抛物线型面空速管的气动补偿特性研究  

RESEARCH OF AERODYNAMIC-COMPENSATION CHARACTERISTICS OF A PARABOLA PROFILE PITOT-STATIC TUBE

作　　者：郑刘[1] 周月荣[1] 侯良学[1] 陈志敏[1] 

机构地区：[1]西北工业大学航空学院,西安710072

出　　处：《工程力学》2012年第2期212-215,共4页Engineering Mechanics

摘　　要：从二维轴对称Navier-Stokes方程出发,利用有限体积法,对抛物线型面空速管在马赫数Ma≤1.5的气动特性进行了数值计算。并通过试验对比验证了模型和数值计算方法的正确性。给出了不同长细比下抛物线型面的补偿特性,建立了不同马赫数下补偿量与长细比之间的具体关系。结果表明,抛物线型面空速管对机头位置误差具有良好的补偿特性,且补偿量随型面段长细比的增大而减小。Based on the solution of 2-D axisymmetric Navier-Stokes equations with cell-centered finite-volume algorithm,the aerodynamic characteristics of a parabola profile pitot-static tube at Ma≤1.5 were calculated.The model and the numerical calculation method were proved to be correct by comparing with the experiment.The compensation characteristics of parabola profile pitot-static tubes for various fineness ratios were given,and the data correlation between compensation and fineness ratios at different Mach numbers was founded.The results show that the parabola profile pitot-static tube is able to provide the desired compensation for aircraft head position error,and the compensation is decreased with the increase of the fineness ratio of the profile section.

关 键 词：抛物线 空速管 气动补偿 数值计算 长细比 

分 类 号：V211.46[航空宇航科学与技术—航空宇航推进理论与工程]