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On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2022-10-21
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Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve
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Shuang-lu LI, Yao-bao YIN, Jiang-yang YUAN, Sheng-rong GUO. Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve[J]. Journal of Zhejiang University Science A, 2022, 23(10): 795-806.
@article{title="Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve",
author="Shuang-lu LI, Yao-bao YIN, Jiang-yang YUAN, Sheng-rong GUO",
journal="Journal of Zhejiang University Science A",
volume="23",
number="10",
pages="795-806",
year="2022",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200030"
}
%0 Journal Article
%T Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve
%A Shuang-lu LI
%A Yao-bao YIN
%A Jiang-yang YUAN
%A Sheng-rong GUO
%J Journal of Zhejiang University SCIENCE A
%V 23
%N 10
%P 795-806
%@ 1673-565X
%D 2022
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2200030
TY - JOUR
T1 - Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve
A1 - Shuang-lu LI
A1 - Yao-bao YIN
A1 - Jiang-yang YUAN
A1 - Sheng-rong GUO
J0 - Journal of Zhejiang University Science A
VL - 23
IS - 10
SP - 795
EP - 806
%@ 1673-565X
Y1 - 2022
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2200030
Abstract: A new flow field mathematical model is proposed to describe accurately the flow field structure and calculate the static characteristics of the pilot stage in a deflector jet servo valve (DJSV). The flow field is divided into five regions, a 3D turbulent jet is adopted to describe the free jet region, and a velocity distribution expression of the jet is proposed. The jet entrainment model is put forward in the pressure recovery region to describe the coupling relationship between the pressure in the receiving chamber and the jet flow. The static characteristics, including pressure-flow characteristics, pressure characteristics, and flow characteristics of the pilot stage are obtained. The flow field structure and the static characteristics are verified by finite element analysis (FEA) and experiment, respectively, and the mathematical model results are in good agreement with the experimental and simulation results.
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