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Efficient multiphase rocket propellant injection model with high quality equation of state

Banuti, Daniel and Hannemann, Klaus (2014) Efficient multiphase rocket propellant injection model with high quality equation of state. Space Propulsion 2014, 19. - 22. May 2014, Cologne, Germany.

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Official URL: http://www.propulsion2014.com

Abstract

This paper reports on a new kind of real gas model, particularly suited for rocket injection applications. It di ffers from state-of-the-art models in two main ways: First, we use a precomputed library to store fluid data, instead of equation of state evaluation during runtime. Second, a newly developed multi-fluid-mixing model solves an individual equation of state (EOS) for each species, instead of evaluating a single EOS for a virtual pure fluid using van der Waals mixing or the corresponding states principle. This comes with a number of advantages: EOS evaluation becomes numerically very efficient; high delity EOS, such as Modifed Benedict-Webb-Rubin, may be used without performance penalty; the model allows for multiphase flow and phase change. The new model is demonstrated for several applications. Phase change is shown in 0D isobaric vaporization of oxygen, 1D combustion in an ideal gas limit. Finally, the model is applied to compute the reactive A60 Mascotte test case, where LOX and GH2 are coaxially injected at supercritical pressure. Maximum OH* concentration location is successfully predicted in the thin shear layer surrounding the LOX core.

Item URL in elib:https://elib.dlr.de/89117/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Paper-Nr. SP2014-2969161, Session 37
Title:Efficient multiphase rocket propellant injection model with high quality equation of state
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Banuti, Danieldaniel.banuti (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-9
Series Name:Confereance Proceedings on CD-ROM
Status:Published
Keywords:supercritical, injection, real gas, CFD
Event Title:Space Propulsion 2014
Event Location:Cologne, Germany
Event Type:international Conference
Event Dates:19. - 22. May 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - ProTAU + Prop2020 Hochleistungstriebwerke
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Micknaus, Ilka
Deposited On:28 Aug 2014 10:02
Last Modified:31 Mar 2015 10:50

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