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A Study on the Tumble Flow Test Rig Used to Developing Engine Induction System  

Yun, Jeong-Eui (Division of Mechatronics, Kangwon National University)
Kim, Myung-Hwan (Division of Mechatronics, Kangwon National University)
Nam, Hyeon-Sik (Division of Mechatronics, Kangwon National University)
Min, Sun-Ki (Department of Powertrain, Technical Center, GM Daewoo Auto & Technology Co.)
Sim, Dae-Gon (Department of Powertrain, Technical Center, GM Daewoo Auto & Technology Co.)
Park, Pyeong-Wan (Department of Powertrain, Technical Center, GM Daewoo Auto & Technology Co.)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.14, no.6, 2006 , pp. 184-189 More about this Journal
Abstract
Tumble flow test rig has been used as the useful tool in the developing intake system because major flow pattern induced by intake port of DOHC engine is tumble. Angular momentum of in-cylinder tumble flow can not be directly measured by impulse torque meter in the test rig like that of in-cylinder swirl flow due to rotational axis of the flow. Therefore the adaptor to transform tumble to swirl flow must be adapted in the test rig. In this study, using the commercial CFD code STAR-CD, we studied the effects on measured results due to the variation of the major design variables in the adaptor, tube length(L), tube diameter(D) and cylinder height(H). The effect of the attached angle($\theta$) of the test head to the adaptor also was simulated.
Keywords
Tumble flow; Swirl flow; Intake system; Tumble flow test rig;
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  • Reference
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