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[열유체부문] 수치적 기법을 이용한 자동차 Defrost 노즐 유동을 위한 설계인자 연구
배인호(Inho Bae),강규태(Kutae Kang),황지은(Jieun Hwang),박원규(Warngyu Park),장기룡(Kilyong Jang) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.11_1
Velocity profile and its magnitude affect greatly to defrosting and demisting in the windshield. In this paper, the three dimensional flow analysis in the defrost nozzle which is geometrically complicated was performed to investigate and predict velocity profile of the nozzle outlet. The three dimensional Navier-Stokes code used in this case was validated by performing Of the generic A/C duct flow analysis successfully. The results of defrost nozzle flow analysis nearly coincided with experimental data. Based on the standard case, design factors were applied. Flow analysis was carried out with three different number of the guide vanes. The angle of the guide vane was applied to the nozzle outlet also. In the flow simulation inside the automotive, inlet velocity was provided by a exit velocity of the defrost nozzle. The investigation of the each case informed us which case could produce the best velocity profile to defrost. Through these procedure, the optimized design factor was found. Further more, this three dimensional incompressible code will be used to predict and compare with any kind of defrost nozzle flow.