重庆理工大学学报2024，Vol.38Issue(13)：255-263,9.DOI:10.3969/j.issn.1674-8425(z).2024.07.032
摩托车散热器护罩结构对其进风量的影响分析
Analysis of the impact of motorcycle radiator shield structure on its inlet air volume
摘要
Abstract
To protect the radiator from soil contamination,a radiator shield is needed at the inlet of the radiator.However,the addition of radiator shield exerts a huge impact on the inlet air volume of the radiator.To obtain an optimal design of the radiator shield structure,the CFD analysis method is employed to build a computational domain model for the external flow field of the motorcycle.The impacts of different radiator shield structures on their inlet air volume are analyzed and a suitable radiator shield scheme is selected for vehicle experimental verification.Our results show with an angle of 130° on the guide plate of the radiator shield and a gap of 1 mm between the radiator shield and the core,the inlet air volume of the radiator is 281.7 g/s,which is equivalent to the inlet air volume without a shield.As the gap between the shield and the core body increases the inlet air volume of the radiator,it should be controlled at 1～2.5 mm.The inclination of the hole on radiator shield and the opening of the guide plate are not conducive to increasing the air volume.Our comparative tests show the engine water outlet temperature stays basically the same before and after adding a radiator shield under idle conditions,maximum speed conditions,and maximum torque conditions.Properly reducing the windproof area of the fan cover further increases the inlet air volume of the radiator.After adding a shield to the radiator,no hot air is found between the motorcyclist's thighs.Our research may provide some valuable references for the design and optimization of the radiator cover structures of motorcycles.关键词
摩托车/散热器/护罩/发动机出水温度/进风量Key words
motorcycles/radiator/shield/engine water outlet temperature/inlet air volume分类
交通工程引用本文复制引用
谭礼斌,袁越锦,王栋,唐琳,邹汪轩..摩托车散热器护罩结构对其进风量的影响分析[J].重庆理工大学学报,2024,38(13):255-263,9.基金项目
国家自然科学基金项目(51876109) （51876109）
陕西省国际科技合作计划重点项目(2020KWZ-015) （2020KWZ-015）
陕西省教育厅青年创新团队科研计划项目(22JP012) （22JP012）
