基于动量源方法的涵道尾桨CFD分析  

CFD Analysis for the Ducted Tail Rotor Based on Momentum-Source Method

作　　者：宋长红[1] 林永峰[1] 陈文轩[1] 刘衍涛[1] 

机构地区：[1]中国直升机设计研究所,景德镇333001

出　　处：《直升机技术》2009年第1期6-11,共6页Helicopter Technique

摘　　要：本文采用CFD方法分析了悬停状态下涵道尾桨的流场特性。该方法以动量源代替桨叶对流场的作用来分析涵道尾桨的气动特性。即通过编写UDF程序把动量源加入到N-S方程中,建立了一套适合于直升机涵道尾桨流场和气动特性的CFD数值模拟方法。然后利用所建立的数值模拟方法对某个涵道尾桨进行分析,并与试验结果进行对比以验证数值方法的有效性。The flow field characteristic of a helicopter ducted tail rotor in hovering were analyzed using CFD method in this paper.The momentum-source term with functional relationship to the local flow conditions represented the spinning rotor in flow field and were added to the N-S equations by UDF procedure.It sets up the CFD methods which fits to analysis the flow field and aerodynamics characteristic of a helicopter ducted tail rotor.Then,it analysis a helicopter ducted tail rotor with the present method and con...

关 键 词：CFD 涵道尾桨 气动特性 UDF 

分 类 号：V211.47[航空宇航科学与技术—航空宇航推进理论与工程]