Numerical simulation of aerodynamic interactions among helicopter rotor,fuselage,engine and body of revolution

作     者：CAO YiHua WU ZhenLong HUANG JunSen 

作者机构：School of Aeronautic Science and EngineeringBeihang University 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2014年第57卷第6期

页      面：1206-1218页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：numerical simulation aerodynamic interaction helicopter actuator disc model rotating reference frame model 

摘      要：Numerical simulations of helicopter aerodynamic interactions among the main rotor,fuselage,engine inlets/outlets and slung loads of specific geometries have been conducted by very few *** this work,the steady-state compressible Reynolds-averaged navier-stokes equations are solved to study the aerodynamic interactions among helicopter rotor,fuselage,engine and body of revolution in three cases,namely MI-171V5,ROBIN and *** the first case,the downwash flow provided by the rotor of the uniform actuator disc model induces a significant deflection of the airflow *** vortex-shaped distribution and evolution are discussed in *** engine can effectively change the overall flow *** asymmetry of the flow field is observed by using the non-uniform actuator disc *** analysis of ROBIN and quantitative computation of UH-60A show a consistent accuracy of the rotating reference frame model for *** blade tip vortex motion of UH-60A is simulated and its radial position prediction is compared to empirical *** performing flow of UH-60A in hover,both the fuselage normal force and rotor lift decrease because of the impact of the body of revolution.