LES of N2/H2 Transcritical Injection in a Rocket Combustion Chamber

Raffaele Olmeda, Christian Stemmer

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In modern Launcher Rocket Engines (LRE), the study of the behavior of the injector in combustion chamber has been complicated by the fact that lower fuel temperature and higher pressure are used to achieve larger enthalpy values. In addition to this, methane has become more and more common in aerospace application, therefore transcritical states are often reached by the mixing of fuel and oxidizer. The goal of this work is to correctly characterize the transcritical mixing of coaxial N2/ H2 injector. Real-gas thermodynamic is used for this purpose in combination with appropriate inlet turbulent boundary conditions. In particular, an effort has been made to use realistic inlet turbulent conditions and a high order scheme has been employed for the calculation of the convective fluxes.

Original languageEnglish
Title of host publicationNotes on Numerical Fluid Mechanics and Multidisciplinary Design
PublisherSpringer Science and Business Media Deutschland GmbH
Pages569-578
Number of pages10
DOIs
StatePublished - 2021

Publication series

NameNotes on Numerical Fluid Mechanics and Multidisciplinary Design
Volume151
ISSN (Print)1612-2909
ISSN (Electronic)1860-0824

Keywords

  • Binary mixtures
  • Mixing
  • Transcritical injection

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