3D viscous inverse design of vaned diffuser to supress flow unsteadiness in a centrifugal compressor

被引：1
作者：
Mileshin, Victor I. [1 ]
Brailko, Igor A. [1 ]
Startsev, Andrew N. [1 ]
Orekhov, Igor K. [1 ]
机构：
[1] Cent Inst Aviat Motors, 2 Aviamotomaya St, Moscow 111116, Russia
来源：
PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE, VOL 2 | 2005年
关键词：
D O I：
10.1115/FEDSM2005-77335
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Present paper is devoted to numerical investigation of unsteadiness caused by impeller-diffuser interaction in a 8:1 total pressure ratio centrifugal compressor. The compressor designed by CIAM [7], and manufactured and tested by Customer gave satisfactory performances even under the first test. Further development requires new insights and advanced numerical tools. In this context, this paper presents Navier-Stokes computations of 3D viscous unsteady flow field within the impeller-diffuser configuration. Steady and unsteady computations indicated spacious zone of low velocity / reverse flow on pressure surface of the diffuser vane. To suppress this reverse flow, new vaned diffuser has been tailored through application of 3D inverse design procedure for Navier-Stokes equations [8]. Subsequent steady and unsteady N-S calculations performed for compressor with the new diffuser demonstrated depression of reverse flow within diffuser and different unsteady loading of the diffuser vane.
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页码：161 / 168
页数：8
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