气动悬浮列车单向翼翼型优化与地面效应分析  

Optimization and wing-in-ground analysis on Aero-train unidirectional-wing

作　　者：赖晨光[1,2] 任浡麒 阎志刚[2] 魏园园[2] Lai Chenguang;Ren Boqi;YanZhigang;Wei Yuanyuan

机构地区：[1]重庆理工大学汽车零部件制造及检测技术教育部重点实验室,重庆400054 [2]重庆理工大学车辆工程学院,重庆400054

出　　处：《空气动力学学报》2017年第1期123-128,共6页Acta Aerodynamica Sinica

基　　金：国家自然科学基金(51305477)

摘　　要：高速气动悬浮列车(Aero-train)是一种利用机翼地面效应原理的创新型高效高速低能耗高速列车。本文以LA203A为基础翼型,利用遗传算法与数值模拟的方法对基础翼型进行气动优化设计。通过对优化翼型的地面效应模拟分析,得出优化后的翼型其气动特性有明显改善,并由此得出气动悬浮列车单向翼离地间隙、迎角与阻力、升力、升阻比之间的关系。利用CFD技术对安装有基础机翼和优化后机翼的气动悬浮列车初始研究模型(AERO-1)整车气动特性进行数值模拟以及分析前后端机翼的流场特性,并利用风洞实验方法对装有优化机翼的气动悬浮列车初始研究模型(AERO-1)气动特性进行研究。利用遗传算法优化后机翼翼型升阻比特性较基础翼型最高提升26%,具备优化机翼的气动悬浮列车(AERO-1)在地面效应下的气动特性优于原始模型。本文研究为机翼地面效应分析以及气动悬浮列车研究提供理论依据。Aero-train is a new transportation with high speed and low energy consumption is based on the wing-in-ground effect(WIG).The Aero-train concept proposed Tohoku University in Japan in the first place and the relevant research carried out the support of the Japanese government.In this paper,the aerodynamic optimization design of LA203 Ais carried out by using genetic algorithm and numerical simulation method.the simulation analysis ground effect optimized airfoil,the influence of the ground clearance and the attack angle on the drag,lift and lift drag ratio of the-train and the aerodynamic characteristic is improved.CFD technology to the aerodynamic characteristic of AERO-1 with wings and optimized wings and the flow field characteristics around the front and rear wing.the aerodynamic characteristics of Aero-train with optimized wing,the wind tunnel test was in Jilin University.The lift-drag ratio of optimized airfoil which optimized by genetic algorithm method is 26% higher than the airfoil.The provides theoretical basis for the analysis of wing-in-ground effect and the research Aero-train.

关 键 词：气动悬浮列车 翼型 风洞实验 遗传算法 地面效应 CFD 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] V211.7