ICIST 2019 Conference

The selectiion of turbulence models for numerical simulation of a motorcycle engine block heat transfer calculation
Nazaruddin Sinaga

Mechanical Engineering Department of Diponegoro University


The heat transfer on a motorcycle engine block is quite complicated but can be solved computationally. To simulate the calculation, an appropriate turbulence model is required. In this study, the effect of eleven turbulence models was analyzed in the simulation of a motorcycle engine block cooling using finite volume method. The turbulence models tested were Spalart-Allmaras (vorticity-based and strain/vorticity-based), k-e standard, k-e RNG, k-e realizable (all with standard wall functions and enhanced wall treatments), k-omega standards, transition k-kl-omega, and transition SST. The engine block was considered as a cylindrical finned tube with a specified size. In this work, several essential parameters were observed, such as the heat transfer coefficient, wake area, horseshoe vortex, and pressure drop. The calculation results were analyzed and compared with the results of previous studies. Based on the heat transfer coefficient results, it was found that all turbulence models agreed well with the experimental results, but there were significant differences in the pressure loss calculation. Based on the accuracy and computational cost, it can be concluded that the Spalart-Allmaras and the transition SST are the turbulence models which give optimum result for calculating the heat transfer in a motorcycle engine block.

Keywords: engine block; heat transfer; numerical method; turbulence model

Topic: Mechanical Engineering

Link: https://ifory.id/abstract-plain/rtbYCgKMQ72f

Web Format | Corresponding Author (Nazaruddin Sinaga)