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http://dx.doi.org/10.5139/JKSAS.2005.33.5.001

Investigation of Turbulent Flow Effect in Segmented Arc Heater  

Lee, Jeong-Il (서울대학교 항공우주공학과 대학원)
Kim, Kyu-Hong (서울대학교 기계항공공학부)
Kim, Chong-Am (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.5, 2005 , pp. 1-8 More about this Journal
Abstract
Flows in segmented arc-heaters have been calculated for prediction of experimental operating condition or for analysis and design of arc-heater itself. Some researchers succeeded in calculating accurately inner flows of a arc-heater, but could not made mathematical models which satisfy various operating conditions for many arc-heaters. this study is forced on turbulence for the generality of mathematical model. Instead of algebraic turbulence models which are frequently used for calculating inner flow of arc-heater, two equation turbulent models are used. Prediction results agree well with experiment data and it was confirmed that $k-\varepsilon$ two equation turbulence model is appropriate for a flow in an arc heater throughout extensive numerical testing.
Keywords
Arc-Jet Wind Tunnel; Arc-Heater; Plasma; Joule Heating; Radiation Model; Turbulence Model;
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