Collins, Donald J. and Lees, Lester and Roshko, Anatol (1969) An experimental study of the near wake of a two-dimensional hypersonic blunt body with mass addition. In: AIAA 7th Aerospace Sciences Meeting, January 20-22, 1969, New York, NY. https://resolver.caltech.edu/CaltechAUTHORS:20141210-132533513
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Abstract
An experimental investigation of the steady, laminar near-wake flow field of a two-dimensional, adiabatic, circular cylinder with surface mass transfer has been made at a free-stream Mach number of 6.0. The pressure and mass-concentration fields associated with the transfer of argon, nitrogen or helium into the near wake were studied for mass transfer from the forward stagnation region, and from the base. For sufficiently low mass transfer rates from the base, for which a recirculating zone exists, the entire near-wake flow field correlates with the momentum flux, not the mass flux, of the injectant, and the mass-concentration field is determined by counter-current diffusion into the reversed flow. For mass addition from the forward stagnation region, the pressure field is undisturbed and the mass-concentration field is nearly uniform in the region of reversed flow. The axial decay of argon mass concentration in the intermediate wake, downstream of the neck, is explained with the aid of an integral solution in the incompressible plane, from which the location of the virtual origin for the asymptotic far-wake solution has been derived as one result.
| Item Type: | Conference or Workshop Item (Paper) | |||||||||
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| Additional Information: | © 1969 AIAA. Work supported by A. R. O. and A. R. P. A. under Contract DA-31-124-ARO(D)-33. | |||||||||
| Group: | GALCIT | |||||||||
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| DOI: | 10.2514/6.1969-67 | |||||||||
| Record Number: | CaltechAUTHORS:20141210-132533513 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141210-132533513 | |||||||||
| Official Citation: | An experimental study of the near wake of a two-dimensional hypersonic blunt body with mass addition D. COLLINS, L. LEES, and A. ROSHKO 7th Aerospace Sciences Meeting. January 1969 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 52556 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 10 Dec 2014 22:00 | |||||||||
| Last Modified: | 10 Nov 2021 19:42 |
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