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A Multiphasic Continuum Mechanical Model for Design Investigations of an Effusion-Cooled Rocket Thrust Chamber

Ghadiani, Saeed Reza (2005) A Multiphasic Continuum Mechanical Model for Design Investigations of an Effusion-Cooled Rocket Thrust Chamber. DLR-Forschungsbericht. DLR-FB 2005-18. Dissertation. Universität Stuttgart. 142 S. (In Press)

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Official URL: http://elib.uni-stuttgart.de/opus/volltexte/2005/2366/


In this thesis, the new concept of the German Aerospace Center (DLR) for an effusion-cooled ceramic rocket combustion chamber is investigated. Using effusion cooling, the porous inner liner of the chamber is cooled by passing the coolant through its pores. The theoretical treatment of the fluid-saturated deformable porous construction under non-isothermal conditions leads to a coupled solid-fluid model which is formulated in this thesis within the framework of the Theory of Porous Media (TPM). The multiphasic continuum mechanical model created allows for the definition of mechanical loads, thermal loads as well as a fluid mass flow across the boundary. All necessary constitutive equations are physically expedient conclusions resulting from the evaluation of the determining entropy inequality. The FE-tool PANDAS from the Institute of Mechanics (civil engineering) at University of Stuttgart is used as numerical solver. The numerical simulations discussed in this work are restricted to the qualitative demonstration of the most important physical effects occurring in the construction under study. For a real design study, material parameters have to be determined by experiments which are not the subject of this thesis. Corresponding experiments are being performed in ongoing activities at the DLR. The model presented in this work has to be understood as a general tool for the design investigation of actively cooled porous constructions.

Item URL in elib:https://elib.dlr.de/20777/
Document Type:Monograph (DLR-Forschungsbericht, Dissertation)
Title:A Multiphasic Continuum Mechanical Model for Design Investigations of an Effusion-Cooled Rocket Thrust Chamber
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Refereed publication:Yes
Open Access:No
Number of Pages:142
EditorsEmailEditor's ORCID iDORCID Put Code
Status:In Press
Keywords:Effusion Cooling, effusion-cooled rocket combustion chamber, ceramic combustion chamber, actively cooled constructions, multiphase problems, coupled solid-fluid model, entropy evaluation, TPM, PANDAS
Institution:Universität Stuttgart
Department:Bau- und Umweltingenieurwissenschaften
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 - Antriebsystemtechnik - Faserkeramische Brennkammer (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Space Structural Components
Deposited By: Ghadiani, Dr.-Ing. Saeed Reza
Deposited On:21 Dec 2005
Last Modified:14 Jan 2010 20:31

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