ANALYSIS OF COLD FLOW IN INTERNAL COMBUSTION ENGINES BY USING DYNAMIC MESH AND CHANGING TOPOLOGY

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GHOMI S.; TALEBI F.; ESMAILI S.

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Paper Information

Journal: Modeling in Engineering Year:2011 | Volume:9 | Issue:25 Page(s): 57-66

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Title

ANALYSIS OF COLD FLOW IN INTERNAL COMBUSTION ENGINES BY USING DYNAMIC MESH AND CHANGING TOPOLOGY

Author(s)

GHOMI S. | TALEBI F. | ESMAILI S. | Issue Writer Certificate

Keywords

NUMERICAL METHODQ2

COLD FLOWQ3

INTERNAL COMBUSTION ENGINESQ3

DYNAMIC MESHQ3

CHANGING TOPOLOGYQ3

Abstract

In this article, turbulent flow in a cycle of internal combustion engine has been analyzed by OpenFOAM software. The cycle consists of suction, compression, expansion and exhaust. A two dimensional geometry has been used and moving boundaries in valves and piston have been simulated by using DYNAMIC MESH.Three types of CHANGING TOPOLOGY have been used which consist of add or removal layers of cells for simulation of moving piston, sliding mesh for simulation of valves and attach or detach boundaries for simulation of intake and exhaust ports. The k- estandard model has been used for turbulent flow and the problem has been solved for two rotational speeds 1500 and 3000 rpm, respectively. The contours of pressure and vector plots of velocity are presented. Asymmetry of flow in exhaust port at the end of the cycle is evident. Also swirl increases due to increasing of rotational speed. Using DYNAMIC MESH has caused achieving of flow’s details. So, numerical simulation could replace difficult experimental methods.

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APA: Copy

GHOMI, S., TALEBI, F., & ESMAILI, S.. (2011). ANALYSIS OF COLD FLOW IN INTERNAL COMBUSTION ENGINES BY USING DYNAMIC MESH AND CHANGING TOPOLOGY. JOURNAL OF MODELING IN ENGINEERING, 9(25), 57-66. SID. https://sid.ir/paper/173809/en

Vancouver: Copy

GHOMI S., TALEBI F., ESMAILI S.. ANALYSIS OF COLD FLOW IN INTERNAL COMBUSTION ENGINES BY USING DYNAMIC MESH AND CHANGING TOPOLOGY. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2011;9(25):57-66. Available from: https://sid.ir/paper/173809/en

IEEE: Copy

S. GHOMI, F. TALEBI, and S. ESMAILI, “ANALYSIS OF COLD FLOW IN INTERNAL COMBUSTION ENGINES BY USING DYNAMIC MESH AND CHANGING TOPOLOGY,” JOURNAL OF MODELING IN ENGINEERING, vol. 9, no. 25, pp. 57–66, 2011, [Online]. Available: https://sid.ir/paper/173809/en

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