轴向柱塞泵配流分析用湍流模型探析

doi:10.3901/JME.2018.18.204

机械工程学报 ›› 2018, Vol. 54 ›› Issue (18): 204-211.doi: 10.3901/JME.2018.18.204

轴向柱塞泵配流分析用湍流模型探析

张晋^1,2,3, 龚学知³, 胡建军³, 权凌霄^1,2,3, 哈良³, 孔祥东^1,2,3

1. 先进制造成形技术及装备国家地方联合工程研究中心(燕山大学) 秦皇岛 066004;
2. 燕山大学河北省重型机械流体动力传输与控制教育部实验室秦皇岛 066004;
3. 燕山大学机械工程学院秦皇岛 066004

收稿日期:2017-08-26 修回日期:2018-05-03 出版日期:2018-09-20 发布日期:2018-09-20
通讯作者: 孔祥东(通信作者),男,1959年出生,博士,教授,博士研究生导师。主要研究方向为流体传动与控制。E-mail:xdkong@ysu.edu.cn
作者简介:张晋,男,1984年出生,博士,讲师,硕士生研究生导师。主要研究方向为流体传动与控制。E-mail:zhangjin@ysu.edu.cn
基金资助:
国家重点基础研究发展计划（973计划，2014CB046405）和秦皇岛市科技支撑计划（201602A005）资助项目。

CFD Analysis of the Turbulence Model Adopted in Distribution Process in Axial Piston Pump

ZHANG Jin^1,2,3, GONG Xuezhi³, HU Jianjun³, QUAN Lingxiao^1,2,3, HA Liang³, KONG Xiangdong^1,2,3

1. China Key Laboratory of Advanced Forging & Stamping Technology and Science, Yanshan University, Qinhuangdao 066004;
2. Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control of Ministry of Education, Yanshan University, Qinhuangdao 066004;
3. School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004

Received:2017-08-26 Revised:2018-05-03 Online:2018-09-20 Published:2018-09-20

摘要/Abstract

摘要： 流量脉动是衡量柱塞泵性能的重要指标之一，测试系统较为复杂，采用理论手段准确分析柱塞泵流量脉动成为专家研究的热点。针对柱塞泵内部流动状态比较复杂且其内部流场模拟没有通用湍流模型的情况，建立单柱塞-配流盘结构的机理模型，分别采用标准k-ε模型、Realizable k-ε模型、RNG k-ε模型、标准k-ω模型、S-A模型和层流模型对单柱塞-配流盘机理模型进行三维数值模拟，并与PIV试验结果进行对比分析。通过分析其涡系形态、流速、入射角度、压降及流量等特征，确定柱塞泵单柱塞-配流盘机理模型数值模拟最佳湍流模型。对模拟效果较好的标准k-ε模型进行系数修正，进一步提高模拟精度，得到的计算模型为柱塞泵流量分析提供了理论基础。

关键词: PIV试验, 流场分析, 湍流模型, 柱塞泵

Abstract: Flow pulsation is one of the important indicators to measure the performance of the plunger pump. Because the test system is more complex, accurate analysis of the pulsation of the plunger pump by theoretical means has become a hot topic for experts. In view of the complex flow state of the internal field of axial piston pump, there is no universal turbulence model adopted in the numerical simulation of the flow. Therefore, a mechanism model of a single piston-valve plate is established. Standard k-ε model, Realizable k-ε model, RNG k-ε model, standard k-ω model, S-A model and laminar model are used in the numerical simulation of the flow field and compared with the result of the PIV analysis. After evaluating the vortex shape, velocity, angle of incidence, pressure drop and flow, the optimal turbulence model adopted in the numerical simulation of the single piston-valve plate model is determined. The simulation accuracy can be further improved by modifying the coefficient of the standard k-ε model. The calculated model provides a theoretical basis for the flow analysis of plunger pump.

Key words: axial piston pump, flow field analysis, PIV test, turbulence model

中图分类号:

TH137

张晋, 龚学知, 胡建军, 权凌霄, 哈良, 孔祥东. 轴向柱塞泵配流分析用湍流模型探析[J]. 机械工程学报, 2018, 54(18): 204-211.

ZHANG Jin, GONG Xuezhi, HU Jianjun, QUAN Lingxiao, HA Liang, KONG Xiangdong. CFD Analysis of the Turbulence Model Adopted in Distribution Process in Axial Piston Pump[J]. Journal of Mechanical Engineering, 2018, 54(18): 204-211.

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轴向柱塞泵配流分析用湍流模型探析

CFD Analysis of the Turbulence Model Adopted in Distribution Process in Axial Piston Pump

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