WIND-TUNNEL MEASUREMENTS OF HAZARD POSED BY LIFE-GENERATED WAKES

被引：10

作者：

ROSSOW, VJ

SACCO, JN

ASKINS, PA

BISBEE, LS

SMITH, SM

机构：

[1] NASA Ames Research Center, Moffett Field, CA

[2] NASA Ames Research Center, Moffett Field, CA

[3] Sterling Federal Systems, Inc., Moffett Field, CA

来源：

JOURNAL OF AIRCRAFT | 1995年 / 32卷 / 02期

关键词：

Aircraft - Airports - Atmospheric turbulence - Computer simulation - Data acquisition - Lift - Mechanical variables measurement - Subsonic aerodynamics - Vortex flow - Wind tunnels - Wings;

D O I：

10.2514/3.46713

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The results obtained during a wake-vortex test conducted in the NASA Ames Research Center 80- by 120-ft Wind Tunnel are described. The wind-tunnel test is part of an FAA and NASA program to study the characteristics of lift-generated vortices in order to safely increase airport capacity for subsonic transports. Data was first obtained to confirm that measurements in the 80- by 120-ft Wind Tunnel are in agreement with those taken in the 40- by 80-ft Wind Tunnel during the test program of the 1970s. Measurements are then presented on the maximum rolling moment induced on following models of various sizes when they encounter the vortex wakes shed by several configurations of a subsonic transport. Finally, measurements are presented of the lift and rolling moment induced on various following models, and of the downwash, as a function of spanwise distance in the wake. The wing spans of the followers vary from 0.085 to 1.022 times the span of the wake-generating model.

引用

页码：278 / 284

页数：7

共 20 条

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