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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 an innovative, high-efficiency, high-speed, low-power, high-speed train using the wing ground effect principle. In this paper, LA203A-based airfoil, the use of genetic algorithms and numerical simulation of the basic airfoil aerodynamic design. Through the simulation analysis of the ground effect of the optimized airfoil, the aerodynamic characteristics of the optimized airfoil have been obviously improved, and the air gap, angle of attack and resistance, lift, lift-drag ratio The relationship between. CFD was used to simulate the aerodynamic characteristics of the aerodynamic suspension train initially equipped with basic and optimized wings (AERO-1) and to analyze the flow field characteristics of the front and rear wing. Wind tunnel test The aerodynamic characteristics of the aerodynamic suspension train initial model (AERO-1) with optimized wing were studied. The aerodynamic performance of AERO-1 with optimized wings is superior to that of the original model when the aerodynamic performance of the aerofoil suspension trains (AERO-1) with optimized wings is improved by up to 26% compared with that of the base airfoil. The research in this paper provides a theoretical basis for the analysis of the wing ground effect and the research of pneumatic suspension trains.