风冷摩托车发动机缸盖热场仿真

Thermal field simulation of air-cooled motorcycle engine cylinder head

在设计全新的风冷摩托车气缸盖时,不仅需要确保新设计的缸盖有足够的散热能力,而且也需要尽可能减少外围散热片的数量以满足发动机轻量化的要求。因此,在发动机数字模型完成时,须准确解析新设计缸盖的温度场,以落实技术优化方案。通过流固耦合方法评价风冷摩托车发动机缸盖温度场分布,可以系统、全面地分析整个气缸盖的冷却性能,快速解析新设计发动机缸盖温度场分布特性。

When designing a new air-cooled motorcycle engine cylinder head,it is important not only to ensure sufficient heat dissipation capacity,but also to reduce the number of peripheral fins as much as possible to meet the requirements of lightweight.Therefore,when the numerical model of the engine is completed,the temperature field of the cylinder head needs to be analyzed and optimized.The temperature field of the cylinder head is evaluated through fluidsolid coupling method,and the cooling performance of the cylinder head is comprehensively and systematically analyzed,so as to help understanding the temperature field distribution characteristics of the newly-designed air-cooled motorcycle engine cylinder head.