摘要
本文采用计算流体力学(CFD)的流固耦合方法对处于设计阶段的单缸风冷汽油机缸头热负荷进行了最高车速工况的校核工作。首先,在CAD软件中进行了缸头冷却系统3D建模,然后在网格软件中对模型进行了必要的求解域网格划分和边界条件定义,最后针对最高车速工况进行了流固耦合热负荷分析,评估了缸头燃烧室、气道和散热片布置的合理性,为缸头开模前设计校验提供了有力的计算依据。
In this paper, the fluid-solid coupling method of CFD is used to check the heat load of the cylinder head in the single stage air-cooled gasoline engine at the design stage. Firstly, the 3D modeling of the cylinder cooling system is carried out in CAD software. Then, the domain is divided into the grid and the boundary condition is defined in the grid software. Finally, the fluid-solid coupling heat is carried out for the maximum vehicle speed Load analysis, and the rationality of the cylinder head combustion chamber, airway and heat sink layout are evaluated, which provides strong calculation basis for the design of cylinder head before opening.
出处
《内燃机与配件》
2017年第2期35-36,共2页
Internal Combustion Engine & Parts
