Analysis of the Axisymmetric Base-Pressure and Base-Temperature Problem with Supersonic Interacting Freestream-Nozzle Flows Based on the Flow Model of Korst, et.al. Part 2. A Comparison and Correlation with Experiment for Cylindrical Afterbodies
Abstract
The functional behavior and the effects of the many geometric and flow variables on the base-pressure and base-temperature ratios can be qualitatively predicted with the flow model of Korst, et. al. Although the predicted trends are correct, the discrepancy between predicted and experimental values of the base-pressure ratios can be significant under certain conditions of geometry and flow. To improve predicted-experimental agreement and to establish a basis for a quantitative analysis of the base-pressure problem with this flow model, a modification to the flow model based on an empirically determined recompression coefficient is proposed. The recompression coefficient and its principal dependence on the nozzle-to-base radius ratio are established by detailed comparisons with experiment over a wide range of the governing variables. The recompression coefficient and the detailed comparisons with experimental data are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1969
- Accession Number
- AD0868895
Entities
People
- A. L. Addy