Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (3): 397-402.DOI: 10.12068/j.issn.1005-3026.2016.03.020

• Mechanical Engineering • Previous Articles     Next Articles

Flow Filed Simulation and PTV Verification ofthe Hydrodynamic Torque Converter with Adjustable Guide Vanes

MA Wen-xing, LIU Hao, LIU Chun-bao   

  1. School of Mechanical Science and Engineering, Jilin University, Changchun 130022, China.
  • Received:2015-02-10 Revised:2015-02-10 Online:2016-03-15 Published:2016-03-07
  • Contact: LIU Chun-bao
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Abstract: In order to study the internal flow characteristics of a hydrodynamic torque converter with adjustable guide vanes, the hydrodynamic torque converter with 320mm circular diameter was selected as the research subject. The computational fluid dynamics (CFD) method was applied to calculate the internal fluid flows at different openings and working conditions. Meanwhile, a prototype made by plexiglass was tested by PTV. Then, the internal flows were both obtained using CFD and PTV. Under the same opening, the flow velocity increased with the speed ratio, and the angle between the flow direction and the inlet angle direction of the adjustable guide vane increased as well. In the stall condition, the vortex phenomenon was observed near the vane’s working surface. However, at the no-load condition, the vortex phenomenon emerged in the vane’s non-working surface. The results showed that the numerical simulation method can perform a comparatively accurate prediction of the internal flow characteristics of the hydrodynamic torque converter with adjustable guide vanes in comparison with the test, which can provide a method and basis for the research on its internal flow state, and the performance prediction and design optimization of the hydrodynamic torque converter with adjustable guide vanes.

Key words: hydrodynamic torque converter with adjustable guide vanes, internal flow field, working condition, opening, CFD (computational fluid dynamics), PTV (particle tracking velocimetry)

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