A Correlation of Forced Convection Heat Transfer Measurements on Blunted Cones and Hemispheres for Mach Numbers up to 10.2 and Reynolds Numbers up to 4.5 x 10 to the 7th Power
Abstract
Data from 18 wind tunnel and free flight tests on heat transfer to blunt cones and hemispheres are correlated with simple theoretical formulae. The Mach number and Reynolds number ranges for these tests are from 1.33 to 10.2 and 8 x 10 to the 2nd power to 4.5 x 10 to the 7th power, respectively. The blunt cone models have semiangles between 4.75 and 15 degrees and nose to base radius ratios between 0.125 and 0.8. For the free flight tests, estimates of the error in measured heat transfer parameters are made and only points showing errors of less than 10% are retained in the analysis. The wind tunnel results are claimed to have errors within this limit. The Nusselt number - Reynolds number relationships are investigated and Reynolds Analogy Factors determined for a selection of the tests. In these correlations corrections for compressibility effects are made. The ratios of measured Nusselt numbers to the corresponding theoretical incompressible Nusselt numbers are also determined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1962
- Accession Number
- AD0333301
Entities
People
- M. W. Seel
- P. R. Bignell
- R. A. Brewer