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Coupled Simulation of CFD and Flight Mechanics with a Two-Species-Gas-Model for the Hot Staging of a Multistage Rocket

Li, Yi and Reimann, Bodo and Eggers, Thino (2014) Coupled Simulation of CFD and Flight Mechanics with a Two-Species-Gas-Model for the Hot Staging of a Multistage Rocket. 19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 16-20 June 2014, Atlanta, GA.

Full text not available from this repository.

Abstract

The hot staging dynamics of a multistage rocket is studied using the coupled simulation of Computational Fluid Dynamics (CFD) and Flight Mechanics (FM). In the coupled simulations, the free-stream is modeled as “cold air” and the exhausted plume from the continuing-stage-motor is modeled with an equivalent calorically-perfect-gas that approximates the properties of the plume at the nozzle exit. The Navier-Stokes equations in the coupled simulations are time-accurately solved in moving system, with which the Flight Mechanics equations can be fully coupled. The Chimera mesh technique is utilized to deal with the relative motions of the separated stages. A few representative staging cases with different initial flight conditions of the rocket are studied with the coupled simulation. Based on the simulation results, the staging dynamics of the rocket are finally analyzed.

Item URL in elib:https://elib.dlr.de/89704/
Document Type:Conference or Workshop Item (Speech)
Title:Coupled Simulation of CFD and Flight Mechanics with a Two-Species-Gas-Model for the Hot Staging of a Multistage Rocket
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Li, Yiyi.li (at) dlr.deUNSPECIFIED
Reimann, Bodobodo.reimann (at) dlr.deUNSPECIFIED
Eggers, Thinothino.eggers (at) dlr.deUNSPECIFIED
Date:June 2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Coupled simulation, Flight Mechanics, Stage Separation, Plume, SHEFEX, VLM
Event Title:19th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Atlanta, GA
Event Type:international Conference
Event Dates:16-20 June 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 - VLM für Shefex
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Steinberg, Silke
Deposited On:15 Jul 2014 14:42
Last Modified:17 Oct 2014 14:20

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