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Interfacial Area Modeling for Eulerian Spray Simulations in Liquid Rocket Engines

Banuti, Daniel (2008) Interfacial Area Modeling for Eulerian Spray Simulations in Liquid Rocket Engines. In: 2008 AIAA Conference Proceedings. 44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2008-07-21 - 2008-07-23, Hartfort, Connecticut, USA.

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Abstract

Contributions to Statistical Eulerian-Eulerian (SEE) flow models of two-phase flow are discussed in this article. Special attention is given to the Interfacial Area Transport Equation (IATE) which al-lows for sub grid scale modeling of exchange processes and a topological interpretation of continuous results. An interfacial area convection velocity is derived based on the assumption of strati-fied flow. This scheme will be shown to also hold in the limit of dilute spray. In the case of vanishing surface tension and heat of vaporization, disintegration of a supercritical jet can be described as a mixing rather than an atomization process. Following this assumption, growth of interfacial area due to stretching is dis-cussed and a new model term suggested. To resolve former diffi-culties with the interfacial area inflow boundary condition, an automatic interfacial area detection is proposed. This new term also allows for automatic creation of interfacial area in the case of unsteady injection or formation of a phase (e.g. condensation, cavitation, vaporization). The described model is implemented in the DLR finite volume TAU code.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Interfacial Area Modeling for Eulerian Spray Simulations in Liquid Rocket Engines
Authors:
AuthorsInstitution or Email of Authors
Banuti, DanielUNSPECIFIED
Date:2008
Journal or Publication Title:2008 AIAA Conference Proceedings
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
AIAA, UNSPECIFIED
Status:Published
Keywords:Multiphase, Interfacial Area, Spray, Combustion Chamber, Injection
Event Title:44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Event Location:Hartfort, Connecticut, USA
Event Type:international Conference
Event Dates:2008-07-21 - 2008-07-23
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - numerische Verfahren (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Dagmar Brennecke-Hosseinzadeh
Deposited On:15 Jan 2009
Last Modified:27 Apr 2009 15:04

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