|Table of Contents|

Analysis on the measurement position refinement method of five-hole probe used in complex flow field (PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2023年03期
Page:
48-55
Research Field:
目次
Publishing date:

Info

Title:
Analysis on the measurement position refinement method of five-hole probe used in complex flow field
Author(s):
GUO Tao1;  XU Yuan2;  ZHANG Jing1;  XIE Jinwei3;  LIU Cunliang1
(1.School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China; 2.Xi'an Aerospace Propulsion Institute, Xi'an 710100, China; 3. AECC Sichuan Gas Turbine Establishment, Chengdu 610500, China)
Keywords:
complex flow field;  five-holes probe;  measurement position refinement method;  numerical
PACS:
V211.71
DOI:
-
Abstract:
In order to address the problem of the flow field character losing when measuring the complex flow filed with five-holes probe due to the limited number of measurement points, a refinement method to obtain the detailed flow field was investigated by using the measured flow fields information to refine the measurement positions. The method was also verified by numerical simulations in a cascade flow field. The results show that the effective refine decision can be obtained by selecting reasonable parameters for flow characteristics. The change of flow angle may be used as the judgement parameter in the vortex-influenced area, and the change of velocity can be regarded as the judgement parameter near the exit of the cascade between the pressure surface and the suction surface. For the complex flow fields, the refinement method of probe position based on the first-order difference of judgement parameters can obtain the complete flow field information by refining the measuring points in the area of dramatic velocity change and affected by vortex system.

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