Influence of flowfield and vehicle parameters on engineering aerothermal methodsThe reliability and flexibility of three engineering codes used in the aerosphace industry (AEROHEAT, INCHES, and MINIVER) were investigated by comparing the results of these codes with Reentry F flight data and ground-test heat-transfer data for a range of cone angles, and with the predictions obtained using the detailed VSL3D code; the engineering solutions were also compared. In particular, the impact of several vehicle and flow-field parameters on the heat transfer and the capability of the engineering codes to predict these results were determined. It was found that entropy, pressure gradient, nose bluntness, gas chemistry, and angle of attack all affect heating levels. A comparison of the results of the three engineering codes with Reentry F flight data and with the predictions obtained of the VSL3D code showed a very good agreement in the regions of the applicability of the codes. It is emphasized that the parameters used in this study can significantly influence the actual heating levels and the prediction capability of a code.
Document ID
19890055908
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wurster, Kathryn E. (NASA Langley Research Center Hampton, VA, United States)
Zoby, E. Vincent (NASA Langley Research Center Hampton, VA, United States)
Thompson, Richard A. (NASA Langley Research Center Hampton, VA, United States)