基于CFD除霜风道结构分析及优化设计
董小杏
(成都师范学院 物理与工程技术学院,四川 成都 611130)
摘要:采用了CFD方法,并进行网格划分、边界条件的设置。进行了除霜风道出口风量比例分析、除霜风道内壁表面压强分布情况分析、风道内部流场速度流线分析以及风道内部速度矢量图分析。从除霜风道风量分配来看,侧后视镜两出口流量占风道总风量的24.38%,风量合理。从除霜风道速度矢量图可以看出,出风口2、出风口3出口平面风量分配不均,影响前挡玻璃的除霜效果。建议在除霜风管内部增加导流板长度,使得出口平面的风量分布均匀。
关键词:除霜风道;CFD方法;风量比例;压强分布
中图分类号:TH122;U270.2 文献标志码:A doi:10.3969/j.issn.1006-0316.2018.12.008
文章编号:1006-0316 (2018) 12-0026-04
Analysis and Optimization Design of Defrosting Duct Structure Based on CFD 
DONG Xiaoxing
( College of Physics and Engineering, Chengdu Normal University, Chengdu 611130, China )
Abstract:This paper adopts CFD methods and meshing, boundary conditions are set. By defrosting duct export volume ratio analysis, defrosting duct wall surface pressure distribution, the flow field inside the air duct speed streamline analysis, internal air duct velocity vector diagram analysis, the following conclusions can be drawn. From the point of defrosting duct airflow distribution, side rearview mirror two outlet flow accounted for 24.38% of the total air volume air duct, air volume is reasonable. As can be seen from the defrosting duct velocity vector diagram, outlet2 and outlet3 export flat are uneven distribution of air volume, it affects the front glass defrosting effect. It is suggested to increase the length of the guide plate within the defrosting duct, to make uniform air flow distribution in the plane of the export.
Key words:defrostingduct;CFD methods;air volume ratio;pressure distribution
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收稿日期:2018-06-04
作者简介:董小杏(1986-),女,四川成都人,硕士,讲师,主要研究方向为液压技术。
 

 

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