Date of Award

12-1990

Document Type

Thesis

Degree Name

Master of Science in Aeronautical Engineering

Department

Department of Aeronautics and Astronautics

First Advisor

Gerald A. Hasen, PhD

Abstract

The WRDC/FIMG Parabolized Navier-Stokes (PNS) Code is used to numerically predict both laminar and turbulent hypersonic flows over an ogive- cylinder body at zero angle of attack. A parametric study is conducted to determine the effects of selected code input variables on heat transfer and skin friction predictions. Comparisons are made between the PNS predictions and experimental data from the WRDC/Mach 6 High Reynolds Number Test Facility. Various problems encountered while obtaining PNS starting and marching solutions and corrective steps taken are discussed. A mesh resolution study indicates the minimum radial grid density sufficient for obtaining reasonable heat transfer results. As expected, surface property characteristics are shown to be sensitive to the placement of the first radial grid point away from the surface. Predicted values for surface pressure ratios, local Stanton numbers and local skin friction coefficients are compared with experimental data along the body for laminar through fully developed turbulent flows. Good agreement between the predictions and the experimental data is shown for all flow conditions.

AFIT Designator

AFIT-GAE-ENY-90D-4

DTIC Accession Number

ADA230496

Comments

The author's Vita page is omitted.

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