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Validation of the DLR TAU Code for Scale-Resolving Combustion Simulations

Horchler, Tim and Fechter, Stefan and Hannemann, Klaus (2018) Validation of the DLR TAU Code for Scale-Resolving Combustion Simulations. Space Propulsion 2018, 14.-18. Mai 2018, Sevilla, Spanien.

Full text not available from this repository.

Official URL: https://spacepropulsion2018.com/

Abstract

The accurate numerical simulation of combustion processes in rocket thrust chambers is a key element in the design of future space transportation vehicles. Besides the need for robust and fast RANS methods for evaluating different design approaches, scale-resolving simulation techniques like Large- and Detached-Eddy simulations allow to gain insight into complex dynamic processes in the combustion chamber. One example for this is the development of combustion instability which is currently not fully understood. This work will present the extension of the DLR TAU code for chemically reacting scale-resolving flow simulations. This work presents detached-eddy simulation results for the DLR H-3 GH2/Air flame using a progress-variable flamelet model. The DLR-H3 flame is a low-speed jet flame under ambient conditions that has been studied experimentally and numerically by many groups. Due to its simple and accessible experimental setup, various measurements of flow velocities and species mass fractions are available. We will present comparison to the experimental results as well as a detailed analysis of the grid resolution. Also, different numerical approaches will be presented and compared. A second study will focus on the the capabilities of the TAU code to accurately model the unsteady mixing process of real-gas O2 with gaseous hydrogen under high pressure conditions. For this part of the work, the real-gas extensions of TAU will be applied to the numerical case of Ruiz et al. This test case models the mixing of cryogenic O2 and GH2 behind a bluff body in a 2D geometry. Although this is a purely numerical test case, a comparison with the results of TAU will give valuable insights into the capabilities of TAU compared to other solvers.

Item URL in elib:https://elib.dlr.de/119337/
Document Type:Conference or Workshop Item (Speech)
Title:Validation of the DLR TAU Code for Scale-Resolving Combustion Simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Horchler, Timtim.horchler (at) dlr.deUNSPECIFIED
Fechter, StefanStefan.Fechter (at) dlr.deUNSPECIFIED
Hannemann, Klausklaus.hannemann (at) dlr.deUNSPECIFIED
Date:2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:CFD, Validierung, skalenauflösende Simulation, Verbrennung
Event Title:Space Propulsion 2018
Event Location:Sevilla, Spanien
Event Type:international Conference
Event Dates:14.-18. Mai 2018
Organizer:Association Aéronautique et Astronautique de France
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 - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bachmann, Barbara
Deposited On:25 Jul 2018 14:27
Last Modified:25 Jul 2018 14:27

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