Performance analysis of a centrifugal compressor with variable inlet guide vanes

XIAO Jun; GU Chuangang; SHU Xinwei; GAO Chuang

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Performance analysis of a centrifugal compressor with variable inlet guide vanes

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The flow in a centrifugal compressor stage with variable inlet guide vanes (VIGVs) is investigated by numerical simulation in this paper.Analysis of the performance curves and relative velocity vectograms indicates that performance curves shift toward small flow domain when VIGVs turn positively,and toward large flow domain when VIGVs turn negatively.Stage efficiency drops quickly after work condition enters a small flow domain through the peak efficiency point.Under the circumstance of large setting angles of the guide vanes,there exist obvious flow separations in guide vane passages within wide flow ranges,and back flow regions can be located at the front of splitter suction surfaces under large flow conditions,while under the condition of small flow,flow separations occur on suction surfaces of long blades.

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《中国高等学校学术文摘·能源与动力工程》|2007年第4期|473-476|共4页
作者
XIAO Jun; GU Chuangang; SHU Xinwei; GAO Chuang;
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作者单位

School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China;

School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China;

School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China;

School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China;

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原文格式 PDF
正文语种 chi
中图分类一般性问题;
关键词
variable inlet guide vane; centrifugal compressor; performance curve; setting angle;

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Performance analysis of a centrifugal compressor with variable inlet guide vanes

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