동적유동모사장치를 이용한 PZEV 기준 대응용 배기계의 유동 분포 측정을 위한 실험적 연구 = An Experimental Study on the Measurement of Exhaust Flow Distribution using Simulated Dynamic Flow Bench for PZEV Exhaust manifolds

다국어 초록 (Multilingual Abstract)

As the current and future automobile emission regulations become stringent, the research of exhaust manifold and CCC has been the interesting and remarkable subject. The design of a CCC manifold is a formidable task due to the complexity of the flow distribution caused by the pulsating flows that are emitted by the exhaust ports. Measurement of flow distribution can be done with computational fluid dynamics (CFD). However, such simulations must be verified with selected experimental data. In this study, conventional casting type and stainless steel bending type of a 4-cylinder engine(with 900 cell CCC system) was performed to investigate the flow distribution of exhaust gases. Pressure was measured using simulated dynamic flow bench and 5-hole pitot probe. And then the flow uniformity of bending type exhaust manifold compared with that of the casting type. Based on the experimental data, this study verified exhaust system optimization for the better use of catalytic converter.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험장치 및 방법
• 3. 실험 결과
• 4. 결론
• 감사의 글
• References