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THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer
September, 15-18, 2015, Sarajevo, Bosnia and Herzegovina

DOI: 10.1615/ICHMT.2015.THMT-15


ISBN Print: 978-1-56700-427-4

ISBN CD: 978-1-56700-428-8

Numerical simulations of atomization and flash evaporation of cryogenic nitrogen injection

pages 603-606
DOI: 10.1615/ICHMT.2015.THMT-15.1310
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摘要

The injection of cryogenic propellants in satellite rocket engines prior to ignition is characterized by very low back pressure leading to explosive flash evaporation. As a first step towards the capability of predicting the complete ignition process, in this paper influence factors on numerical simulations of the injection and flash evaporation of cryogenic nitrogen sprays into a low pressure chamber are analyzed and compared to experiments. Numerical models using an internal heat transfer coefficient for the calculation of energy and mass transfer from/to the superheated droplets have been implemented into ANSYS Fluent.

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