风冷柴油机高负荷轴流冷却风扇气动优化OA北大核心CSTPCD
Aerodynamic Optimization of a High-Load Axial Cooling Fan for an Air-Cooled Diesel Engine
针对某型风冷柴油机的具有负预旋前置导叶的冷却风扇,考虑导叶和转子的耦合效应,基于多项式代理模型和第二代非支配排序遗传算法实施了冷却风扇多目标气动优化.优化后的效率和全压在近失速工况分别提升 1.19%、4.78%,在设计工况分别提高 0.29%、3.16%.采用 Sobol全局敏感性分析辨识了关键设计变量,结合优化前后流场变化,获得了风扇气动性能提升的流动机理:导叶叶根安装角的减小和转子叶根安装角的增大,共同减小了转子进口攻角,从而增大风扇等熵效…查看全部>>
For a cooling fan with negative prewhirl front stator of an air-cooled diesel engine,by considering the coupling effect of the stator and the rotor,the multi-objective aerodynamic optimization of the cooling fan was implemented based on the polynomial surrogate model and the non-dominated sorting genetic algorithm Ⅱ.The optimized efficiency and total pressure increased by 1.19% and 4.78% respectively under the near-stall condition,and increased by 0.29% and …查看全部>>
任贵峰;王睿;刘正先;李孝检
天津大学 机械工程学院,天津 300350||中国北方发动机研究所,天津 300400天津大学 机械工程学院,天津 300350天津大学 机械工程学院,天津 300350天津大学 机械工程学院,天津 300350
能源与动力
风冷柴油机冷却风扇气动优化全局敏感性分析流动机理
air-cooled diesel enginecooling fanaerodynamic optimizationglobal sensitivity analysisflow mechanism
《内燃机工程》 2024 (5)
11-18,27,9
国家自然科学基金项目(12102298)National Natural Science Foundation of China(12102298)
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