滑雪服表面粗糙度对跳台滑雪飞行阶段气动特性的影响  

Effects of the Ski Clothes'Surface Roughness on the Aerodynamic Characteristics During Flight in Ski-jumping

作　　者：刘丹 王虹[1] 马勇[1] 韩锐[1] 刘莉[2] 胡紫婷 衣卫京[2] LIU Dan;WAHG Hong;MA Yong;HAN Rui;LIU Li;HU Zi-ting;YI Wei-jing(School of Sports Engineering and Information Technology,Key Laboratory of Sports Engineering of General Administration of Sport of China,Wuhan Sports University,Wuhan 430079,China;Beijing Institute of Fashion Technology School of Fashion,Beijing 100029,China)

机构地区：[1]武汉体育学院体育工程与信息技术学院,国家体育总局体育工程重点实验室,武汉430079 [2]北京服装学院服装艺术与工程学院,北京100029

出　　处：《北京服装学院学报（自然科学版）》2021年第4期9-15,共7页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

基　　金：国家重点研发计划“科技冬奥”重点专项资助(2019YFF0302102、2019YFF0302103);武汉体育学院2021年中青年科研团队(21KT16);武汉体育学院东湖学子计划;武汉体育学院“十四五”湖北省优势特色学科(群)(鄂教研(2021)5号)资料。

摘　　要：为了探究服装表面粗糙度对跳台滑雪飞行阶段气动性能的影响,以跳台滑雪飞行阶段某一姿态为研究对象,将跳台滑雪运动员/滑雪板作为一个多体系统,采用SST k-ω湍流模型并通过计算流体力学(computational fluid dynamics,CFD)方法数值模拟预测了该系统在5种不同的跳台滑雪服表面粗糙度情况下飞行阶段空气动力学特性。结果表明:表面粗糙度为17.036μm时飞行阶段气动性能较优;适当增加滑雪服表面粗糙度能提升飞行阶段空气动力性能,从而达到更远的飞行距离;飞行阶段升阻比随着跳台滑雪服表面粗糙度的增加呈先增长后降低的趋势变化。研究成果可为跳台滑雪服材料选择和服装设计提供有效的辅助支持。To study the effects of the ski clothes'surface roughness on the aerodynamic characteristics during flight in ski-jumping,this study took a certain flight posture of ski-jumping during flight as the research object,the ath-lete/skis as a multi-body system,and used the SST k-ω turbulence model and computational fluid dynamics(CFD)numerical simulation methods to predict the aerodynamic characteristics during flight with five types of different sur-face roughness of ski clothes.The results show that the aerodynamic performance was better during flight when the surface roughness was 17.036μm.Increasing the surface roughness appropriately can improve the aerodynamic performance during flight so as to achieve a longer flight distance.The lift-drag ratio increases firstly and then de-creases with the increase of the surface roughness of ski jump suit.The research results will provide effective sup-port for the ski clothes materials'selection and clothing design.

关 键 词：跳台滑雪服 粗糙度 气动特性 飞行阶段 计算流体力学 

分 类 号：G804.6[文化科学—运动人体科学]