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Influence analysis of fluctuation parameters on flow stability based on uncertainty method

  • Beihang University
  • National Institute of Metrology China
  • Beijing University of Chemical Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The relationship between flow fluctuation and pressure in a flow facility is studied theoretically and experimentally in this paper, and a method for measuring the flow fluctuation is proposed. According to the synchronicity of pressure and flow fluctuation, the amplitude of the flow fluctuation is calculated using the pressure measured in the flow facility and measurement of the flow fluctuation in a wide range of frequency is realized. Based on the method proposed, uncertainty analysis is used to evaluate the influences of different parameters on the flow fluctuation by the help of a sample-based stochastic model established and the parameters that have great influence are found, which can be a reference for the optimization design and the stability improvement of the flow facility.

Original languageEnglish
Article number055005
JournalReview of Scientific Instruments
Volume89
Issue number5
DOIs
StatePublished - 1 May 2018

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