偏转板射流伺服阀先导级内三维流场数学模型

IF 3.3 3区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Journal of Zhejiang University-SCIENCE A Pub Date : 2022-10-01 DOI:10.1631/jzus.A2200030

Shuang Li, Yaochen Yin, Jiang-yang Yuan, Sheng-rong Guo

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引用次数: 2

摘要

为了准确描述偏转板射流伺服阀的流场结构和计算先导级的静态特性，提出了一种新的流场数学模型。将流场划分为五个区域，采用三维湍流射流来描述自由射流区域，并提出了射流的速度分布表达式。提出了压力恢复区射流夹带模型，描述了接收腔内压力与射流的耦合关系。得到了先导级的静态特性，包括压力-流量特性、压力特性和流量特性。分别通过有限元分析和实验验证了流场结构和静态特性，数学模型结果与实验和仿真结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Three-dimensional flow field mathematical model inside the pilot stage of the deflector jet servo valve

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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来源期刊

Journal of Zhejiang University-SCIENCE A 工程技术-工程：综合

CiteScore

5.60

自引率

12.50%

发文量

2964

审稿时长

2.9 months

期刊介绍： Journal of Zhejiang University SCIENCE A covers research in Applied Physics, Mechanical and Civil Engineering, Environmental Science and Energy, Materials Science and Chemical Engineering, etc.