aerodynamic characteristics of horizontal axis wind turbines. Less attention, however, has been devoted to wind turbines in terms of simultaneous optimization of blade and airfoil angles. The present study is important for the aerodynamic design and manufacturing of wind turbine blades. In this regard, various blade angles have been numerically simulated to determine the optimum blade angle. In addition to numerical analysis, experimental tests have been done to investigate NACA 4412 blade angle. As a result of this study, it was observed that blade angle in the range of 5 degrees-10 degrees showed the best performance among the tested various blade angles.
Combined Free and Forced Convection of Nanofluids in Minichannels with Different Diameters
(Begell House inc, 2022) Akyurek, Eda Feyza; Ceylan, Murat; Manay, Eyuphan; Sahin, Bayram
In this study, mixed convection heat transfer properties of nanofluids in minichannels were investigated by dispersing SiO2 nanopaticles into pure water. In the study, nanofluids prepared in three different volumetric ratios of 0.25%, 0.75%, and 1.25% were investigated experimentally under laminar conditions in circular horizontal minichannels with diameters of 1.21 mm, 1.5 mm, and 1.9 mm. For the minichannels with the diameters of 1.21 mm, 1.5 mm, and 1.9 mm, increasing the particle volume ratio from 0.25% to 1.25% provided a heat transfer enhancement compared to water by about 11-31%, 7-29%, and 9-27%, respectively. Increasing the minichannel diameter from 1.21 mm to 1.5 mm and from 1.5 mm to 1.9 mm caused an enhancement of the Nusselt number in the range of 6.9-13.9% and 3.3-9.3%, respectively. Summarizing the results, the natural convection/forced convection ratio and natural convection effect on total heat transfer increased at a constant Grashof number value when the volumetric ratio of nanoparticles increased. In contrast to the particle volumetric ratio, an increase in the minichannel diameter was found to reduce the natural convection/forced convection ratio and the natural convection effects on total heat transfer at a constant Grashof number value.
Comparison of the Energy and Economic Performance of a LEED Certified Educational Building Located in a Cold Climate Region with the National Standard
(Gazi Univ, Fac Engineering Architecture, 2025) Celik, Ali; Manay, Eyuphan; Sahin, Bayram
Purpose: The purpose of this study; To ensure the creation of new national standards and regulations in line with international norms and standards, where energy is prioritized, and which includes criteria that will make a positive contribution to the environment without the need for foreign certification. Theory and Methods: With the methods of this study; 1. Finding the primary energy consumption and emission values of the LEED certified reference building, 2. Evaluation of the energy performance of the reference building after use, 3. Conducting energy modeling and determining the energy consumption and emission values for the reference building if it is designed according to national standards, 4. Energy and emission data for both cases are evaluated for the reference building. Results: The additional costs incurred for a LEED certified building, especially those aimed at reducing energy consumption, can finance themselves in a very short time. Therefore, although measures that increase energy efficiency and reduce carbon emissions have additional costs, they provide continuous savings throughout the life of the building. For this reason, it is necessary to evaluate the expenditures on measures to increase energy efficiency not as an economic cost but as an investment with high medium and long-term returns. Conclusion: This work; It also shows that LEED certification assessment tools will not give the same results for different climate zones. For this reason, it is emphasized that countries should determine their green building priorities.
Desalination Performance Evaluation of a Solar Still Enhanced by Thermoelectric Modules
(Pergamon-Elsevier Science Ltd, 2024) Mandev, Emre; Muratcobanoglu, Burak; Manay, Eyuphan; Sahin, Bayram
Water scarcity is a pressing global issue, as a significant portion of the world's water resources remain salty and unsuitable for human consumption. Solar desalination has emerged as a sustainable solution to address this challenge, utilizing solar energy for water decontamination and purification. This study explores the enhancement of solar stills through the integration of thermoelectric (TE) modules, focusing on their impact on desalination performance. The optimal saltwater levels, TE module performance, and the efficiency of the system are identified in this investigation. The results of this study reveal that the integration of TE unit into solar still systems leads to a substantial increase in water production, achieving an impressive 35% improvement in productivity compared to conventional solar stills. The TE modules act as efficient cooling agents, accelerating the condensation process within the system. This improvement has substantial implications for addressing water scarcity in arid regions and providing an eco-friendly solution for freshwater production. By harnessing solar energy and advanced TE technology, the findings of this study underscore the potential of TE-enhanced solar desalination systems in providing sustainable and reliable sources of fresh water, even in areas with limited access to traditional water resources. The successful integration of TE modules into solar stills suggests a promising avenue for future research and development. Further exploration of these systems, optimization of TE module parameters, and increased utilization of renewable energy sources are all steps that can be taken to improve water production efficiency and contribute to water resource sustainability.
The Effect of Microchannel Height on Performance of Nanofluids
(Pergamon-Elsevier Science Ltd, 2016) Manay, Eyuphan; Sahin, Bayram
In this study, the effects of microchannel height and particle volume fraction of nanofluids on heat transfer and pressure drop characteristics are investigated experimentally. Nano sized TiO2 particles with an average diameter of 25 nm have been dispersed into the deionized water in five different particle volume fractions of 0.25%, 0.5%, 1.0%, 1.5% and 2.0%. The forced convective heat transfer experiments of nanofluids have been conducted in a microchannel, which has four different heights of 200, 300, 400 and 500 gm. A constant heat flux of 80 kW/m(2) has been applied to the bottom wall of the microchannel, and the experiments have been carried out under steady state and laminar flow conditions. The results have been presented with respect to convection heat transfer coefficient and pressure drop. An increase in the microchannel height decreased the heat transfer rate and enhanced the pressure drop. It is concluded that nano sized TiO2 particles in the base fluid have provided higher heat transfer and have not caused an excessive increase in pressure drop with respect to pure water. Convection heat transfer coefficient has also increased with an increase in the volume fraction. (C) 2015 Elsevier Ltd. All rights reserved.
The Effect of Ultrasound Manipulation on Boiling Performance During Immersion Cooling
(Springer, 2025) Ozer, Rahim Aytug; Sahin, Bayram; Ates, Ibrahim
In eliminating the heating problem during operation in electronics, immersion cooling is an efficient thermal management method. This study investigates the influence of ultrasound on boiling heat transfer in immersion cooling using PF-5060 dielectric fluid. Flat and vertically oriented heaters were tested with and without ultrasound. The experiments were carried out for 5 cases and 3 protrusion amounts: embedded, 2 mm protruding, and 4 mm protruding, depending on the location of the heated surfaces on the Teflon plate. Ultrasound was applied with a frequency range of 9.2-24 kHz with the help of a probe immersed in the liquid. The results show that the superheat temperature is affected by the position of the active heat source relative to the liquid-free surface and each other. Increasing the amount of protrusion also increased the superheat temperature. However, in the boiling regime, ultrasound had a negligible effect on the heat transfer coefficient (HTC). This is related to the fact that even without ultrasound excitation, thermal bubbles formed during boiling create micro-convection, which enhances the mixing effect through unstable fluid movements. At the bottom heat source, with a 56 mm distance between the heaters, the maximum heat transfer coefficient was found to be 31.023 kWm-2. In this study, ultrasound was applied perpendicular to the fluid flow direction and in the opposite direction of the buoyant forces. Therefore, one of the most important results of this study is that the force direction created in the flow field by ultrasound affected the HTC. In addition, a high-speed camera was used in this study, clearly showing the changes that occurred in the fluid regime.
Entropy Generation of Nanofluid Flow in a Microchannel Heat Sink
(Elsevier, 2018) Manay, Eyuphan; Akyurek, Eda Feyza; Sahin, Bayram
Present study aims to investigate the effects of the presence of nano sized TiO2 particles in the base fluid on entropy generation rate in a microchannel heat sink. Pure water was chosen as base fluid, and TiO2 particles were suspended into the pure water in five different particle volume fractions of 0.25%, 0.5%, 1.0%, 1.5% and 2.0%. Under laminar, steady state flow and constant heat flux boundary conditions, thermal, frictional, total entropy generation rates and entropy generation number ratios of nanofluids were experimentally analyzed in microchannel flow for different channel heights of 200 mm, 300 mm, 400 mm and 500 mm. It was observed that frictional and total entropy generation rates increased as thermal entropy generation rate were decreasing with an increase in particle volume fraction. In microchannel flows, thermal entropy generation could be neglected due to its too low rate smaller than 1.10e-07 in total entropy generation. Higher channel heights caused higher thermal entropy generation rates, and increasing channel height yielded an increase from 30% to 52% in thermal entropy generation. When channel height decreased, an increase of 66%-98% in frictional entropy generation was obtained. Adding TiO2 nanoparticles into the base fluid caused thermal entropy generation to decrease about 1.8%-32.4%, frictional entropy generation to increase about 3.3%-21.6%. (C) 2018 The Authors. Published by Elsevier B.V.
Experimental Analysis for Heat Transfer of Nanofluid with Wire Coil Turbulators in a Concentric Tube Heat Exchanger
(Elsevier Science Bv, 2018) Akyurek, Eda Feyza; Gelis, Kadir; Sahin, Bayram; Manay, Eyuphan
Nanofluids are a novel class of heat transfer suspensions of metallic or nonmetallic nanopowders with a size of less than 100 nm in base fluids and they can increase heat transfer potential of the base fluids in various applications. In the last decade, nanofluids have become an intensive research topic because of their improved thermal properties and possible heat transfer applications. For comparison, an experiment using water as the working fluid in the heat exchanger without wire coils was also performed. Turbulent forced convection heat transfer and pressure drop characteristics of Al2O3-water nanofluids in a concentric tube heat exchanger with and without wire coil turbulators were experimentally investigated in this research. Experiments effected particle volume concentrations of 0.4-0.8 to 1.2-1.6 vol% in the Reynolds number range from 4000 to 20,000. Two turbulators with the pitches of 25 mm and 39 mm were used. The average Nusselt number increased with increasing the Reynolds number and particle concentrations. Moreover, the pressure drop of the Al2O3-water nanofluid showed nearly equal to that of pure water at the same Reynolds number range. As a result, nanofluids with lower particle concentrations did not show an important influence on pressure drop change. Nonetheless, when the wire coils used in the heat exchanger, it increased pressure drop as well as the heat transfer coefficient. (C) 2018 The Authors. Published by Elsevier B.V.
Experimental and Numerical Study on Air-to Thermoelectric Cooling System Using Novel Surface-Modified Fe3O4 Nanoparticles
(Springer Heidelberg, 2023) Afshari, Faraz; Mandev, Emre; Rahimpour, Shabnam; Muratcobanoglu, Burak; Sahin, Bayram; Manay, Eyuphan; Teimuri-Mofrad, Reza
Peltier cooling systems are usually smaller, more portable, and relatively simpler to operate compared to conventional vapor compression cooling systems. For this reason, Peltier cooling systems are widely recommended for use in the field of cooling applications and refrigerators. These cooling systems have relatively low efficiency despite extensive operation. To solve this problem, a Peltier cooling system operated with advanced nanofluid is proposed in this study. In this cooling system, water-based Fe3O4 nanofluids were used to cool the Peltier. In order to obtain high stability in these nanofluids, the nanoparticles were synthesized chemically with surface modification processes (Fe3O4@SiO2@(CH2)(3)IM). By designing and manufacturing an air-to-nanofluid cooling system, the performance of Peltier cooling system was evaluated and compared to the conventional air-to-water system. The nanofluids were prepared in three different volume concentrations as 0.2%, 0.5% and 1.0% and then were examined at different working conditions. This research has been analyzed using both experimental and numerical methods. Temperature measurements and experimental COP evaluations were made in the cooling chamber. The flow structure and temperature distribution in spiral heat exchanger were closely surveyed and discussed in detail. According to the results obtained, nanofluid volumetric concentrations, inlet temperatures and mass flow rates had a significant effect on the cooling performance of the Peltier systems. It was observed that COP values decreased over time in all experiments and approach zero gradually.
Experimental Investigation of Heat Transfer and Pressure Drop Characteristics of Al2O3-Water Nanofluid
(Elsevier Science Inc, 2013) Sahin, Bayram; Gultekin, Gul Gedik; Manay, Eyuphan; Karagoz, Sendogan
In this study, the steady state turbulent convective heat transfer and pressure drop characteristics of Al2O3-water nanofluid inside a circular tube were investigated experimentally. The effects of the volume fraction and Reynolds number were determined under constant heat flux. The results of the heat transfer and pressure drop characteristics with respect to appropriate variables were presented. It was observed that the heat transfer increased with the increase of Reynolds number. The heat transfer increased with an increase in the volume concentration With the exception of the particle volume concentrations of 2 and 4 vol.%. The highest heat transfer enhancement was achieved at Re = 8000 and Phi = 0.005. (c) 2013 Elsevier Inc. All rights reserved.
Experimental Investigation on Using Building Shower Drain Water as a Heat Source for Heat Pump Systems
(Taylor & Francis Inc, 2024) Khanlari, Ataollah; Sozen, Adnan; Sahin, Bayram; Di Nicola, Giovanni; Afshari, Faraz
Heat pumps are high-efficiency heat transfer devices with different usages, which can work by using various energy sources. This helpful device can be mixed with multiple technologies to make more efficient systems. In this study, a combination of heat pump and shower drain water is proposed to utilize wastewater deriving from the high-rise building's bathroom. This heat pump system uses waste heat of bathroom-drained water, which is a cheap energy source compared to fossil fuel in Turkey. The mentioned heat pump system can also use wastewater from sauna, public bath, building bath, etc. to be effectively applied not only for water heating but also for space heating. In this work, it is proposed to utilize wastewater as heat source for heat pump system. In this regard a heat recovery system has been designed and combined with a heat pump system to utilize the available energy in the drained shower water. Accordingly, a wastewater gathering tank has been designed and manufactured to reuse the waste heat of the drain water. In addition, a conventional boiler has been used in the designed system to meet intended heat demand. Then the performance of the heat pump was analyzed in different wastewater temperatures. As a result, COP approximately improved by 55% when the drain water temperature increased from 15 degrees C to 33 degrees C. The obtained experimental results in this study showed that shower drain water thermal energy can be used successfully as a heat source for heat pump systems.
Experimental Optimization and Investigation of Compressor Cooling Fan in an Air-To Heat Pump
(Begell House Inc, 2020) Afshari, Faraz; Sahin, Bayram; Khanlari, Ataollah; Manay, Eyuphan
Heat pumps are seen as a highly efficient promising technology for space heating and cooling. Their efficiency has been widely studied for different types of heat pumps operating with various energy sources including air, ground, and water. However, different components of the heat pump need to be closely investigated to improve the performance of the system. This study surveys the effects of compressor cooling fan, to evaluate how a heat pump system behaves at different fan speeds. Refrigerant R134a has been used as a circulating fluid in the system. The results obtained from detailed experiments are analyzed to optimize the performance of the entire system using a compressor cooling fan, considering COP, P-h diagrams, efficiency, and thermodynamic properties. It is concluded that cooling the compressor has a remarkable effect on the thermodynamic state of refrigerant which leads to a positive influence not only on the compressor efficiency but also on the entire heat pump unit.
Experimental Research of Dynamic Instabilities in the Presence of Coiled Wire Inserts on Two-Phase Flow
(Hindawi Ltd, 2013) Omeroglu, Gokhan; Comakli, Omer; Karagoz, Sendogan; Sahin, Bayram
The aim of this study is to experimentally investigate the effect of the coiled wire insertions on dynamic instabilities and to compare the results with the smooth tube for forced convection boiling. The experiments were conducted in a circular tube, and water was used as the working fluid. Two different pitch ratios (H/D = 2.77 and 5.55) of coiled wire with circular cross-sections were utilised. The constant heat flux boundary condition was applied to the outer side of the test tube, and the constant exit restriction was used at the tube outlet. The mass flow rate changed from 110 to 20 g/s in order to obtain a detailed idea about the density wave and pressure drop oscillations, and the range of the inlet temperature was 15-35 degrees C. The changes in pressure drop, inlet temperature, amplitude, and the period with mass flow rate are presented. For each configuration, it is seen that density wave and pressure drop oscillations occur at all inlet temperatures. Analyses show that the decrease in the mass flow rate and inlet temperature causes the amplitude and the period of the density wave and the pressure drop oscillations to decrease separately.
An Experimental Study on Heat Transfer and Pressure Drop of CuO-Water Nanofluid
(Hindawi Ltd, 2015) Sahin, Bayram; Manay, Eyuphan; Akyurek, Eda Feyza
Heat transfer and pressure drop characteristics of water based CuO nanofluid inside a horizontal tube were investigated experimentally. The upper limitation of the particle volume fraction with respect to heat transfer performance was also found. CuO-water nanofluids with volume fractions of 0.5%, 1%, 2%, and 4% were prepared by dispersing the CuO nanoparticles with an average diameter of 33 nm into deionised water. Experiments were carried out under the steady-state, constant heat flux, and turbulent flow regime conditions. The variations of the average Nusselt number and the friction factor with the Reynolds number were presented. For all given particle volume concentrations, heat transfer enhancements were calculated. It was concluded that the particle volume concentrations higher than 1% vol. were not appropriate with respect to the heat transfer performance of the CuO-water nanofluid. No heat transfer enhancement was observed at Re - 4.000. The highest heat transfer enhancement was achieved at Re = 16.000 and phi = 0.005.
Exploring Solar Modified Glazed Balconies as Energy Sources for Mini-Split Heat Pumps to Enhance Thermal Performance
(Pergamon-Elsevier Science Ltd, 2025) Afshari, Faraz; Mandev, Emre; Ceviz, Mehmet Akif; Muratcobanoglu, Burak; Sahin, Bayram; Celik, Ali; Dehghanpour, Heydar
This study investigates the energy savings and thermal efficiency of glazed balconies with integrated heat pump systems for residential heating in cold climates. Furthermore, this study explores the integration of solar-absorbing materials on walls and floors of the balcony to enhance solar heat gain, along with the thermal benefits of a mini-split heat pump during test days. These enhancements are designed to improve energy efficiency, indoor comfort, and temperature regulation. Within the scope of the study, various evaluations such as thermal efficiency, the heat pump coefficient of performance, and temperature differences are made on different days and under different operating conditions. From the results obtained, it was observed that the thermal efficiency of the modified balcony reached 13.9 % when the mini-split heat pumps were not in operation. The COPHP values of the employed heat pump were assessed under various operational conditions. It was determined that the maximum COPHP value could surpass 3, yet the maximum average COPHP between 7:00 and 17:00 h was approximately 2.73. Consequently, this study proposes the exploration of larger sunspaces within substantial structures such as university faculties, libraries, and offices, presenting additional avenues for research. This underscores the potential for a more efficient utilization of a combination of solar energy and heat pump applications.
Heat Transfer and Pressure Drop of Nanofluids in a Microchannel Heat Sink
(Taylor & Francis Inc, 2017) Manay, Eyuphan; Sahin, Bayram
The aim of this study is to determine the upper limitations of the particle volume fraction for heat transfer performance of TiO2-water nanofluids in microchannels. Nanofluids were prepared by the addition of TiO2 metallic nanoparticles into distilled water chosen as base fluid at five different volumetric ratios (0.25%, 0.5%, 1.0%, 1.5%, and 2.0%). The effects of the Reynolds number (100-750) and particle volume fraction at constant microchannel height (200 mu m) on heat transfer and pressure drop characteristics were analyzed experimentally. Adding metallic oxide particles with nano dimensions into the base fluid did not cause excessive increase of friction coefficient but provided higher heat transfer than that of pure water. It was also observed that water-TiO2 nanofluid increased heat transfer up to 2.0 vol%, but heat transfer decreased after 2.0 vol%. Furthermore, the thermal resistance was calculated and it was seen that adding nanoparticles with an average diameter smaller than 25 nm into the base fluid caused the thermal resistance to decrease.
Long-Term Stability of Novel Surface-Modified Fe3O4 Nanoparticles Used for Preparing Water Based Nanofluids
(Gazi Univ, 2024) Muratcobanoglu, Burak; Mandev, Emre; Sahin, Bayram; Manay, Eyuphan; Rahimpour, Shabnam; Teimuri-Mofrad, Reza; Afshari, Faraz
Nanofluids are produced by suspending different solid nano-size materials (metal and nonmetal) in a base liquid and are often used in energy systems to increase thermal performance and heat transfer rate. The main problem observed in nanofluids used in heat transfer applications is their instability. Researchers have developed and proposed some solutions to obtain stable nanofluids. One of the most important solutions, is the nanoparticles surface modification method. In this work, Fe3O4 nanoparticles were subjected to chemical processes and their surfaces were modified. Three different modified nanoparticles were synthesized, which are Fe3O4@SiO2@Si(CH2)(3)-IM [Cl], Fe3O4@Si(CH2)(3)-IM [Cl], and Fe3O4@SiO2&Si(CH2)(3)-IM [Cl] nanoparticles. The nanofluids were prepared in 0.2% Vol. fraction by using the produced particles in base fluid which was distilled water, and stability of nanofluids were observed for 3 months. Nanofluids were subjected to ultrasonication for 3.5 h to obtain homogeneous nanofluid. Not modified water-based Fe3O4 nanofluid completely collapsed in approximately 1 week. In modified nanofluids, although sedimentation occurred, it was observed that a certain amount of the particles remained suspended even after 3 months. The most important analyses in this study are Scanning Electron Microscope, X-Ray Diffraction, and Transmission Electron Microscope.
Numerical Investigation of Hydraulic and Thermal Performance of a Honeycomb Heat Sink
(Elsevier France-Éditions Scientifiques Médicales Elsevier, 2018) Ozsipahi, Mustafa; Subasi, Abdussamet; Gunes, Hasan; Sahin, Bayram
The thermal and hydraulic performance of a heat sink having aluminum honeycomb fins is numerically investigated by using a finite-volume-based solver. The fin height (H), the distance between the fins in the streamwise direction (S-y) and the Reynolds number (Re) are selected as design parameters while the thermal resistance of the heat sink (R-th) and the pressure drop (Delta P) are regarded as the performance criteria. Each design parameter is examined in three levels and twenty-seven three-dimensional simulations are carried out in total. A computational domain consisting of three parts as the inlet and outlet sections and the test section where the honeycomb heat sink is located is used in the simulations. The CutCell mesh is employed for the test section while hexahedral meshes are used to discretize the inlet and outlet sections. The Reynolds-Averaged Navier-Stokes (BANS) based Realizable k-epsilon turbulence model in combination with the enhanced wall function is employed in the simulations. The effects of each design parameter on the performance criteria are examined in detail.
Numerical Study on Drag Coefficient and Evaluation of the Flow Patterns in Perforated Particles
(Begell House inc, 2021) Afshari, Faraz; Sahin, Bayram; Marchetti, Barbara; Polonara, Fabio; Corvaro, Francesco; Leporini, Mariella; Afshari, Farzad
The flow regime around different shapes and surfaces has been deeply studied with numerical and experimental methods, whereas perforated particles have taken little attention among investigations. In this study, the drag coefficient and flow wake structure of spherical particles with different hole numbers and hole diameters are investigated numerically using computational fluid dynamics (CFD). In addition, the different hole numbers and sizes in the spherical model are analyzed within a wide range of Reynolds numbers. From the analysis performed it was shown that for the case when the hole number is 15 at the Re number equal to 20, the drag coefficient increases by about 0.65%, 3.76%, and 17%, when the dimensionless hole diameter is 0.02, 0.05, and 0.1, respectively. Velocity and pressure contours, streamlines, and drag coefficient histograms are discussed and compared under different flow conditions. The ANSYS Fluent 16 software is used for fluid flow analysis around and through the models mentioned.
On Numerical Methods
(Elsevier Science Bv, 2018) Afshari, Faraz; Zavaragh, Hadi Ghasemi; Sahin, Bayram; Grifoni, Roberta Cocci; Corvaro, Francesco; Marchetti, Barbara; Polonara, Fabio
Computational fluid dynamic methods are applied to survey numerical approximations of partial differential equations. In this area, there is a wide range of numerical methodologies, algorithms, schemes, simulation strategies as well as software programs for solution. In most experimental studies, these complicated numerical methods are used to simulate a problem without enough regard to the communication between the problem, advanced software and the nature of the solution methods. In this study, this scientific gap was considered to discuss most used numerical methodologies, their accuracy and the way numerical methods are used to solve engineering problems. In this research, governing equations and formula of numerical methods are introduced; then a 2-D sample object (cylindrical shape) is simulated in the incompressible flow as an example for simulation in CFD program (ANSYS Fluent 16). (C) 2018 International Association for Mathematics and Computers in Simulation (IMACS). Published by Elsevier B.V. All rights reserved.