Browse

Numerical Modeling for the Accurate Computations of Arc-Heater Flows

Cited 0 time in Web of Science Cited 0 time in Scopus
Authors
Lee, Jeong-Il; Kim, Chongam; Kim, Kyu Hong
Issue Date
2006-09-07
Publisher
ECCOMAS
Citation
ECCOMAS (The European Community on Computational Methods in Applied Science) CFD 2006, 5-8 June 2006, Egmond aan Zee, Netherlands
Keywords
공학Plasma wind tunnelArc-HeaterJoule heatingRadiationTurbulence
Abstract
The purpose of this paper is to develop an accurate analysis code for the flow of
arc-heater by employing advanced numerical models. Governing equations are hyperbolictype
axisymmetric Navier-Stokes equations which include joule heating by arc, radiation and
turbulent transport effect. Joule heating is simply calculated by Ohm’s law with the given
distribution of current. Radiation is computed by the three-band model which accounts for
self-absorption and is consistent with the detailed line-by-line radiation model. Turbulence
effect is incorporated by two-equation turbulence models which can describe the transport of
turbulence. In order to assess the performance of the newly developed code, AHF and IHF
are calculated in various operating conditions. And, it is confirmed that two-equation
turbulence models combined with the three-band radiation model simulate the flow physics in
arc-heater more accurately than any other previous models and the influence of the
turbulence is as much as or bigger than radiation effect.
Language
English
URI
http://hdl.handle.net/10371/82320
Files in This Item:
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse