1. 제 목 : CFD Applications on Automotive Design


2. 연 사 : Dr. Cheolwan Kim (Program Lead Engineer - Thermal and Aero Management, General Motors Technical Center)


3. 일 시 : 2000년 4월 24일 (월요일) 13:30-15:00


4. 장 소 : 301동 1512호


5. 내 용 :


Computational Fluid Dynamics has been used for automobile design in the areas of external flow analysis, cooling package design, aerodynamic noise control, under-hood thermal analysis. Since it is economical, fast and accurate, its application field expands rapidly.


External flow analysis predicts the drag of the vehicle and helps to improve it. It has been mostly performed by wind tunnel testing. However CFD is taking over the role of wind tunnel more and more because it is fast, cheap, easy to change the geometry and understand the flow structure. Reynolds Averaged Navier-Stokes equations are simulated for the flow around the vehicle and some grid techniques are applied for better drag prediction.


Aeroacoustic noise prediction is implemented with Lighthill's acoustic analogy. Although it should be used for only acoustic noise propagation, it is used to simulate the noise generation for sun-roof buffeting. Its result helps to decide the sun-roof position and improve the noise.


6. 연사 약력 :


1992-1997 Dept. of Aerospace Engineering, The University of Michigan, Ph.D.


1988-1990 Dept. of Aeronautical Engineering, Seoul National University, M.S.


1984-1988 Dept. of Aeronautical Engineering, Seoul National University, B.S.


7. 연락처 : 기계항공공학부 윤영빈 교수 (전화 : 880-1904)