基于多场耦合的共轨喷油器温度场仿真分析

doi:10.16182/j.issn1004731x.joss.17-0257

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (7): 1334-1341.doi: 10.16182/j.issn1004731x.joss.17-0257

基于多场耦合的共轨喷油器温度场仿真分析

陈玉涛¹, 王作群², 龙正伟³, 张明蕊¹, 安青松^1,*, 陈桂兵¹

1. 中低温热能高效利用教育部重点实验室天津大学,天津 300350;
2. 中国船舶重工集团公司第七一一研究所,上海 200072;
3. 天津大学环境科学与工程学院,天津 300350

收稿日期:2017-05-27 修回日期:2017-08-28 发布日期:2019-12-12
作者简介:陈玉涛(1993-),男,河北,硕士生,研究方向为共轨式喷油器热力学性能仿真分析; 王作群(1989),男,吉林,研究生,工程师,柴油机高压共轨系统。

Temperature Field Simulation Analysis of Common Rail Injector Based on Multi-Field Coupling

Chen Yutao¹, Wang Zuoqun², Long Zhengwei³, Zhang Mingrui¹, An Qingsong^1,*, Chen Guibing¹

1. Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, Ministry of Education, Tianjin University, Tianjin 300350, China;
2. Shanghai Marine Diesel Engine Research Institute, Shanghai 200072, China;
3. School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China

Received:2017-05-27 Revised:2017-08-28 Published:2019-12-12

摘要/Abstract

摘要： 大功率高压共轨喷油器温升的准确预测直接关系到供油系统可靠性,为获得实验无法测得的温度分布,基于多物理场耦合仿真方法,建立共轨喷油器的流固耦合物理模型,发展了一种基于单向流固耦合精确计算温度分布的仿真方法,并结合与传统的以经验公式给定边界条件的方法对比,结果表明：流道中对流换热系数是随着流动状态的变化而变化,且该方法能够基于流动状态修正对流换热系数,从而提高了喷油器实际工作温度分布的预测精度;为解决这类型问题提供了指导意义。

关键词: 船用高压共轨喷油器, 温度场, 三维仿真, 单向流固耦合

Abstract: The reliability of high pressure common rail injector depends on the calculation accuracy of its temperature changing. Due to the temperature measurement limitation and difficulty, in order to obtain more detailed temperature distribution, a coupling physical model is established in this paper based on multi-fields coupling analysis method, and a method based on the uni-directional coupling for calculating the temperature distribution of injector accurately is developed. The results show that the convective heat transfer coefficient varies with the flow state and the multi-field coupling method can correct the convective heat transfer coefficient according to the flow state automatically, which improves the prediction accuracy of the actual temperature distribution of the injector and provides a common solution frame for similar fluid-solid coupling problems.

Key words: marine high-pressure common rail injector, temperature field, three-dimensional simulation, unidirectional fluid-structure coupling

中图分类号:

TK423.8

陈玉涛, 王作群, 龙正伟, 张明蕊, 安青松, 陈桂兵. 基于多场耦合的共轨喷油器温度场仿真分析[J]. 系统仿真学报, 2019, 31(7): 1334-1341.

Chen Yutao, Wang Zuoqun, Long Zhengwei, Zhang Mingrui, An Qingsong, Chen Guibing. Temperature Field Simulation Analysis of Common Rail Injector Based on Multi-Field Coupling[J]. Journal of System Simulation, 2019, 31(7): 1334-1341.

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基于多场耦合的共轨喷油器温度场仿真分析

Temperature Field Simulation Analysis of Common Rail Injector Based on Multi-Field Coupling

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