Enhancements to the high speed convective heating and viscous drag prediction techniques of the Aerodynamic Preliminary Analysis System (APAS)APAS is an interactive computer program that allows a user to quickly estimate the aerodynamic characteristics of aerospace and aeronautical vehicles throughout the speed range using a single geometry definition. This report documents the major differences between the high speed analysis portion of the APAS and the Mark III version of the hypersonic arbitrary-body program from which it has evolved and compares convective heating and viscous drag results from the APAS with CFD results, experimental data, and flight data.
Document ID
19910058871
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cruz, Christopher I. (NASA Langley Research Center Hampton, VA, United States)
Engelund, Walter C. (NASA Langley Research Center Hampton, VA, United States)