|Table of Contents|

Analysis and experimental investigation on aerodynamic performance and coupling structural strength of a S-shaped valve inlet(PDF)

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

Issue:
2020年06期
Page:
76-81
Research Field:
研究与设计
Publishing date:

Info

Title:
Analysis and experimental investigation on aerodynamic performance and coupling structural strength of a S-shaped valve inlet
Author(s):
ZHU Jianguo1; XU Xiangyi2; ZHOU Xuefeng1
(1.Xi'an Aerospace Propulsion Institute, Xi'an 710100,China; 2.Xi'an Bureau,Air Force Equipment Department of China,Xi'an 710065,China)
Keywords:
S-shaped valve inlet;  aerodynamic performance;  coupling structural strength;  wind tunnel test
PACS:
V432
DOI:
-
Abstract:
In order to meet the high performance requirement of an aircraft cooling system, the valve inlet with subsonic S-shaped gradual flow channel was designed, and the aerodynamic performance and coupling structural strength were studied by numerical simulation and experimental investigation.By setting the subsonic compressible flow field with pressure far-field boundary, full field initialization and simulating the flow by back pressure, the aerodynamic performance under different flow conditions and attack angles was obtained.The actual aerodynamic performance was also studied by wind tunnel test, and its total pressure recovery coefficient was 0.978～0.999 at an incoming flow of 0.7 Ma and 160 kg/h.The numerical simulation is consistent with the test results, which can be applied to the aerodynamic performance analysis and optimization design of similar inlet.The structure strength was simulated by one-way fluid-structure interaction method interpolating and mapping the pressure on the interface, and the simulation results shows that the strength safety margin meets the requirements, and the structure of valve inlet is in good condition after the verification test in vind tunnel.

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