AERODYNAMIC CHARACTERISTICS OF A HYPERSONIC VISCOUS OPTIMIZED WAVERIDER AT HIGH-ALTITUDES

被引：13

作者：

RAULT, DFG

机构：

[1] NASA Langley Research Center, Hampton, VA

[2] Aerothermodynamics Branch, Space Systems Division

来源：

JOURNAL OF SPACECRAFT AND ROCKETS | 1994年 / 31卷 / 05期

关键词：

D O I：

10.2514/3.26504

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The aerodynamic characteristics of a University of Maryland viscous optimized waverider are studied at altitudes ranging from 97 to 145 km and incidence angles of 0 to 30 deg. The direct simulation Monte Carlo method is used to simulate and analyze the flowfield around the waverider and evaluate surface loads. It is shown that the vehicle lift-to-drag ratio decreases rapidly as night altitude is increased, and is confined to values less than 0.3. At high altitudes, the waverider is surrounded by a thick viscous shock layer, and the friction forces, which are typically large at high Knudsen numbers, are shown to significantly reduce lift and increase drag.

引用

页码：719 / 727

页数：9