충돌제트에 의한 덕트내 사각발열체의 냉각특성에 관한 수치해석적 연구
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Because Impinging Jet has excellent heat & mass transfer characteristics, It has many advantages of cooling, drying, etc and widely applied at industrial fields Therefore, there have been many experimental investigations and theoretical studies about Impinging jet The present study is about a cooling characteristic by Impinging Jet for a Square Plate on Duct and investigated this characteristic through three-dimensions numerical analysis, using FLUENT As the result of this study, heat transfer effect is the most appropriate condition when the ratio of distance is6 between nozzle exit diameter and heat source, diameter of duct is 90mm and height of duct is 60mm In addition, under the influence of injected Jet, stagnant fluid flow into free jet field and this affected the whole flow field So the shape of duct is a Important factor and the researcher confirmed the need of investigation about duct