Accession Number:

AD0840269

Title:

ESTABLISHMENT OF AN UNSYMMETRICAL WAKE TEST CAPABILITY FOR AERODYNAMIC DECELERATORS. VOLUME II. ANALYSIS OF HIGH-SPEED AXISYMMETRIC WAKES AND PARASONIC PARACHUTE PERFORMANCE

Descriptive Note:

Final rept. 1 Mar 1966-15 Jan 1968

Corporate Author:

GOODYEAR AEROSPACE CORP AKRON OH

Personal Author(s):

Report Date:

1968-08-01

Pagination or Media Count:

165.0

Abstract:

Methods were developed to predict the boundary layer and wake characteristics of symmetric bodies moving at supersonic speeds. The methods developed for predicting boundary layer characteristics are applicable to both laminar and turbulent flow over axisymmetric or two-dimensional bodies and can be used as an approximation for the flow over quasisymmetric bodies. The wake predictive methods were developed for axisymmetric flow and are applicable to both laminar and turbulent wakes. The aforementioned methods were combined and programmed so that wake profiles can be determined based only on inputs of forebody geometry and free-stream conditions. Also presented is a method for calculating the drag of parachutes using the flow field immediately ahead of the parachute as the free-stream conditions. An analysis of the effects of various geometric and free-stream parachuters on parachute performance was conducted and trends determined.

Subject Categories:

  • Gliders and Parachutes
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE