Flow Field Analysis of Pulse Converter Exhaust Manifold of Diesel Engines

Wen Jun Zhong; Zhi Xia He; Zhao Chen Jiang; Yun Long Huang

doi:10.4028/www.scientific.net/AMR.468-471.1693

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 468-471Flow Field Analysis of Pulse Converter Exhaust...

Flow Field Analysis of Pulse Converter Exhaust Manifold of Diesel Engines

Abstract:

A three-dimensional unsteady flow for the pulse converter exhaust manifold of 8-cylinder diesel engine was numerical simulated to get the flow characteristics of the exhaust manifold. Simulation results show that there are strong eddy flows, low pressure closed recirculation flow region in the exhaust manifold. Afterwards the structure optimization of the exhaust manifold with baffle was put forward and then the unsteady flow in the normal exhaust manifold, the exhaust manifold with baffle of 30 degrees and the exhaust manifold of 15 degrees were simulated and analyzed. It is concluded that the exhaust manifold with baffle is better than that without baffle, the recirculation flow region and the pressure loss in the exhaust manifold with baffle of 30 degrees is smaller than in it with baffle of 15 degree and the flow in the former exhaust manifold is much smoother.

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Periodical:

Advanced Materials Research (Volumes 468-471)

Pages:

1693-1696

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.468-471.1693

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Online since:

February 2012

Authors:

Wen Jun Zhong, Zhi Xia He, Zhao Chen Jiang, Yun Long Huang

Keywords:

Diesel, Exhaust Manifold, Flow Field, Numerical Simulation, Unsteady Flow

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