等螺距螺杆真空泵内气体流动的数值模拟研究*

doi:10.13385/j.cnki.vacuum.2024.01.08

真空 ›› 2024, Vol. 61 ›› Issue (1): 52-57.doi: 10.13385/j.cnki.vacuum.2024.01.08

等螺距螺杆真空泵内气体流动的数值模拟研究^*

何天一¹, 岳向吉¹, 张志军¹, 巴德纯¹, 冯晓荣¹, 杨帆²

1.东北大学机械工程与自动化学院,辽宁沈阳 110819;
2.广东美芝制冷设备有限公司,广东佛山 528000

收稿日期:2023-04-06 出版日期:2024-01-25 发布日期:2024-01-24
通讯作者: 岳向吉,副教授;巴德纯,教授。
作者简介:何天一（1997-）,男,黑龙江省牡丹江市人,博士生。
基金资助:
* 国家自然科学基金（31371873）

Numerical Simulation of Gas Flow in a Fixed Pitch Screw Vacuum Pump

HE Tian-yi¹, YUE Xiang-ji¹, ZHANG Zhi-jun¹, BA De-chun¹, FENG Xiao-rong¹, YANG Fan²

1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China;
2. Guangdong Meizhi Compressor Co., Ltd., Foshan 528000, China

Received:2023-04-06 Online:2024-01-25 Published:2024-01-24

摘要/Abstract

摘要： 应用计算流体力学（CFD）方法对螺杆干式真空泵进行数值模拟计算,建立了针对螺杆干式真空泵流场的分析方法。对泵腔中流动区域进行三维建模,采用SCORG和ANSYS-ICEM软件对转动域和固定域分别进行了网格划分,利用瞬态模拟方法得到了泵内压力场、速度场和温度场的分布情况,并计算出抽气速率等参数。网格无关性分析结果与理论数据对比表明数值模拟结果可靠,符合预期。

关键词: 螺杆真空泵, CFD, 动网格, 数值模拟

Abstract: The computational fluid dynamics (CFD) method was used to simulate the screw dry vacuum pump by numerical simulation and calculation, and the analysis method for the flow field of screw dry vacuum pump was established. The flow area in the pump chamber was modeled in 3D, and the rotating and fixed domains were meshed separately with SCORG and ANSYS-ICEM softwares. The transient simulation method was used to obtain the distribution of pressure field, speed field and temperature field in the pump, and the parameters such as pumping rate were calculated. Perform mesh agnostic analysis was carried out, and the comparison between analysis results and the theoretical data shows that the numerical simulation results are reliable and in line with expectations.

Key words: screw vacuum pump, CFD, dynamic grid, numerical simulation

中图分类号: TB752

何天一, 岳向吉, 张志军, 巴德纯, 冯晓荣, 杨帆. 等螺距螺杆真空泵内气体流动的数值模拟研究^*[J]. 真空, 2024, 61(1): 52-57.

HE Tian-yi, YUE Xiang-ji, ZHANG Zhi-jun, BA De-chun, FENG Xiao-rong, YANG Fan. Numerical Simulation of Gas Flow in a Fixed Pitch Screw Vacuum Pump[J]. VACUUM, 2024, 61(1): 52-57.

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等螺距螺杆真空泵内气体流动的数值模拟研究^*

Numerical Simulation of Gas Flow in a Fixed Pitch Screw Vacuum Pump

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