Description of an incompressible variable density approach for the description of supercritical fluids flows

Magalhães, Leandro; Cleto, João M. N.; Silva, A. R. R.; Barata, Jorge M M

http://hdl.handle.net/10400.6/12562

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Abstract(s)

The simplification of the incompressible but variable density jet is based on the visualization of data similarity. Given the initial encouraging results obtained in the past, we extend, in the present paper, this hypothesis to a broader range of conditions to ascertain its applicability and its role as an alternative to the more commonly fully-compressible formulations encountered in the literature. Transcritical and supercritical injection conditions are considered for nitrogen, which works as a surrogate for the oxygen-hydrogen mixture combination, characteristic of liquid rocket propulsion. A close agreement is found between experiments and numerical results in terms of axial profiles and jet spreading rates.

Keywords

supercritical fluids Incompressible variable density approach Liquid Rocket Engines

URI

http://hdl.handle.net/10400.6/12562

Citation

Leandro Magalhães, João Cleto, André Silva, Jorge Barata, "Description of an incompressible variable density approach for the description of supercritical fluids flows", SPACE PROPULSION 2022, 8th Edition of the Space Propulsion Conference, Estoril, Portugal, 9-13 may, 2022