Tell a friend
Print
Numerical Simulation of Nozzle Flow into High Vacuum Using Kinetic and Continuum Approaches
Grabe, Martin and Fasoulas, Stefanos and Hannemann, Klaus (2008) Numerical Simulation of Nozzle Flow into High Vacuum Using Kinetic and Continuum Approaches. STAB 2008 (16. DGLR-Fach-Symposium), 2008-11-03 - 2008-11-04, Aachen (Germany). (Submitted)
 | There is a more recent version of this item available. |
![[img]](http://elib.dlr.de/style/images/fileicons/application_pdf.png)
| PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 138Kb |
Abstract
Laminar nitrogen flow expanding through a conical nozzle into high vacuum is to be numerically reproduced and compared to available experimental data. As the gas density varies quickly by several orders of magnitude, leading to high rarefaction and thermal non-equilibrium, standard (continuum) CFD tools are not sufficient to accurately model the expanding flow. In the work presented here, the efficiency of Navier-Stokes solvers is to be exploited where applicable, supplying the boundary conditions for a kinetic Direct Simulation Monte Carlo (DSMC) solver to handle the domain of rarefaction and non-equilibrium. The hypersonic character of the flow suggests to attempt a pure downstream coupling. The validity of this approach is to be verified.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Title: | Numerical Simulation of Nozzle Flow into High Vacuum Using Kinetic and Continuum Approaches | ||||||||
| Authors: |
| ||||||||
| Date: | 31 October 2008 | ||||||||
| Status: | Submitted | ||||||||
| Keywords: | DSMC, rarefied, plume expansion | ||||||||
| Event Title: | STAB 2008 (16. DGLR-Fach-Symposium) | ||||||||
| Event Location: | Aachen (Germany) | ||||||||
| Event Type: | international Conference | ||||||||
| Event Dates: | 2008-11-03 - 2008-11-04 | ||||||||
| Organizer: | RWTH Aachen | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Space | ||||||||
| 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: | Martin Grabe | ||||||||
| Deposited On: | 08 Jan 2009 | ||||||||
| Last Modified: | 18 Apr 2011 13:23 |
Available Versions of this Item
- Numerical Simulation of Nozzle Flow into High Vacuum Using Kinetic and Continuum Approaches. (deposited 08 Jan 2009) [Currently Displayed]
Repository Staff Only: item control page
