Open Access

ARTICLE

CFD Analysis and Optimization of a Diesel Engine Cooling Water Jacket

Shunshun Qin¹, Chengfen Xie¹, Song Li¹, Qi Yang¹, Jianwei Chen², Ke Sun^2,*

1 State Key Laboratory of Engine Reliability, Weichai Power Co., Ltd., Weifang, 261061, China
2 School of Energy and Power Engineering, Shandong University, Jinan, 250061, China

* Corresponding Author: Ke Sun. Email:

(This article belongs to the Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences)

Fluid Dynamics & Materials Processing 2022, 18(3), 647-659. https://doi.org/10.32604/fdmp.2022.017519

Received 09 May 2021; Accepted 16 August 2021; Issue published 22 February 2022

Abstract

The STAR-CCM + software is used to investigate the flow inside a cooling water jacket of an in-line six-cylinder diesel engine. The results show that the average flow velocity of the cooling water inside the jacket is 1.669 m/s while the flow velocity distribution is not uniform for each cylinder. Moreover, the fluid velocity in proximity to the cylinder head is too low, thereby affecting the cooling performances of the water jacket. Two corresponding structural optimization schemes are proposed to mitigate this issue and the post-optimization performances of the water jacket are discussed in detail.

---

Keywords

---