Air flow field characteristics in a compact chamber system are indispensable for the efficient development of vehicle aerodynamic performance. In this study, air flow and velocity uniformity in the chamber system were numerically analyzed using the CFD method. Air flows at a uniform velocity from the outlet of the blower, passes fast through the heat exchanger with partial pressure difference, and then moves into the blower inlet. Overall pressure drop through the fan gradually increases with the flow rate. The uniformity varies along the test section, decreasing by 5-10% with distance from the nozzle. These predicted results can be widely used as basic conceptual design data for an efficient vehicle chamber system.

Abstract
1. 서 론
2. 전산해석
    2.1 지배방정식
    2.2 해석모 델 및 격자시스템
    2.3 해석기법 및 경계조건
3. 결과 및
    3.1 공기유속에 따른 챔버 내 유동장
    3.2. 송풍기 출구부근 속도균일도
4. 결 론
후 기
References

• 박다인(Student, Dept. of Mechanical Engineering, Wonkwang University) | Da-In Bak
• 공병진(Master course, Dept. of Mechanical Engineering, Wonkwang University) | Byeong-Jin Kong
• 이상호(Dept. of Mechanical Engineering, Wonkwang University) | Sang-Ho Lee Corresponding author