Simulations of Re-entry vehicles by using DSMC with chemical-reaction module

Kun Chang Tseng*, Jong-Shinn Wu, Iain D. Boyd

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

In some applications of rarefied gas dynamics, including flows in aerospace/space engineering, film deposition technique in semiconductor and micro-reactor in medical science, chemical reactions play an important role and can not be ignored in these simulations. To understand effects of chemical reactions in these fields by experiment is very expensive and impractical. Thus, an appropriate simulation method is worthy to develop. A particle method named the direct simulation of Monte Carlo method (DSMC) is used to simulate these complicated flows and chemical-reaction module can be incorporated properly in the molecular level. In the current study, a chemical-reaction module, including dissociation, exchange and recombination for air species, is developed and implemented into a previously developed general-purpose parallel DSMC code (PDSC). The total collision energy model (TCE) is used to calculate the reaction probabilities for dissociation and exchange reactions. A three-body collision model, proposed by Boyd, is utilized to treat the recombination reaction. The reaction probability of each chemical reaction and the degree of dissociation of a single-cell are used to verify the chemical-reaction module by comparing with theoretical data. Then three different types of hypersonic re-entry vehicles, including sphere, blunt-body and Apollo, are simulated to understand the effects of chemical reactions.

Original languageEnglish
Title of host publicationA Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
Pages1789-1801
Number of pages13
StatePublished - 1 Dec 2006
Event14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference - Canberra, Australia
Duration: 6 Nov 20069 Nov 2006

Publication series

NameA Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonic Systems and Technologies Conference
Volume3

Conference

Conference14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
CountryAustralia
CityCanberra
Period6/11/069/11/06

Fingerprint Dive into the research topics of 'Simulations of Re-entry vehicles by using DSMC with chemical-reaction module'. Together they form a unique fingerprint.

Cite this