A Transonic Wind Tunnel Interference Assessment - Axisymmetric Flows.
Abstract
A wind tunnel interference assessment concept which presents a rational predictive means of wall interference analysis is evaluated. The procedure consists of employing as an outer boundary condition an experimentally-measured pressure distribution along a convenient control surface located inward from the actual tunnel walls. Attention has been focused on axisymmetric flows in the transonic regime where tunnel interference is high and where the experimentally-measured conditions on the control surface are of mixed subsonic/supersonic type. Based on the transonic small-disturbance equation, results for surface and near flow field pressure distributions are presented for a variety of different slender body shapes. These calculations indicate both the accuracy of the procedure as well as its ease of implementation. The procedure relates directly to the correctable-interference wind tunnel concept recently suggested. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1979
- Accession Number
- ADA068767
Entities
People
- J. R. Spreiter
- S. S. Stahara
Organizations
- Nielsen Engineering & Research (United States)