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장조원,전창수,김문상,이열,문희장,송병흠,김학봉,Chang, J.W.,Jeon, C.S.,Kim, M.S.,Lee, Y.,Moon, H.J.,Song, B.H.,Kim, H.B. 한국항공운항학회 2005 한국항공운항학회지 Vol.13 No.4
A closed-circuit type wind tunnel is designed, which has a test section with the dimensions $1.2(W){\times}1.2(H){\times}3.4(L)$. A subsonic wind tunnel is designed to improves educational circumstances and promote ground tests. It is constituted of an exchangeable test section, first and second diffusers, a fan, a settling chamber, a contraction, and 4 corners. The maximum velocity in the test section is 70m/s and the contraction ratio is 6.25:1. Input power in the wind tunnel is about 96.1 kw (128.8 hp) and its energy ratio is 3.89. It has the dimension of about $7.4(W){\times}3.6(H){\times}21.7m(L)$. The wind tunnel designed in this investigation will be an effective educational and investigational equipment.
고정빈 ( J. B. Ko ),이관형 ( K. H. Lee ),구자예 ( J. Y. Koo ),전창수 ( C. S. Jeon ),문희장 ( H. J. Moon ) 한국분무공학회 2004 한국액체미립화학회지 Vol.9 No.3
N/A Characteristics of droplet vaporization at high ambient pressures and temperatures which are supercritical conditions is studied numerically by formulating one dimensional vaporization model in liquid dodecane and air. Modified Soave-Redlich-Kwong state equation is used to condider real gas effect. Non-ideal behavior of properties at near critical and supercritical conditions is considered in the high pressure condition. Characteristic spatial distribution of properties with various conditions of pressure and temperature is evaluated in order to understand vaporizing evolution.