TY - EJOU AU - Qin, Shunshun AU - Xie, Chengfen AU - Li, Song AU - Yang, Qi AU - Chen, Jianwei AU - Sun, Ke TI - CFD Analysis and Optimization of a Diesel Engine Cooling Water Jacket T2 - Fluid Dynamics \& Materials Processing PY - 2022 VL - 18 IS - 3 SN - 1555-2578 AB - 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. KW - Diesel engine; cooling water jacket; CFD DO - 10.32604/fdmp.2022.017519