电磁阀动态特性的流固耦合模拟研究

推进技术 ›› 2015, Vol. 36 ›› Issue (7): 968-975.

电磁阀动态特性的流固耦合模拟研究

刘　君,徐春光,张　帆

大连理工大学运载工程与力学学部，辽宁大连 116024,大连理工大学运载工程与力学学部，辽宁大连 116024,大连理工大学运载工程与力学学部，辽宁大连 116024

发布日期:2021-08-15
作者简介:刘　君(1965—)，男，博士，教授，研究领域为空气动力学与流固耦合数值模拟。
基金资助:
国家自然科学基金(11272074)；辽宁省自然科学基金(201202033)。

Fluid-Structure Interaction Simulation of Dynamic Properties

Faculty of Vehicle Engineering and Mechanics，Dalian University of Technology，Dalian 116024，China,Faculty of Vehicle Engineering and Mechanics，Dalian University of Technology，Dalian 116024，China and Faculty of Vehicle Engineering and Mechanics，Dalian University of Technology，Dalian 116024，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究液体火箭发动机高压供气系统中电磁阀的动态特性，采用流固耦合方法对电磁阀进行数值模拟。结构采用单自由度质量弹簧阻尼动力学模型描述，纽马克算法(The Newmark Method)求解。流场控制方程为非定常Euler方程，采用弹簧近似动网格的ALE(Arbitrary Lagrangian-Eulerian)有限体积法求解。应用新型流固界面算法，采用“虚拟挡板通气”技术实现电磁阀开启/关闭引起的流场拓扑变化。数值模拟讨论了影响电磁阀动态特性的设计因素。模拟发现，存在19%能量损耗的主阀-气缸碰撞模型相对无损耗模型使阀门开度达到稳定状态的时间缩短一半，表明碰撞模型是电磁阀动态特性的重要影响因素。

关键词: 动态特性；流固耦合；界面算法；虚拟挡板；碰撞模型

Abstract: In order to study the dynamic properties of electromagnetic valve used in high pressure feed systems of liquid rocket engine，numerical simulation of electromagnetic valve has been performed by means of fluid-structure interaction scheme. The structure was modeled by the single freedom mass spring damper system，and was solved by the Newmark method. The flow field was governed by the unsteady Euler equation and was solved by the Arbitrary Lagrangian-Eulerian finite volume scheme based on the spring analogy dynamic mesh. The flow field solver employed a new fluid-structure interface scheme. The flow field topology transition induced by the valve charging/discharging was simulated by the virtual baffle technique. The design factors which are responsible for the dynamic properties of electromagnetic valve are presented. Simulation results show that the main valve-cylinder collision model with 19% energy loss has halved the time of valve opening distance reaching steady state compared with the collision model without energy loss. It is proved that the collision model is a crucial factor associated with the dynamic properties of electromagnetic valve.

Key words: Dynamic properties；Fluid-structure interaction；Interface scheme；Virtual baffle；Collision model

刘　君,徐春光,张　帆. 电磁阀动态特性的流固耦合模拟研究[J]. 推进技术, 2015, 36(7): 968-975.

LIU Jun,XU Chun-guang,ZHANG Fan. Fluid-Structure Interaction Simulation of Dynamic Properties[J]. Journal of Propulsion Technology, 2015, 36(7): 968-975.

参考文献

[1] Ahuja V, Hosangadi A, Shipman J D, et al. Multi-Element Unstructured Analyses of Complex Valve Systems[J]. Journal of Fluid Engineering, 2006, 128(4): 707-716.
[2] Ahuja V, Hosangadi A, Cavallo P A, et al. Simulations of Valve Motion Problems for Rocket Test Facilities[R]. AIAA 2007-5502.
[3] Ahuja V, Cavallo P A, Shipman J D, et al. Modeling Chatter in a Pressure Regulator Valve with a Multi-Physics Simulation Framework[R]. AIAA 2008-4669.
[4] Ahuja V, Hosangadi A, Shipman J D, et al. Simulations of Instabilities in Complex Valve and Feed Systems[R]. AIAA 2006-4758.
[5] Shipman J D, Hosangadi A, Ahuja V, et al. Unsteady Analyses of Valve Systems in Rocket Engine Testing Environments[R]. AIAA 2004-3663.
[6] Dossena V, Marinoni F, Bassi F, et al. Numerical and Experimental Investigation on the Performance of Safety Valves Operating with Different Gases[J]. International Journal of Pressure Vessels and Piping, 2013, 104: 21-29.
[7] 马莹雪, 孙得川. 电磁阀内部流场数值模拟[J]. 机床与液压, 2008, 36(1): 111-113, 131.
[8] 李哲, 魏志军, 张平. 燃气调压阀内流场三维数值模拟[J]. 固体火箭技术, 2007, 30(3): 201-213.
[9] 李哲, 魏志军, 张平. 调压阀内流场数值模拟及动态特性分析[J]. 北京理工大学学报, 2007, 27(5): 390-394.
[10] Batina J T. Unsteady Euler Airfoil Solutions Using Unstructured Dynamic Meshes[J]. AIAA Journal, 1990, 28(8): 1381-1388.
[11] Tezduyar T E, Behr M, Liou J. A New Strategy for Finite Element Computations Involving Moving Boundaries and Interfaces- the Deforming-Spatial-Domain/Space-time Procedure: I. the Concept and Preliminary Numerical Tests[J]. Computer Methods in Applied Mechanics and Engineering, 1992, 94(3): 339-351.
[12] 郭正, 刘君, 瞿章华. 非结构动网格在三维可动边界问题中的应用[J]. 力学学报, 2003, 35(2): 140-146.
[13] 刘君, 白晓征, 张涵信, 等. 关于变形网格“几何守恒律”概念的讨论[J]. 航空计算技术, 2009, 39(4): 1-5.
[14] 王巍. 有相对运动的多体分离过程非定常数值算法研究及实验验证[D]. 长沙: 国防科技大学研究生院, 2008.
[15] Farhat C, Van der Zee K G, Geuzaine P. Provably Second-Order Time-Accurate Loosely-Coupled Solution Algorithms for Transient Nonlinear Computational Aeroelasticity[J]. Computer Methods in Applied Mechanics and Engineering, 2006, 195(17): 1973-2001.
[16] 刘君, 徐春光, 刘瑜. 数值模拟流固耦合的界面新算法[C]. 烟台: 第十五届全国计算流体力学会议论文集, 2012: 247-253.
[17] 刘君, 徐春光, 董海波. 基于流固耦合方法模拟减压器动态特性[J]. 推进技术, 2014, 35(6): 721-726. (LIU Jun, XU Chun-guang, ZHANG Fan. Numerical Analysis of Dynamic Properties for a Pressure Relief Valve Using a Method of Fluid and Structure Interaction[J]. Journal of Propulsion Technology, 2014, 35(6): 721-726.)(编辑:梅瑛)　　　　　　　　　　　　　*　收稿日期:2014-05-14；修订日期:2014-07-08。基金项目:国家自然科学基金(11272074)；辽宁省自然科学基金(201202033)。作者简介:刘君(1965—),男,博士,教授,研究领域为空气动力学与流固耦合数值模拟。E-mail:liujun65@dlut.edu.cn