Comparisons between numerical calculations and measurements in vaned diffuser of SHF impeller
AnnieClaude BayeulLainé, Patrick Dupont, Giovanna Cavazzini, Patrick Cherdieu, Antoine Dazin, Gérard Bois, Olivier Roussette
1.Laboratoire de Mécanique de Lille（UMR CNRS 8107）， Arts et Métiers ParisTech, Lille 59046, France； 2.Laboratoire de Mécanique de Lille（UMR CNRS 8107）， Ecole Centrale de Lille， Villeneuve D′Ascq Cedex 59651, France； 3.Department of Industrial Engineering, University of Padova, Padova 35131， Italy
Comparisons between numerical calculations and measurements in vaned diffuser of SHF impeller
AnnieClaude BayeulLainé, Patrick Dupont, Giovanna Cavazzini, Patrick Cherdieu, Antoine Dazin, Gérard Bois, Olivier Roussette
摘要 The paper presents analysis of the performance and the internal flow behaviour in the vaned diffuser of a radial flow pump using PIV (particle image velocimetry) and pressure probe traverses. PIV measurements have already been performed at middle height inside one diffuser channel passage for a given speed of rotation and various mass flow rates. These results have been already presented in several previous communications. New experiments have been performed using a threehole pressure probe traverses from hub to shroud diffuser width at different radial locations between the two diffuser geometrical throats. Numerical simulations are also realized with the commercial codes Star CCM+702011 and CFX. Frozen rotor and fully unsteady calculations of the whole pump have been performed. Comparisons between numerical results, previous experimental PIV results and new probe traverses one′s are presented and discussed for one mass flow rate. In this respect, a first attempt to take into account fluid leakages between the rotating and fixed part of the pump has been checked since it may affects the real flow structure inside the diffuser.
通讯作者:
AnnieClaude BayeulLainé,Assistant professor (annieclaude.bayeullaine@ensam.eu), research fields: turbomachinery, numerical simulation.
引用本文:
AnnieClaude BayeulLainé, Patrick Dupont, Giovanna Cavazzini, Patrick Cherdieu, Antoine Dazin, Gérard Bois, Olivier Roussette. Comparisons between numerical calculations and measurements in vaned diffuser of SHF impeller[J]. 排灌机械工程学报, 2013, 31(12): 1013-1020.
AnnieClaude BayeulLainé, Patrick Dupont, Giovanna Cavazzini, Patrick Cherdieu, Antoine Dazin, Gérard Bois, Olivier Roussette. Comparisons between numerical calculations and measurements in vaned diffuser of SHF impeller. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(12): 1013-1020.
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