Journal
INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES
Volume 30, Issue 1, Pages 91-100Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/tjj-2012-0036
Keywords
centrifugal compressor; accelerated start-up; transient flow field
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In order to study the flow field in the impeller in the accelerating start-up process of centrifugal - compressor, the 3-D and 1-D transient accelerated flow governing equations along streamline in the impeller of the centrifugal compressor are derived in detail, the assumption of pressure gradient distribution is presented, and the solving method for 1-D transient accelerating flow field is given based on the assumption. The solving method is achieved by programming and the computing result is obtained. It is obtained by comparison that the computing method is met with the test result. So the feasibility and effectiveness for solving accelerating start-up problem of centrifugal compressor by the solving method in this paper is proven.
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