中国机械工程 ›› 2026, Vol. 37 ›› Issue (10): 2556-2565.DOI: 10.3969/j.issn.1004-132X.2026.10.018
收稿日期:2025-08-25
出版日期:2026-10-25
发布日期:2026-11-10
通讯作者:
朱利斌
作者简介:朱利斌*(通信作者),男,1990年生,博士、副教授。研究方向为绿色制造。E-mail:libinz@hfut.edu.cn。
基金资助:
ZHU Libin1,2(
), CHEN Guanyu1,2, CHENG Peng3, ZHAO Xu1,2
Received:2025-08-25
Online:2026-10-25
Published:2026-11-10
Contact:
ZHU Libin
摘要:
通过计算流体动力学和实验研究系统分析了高压CO2冷却射流的马赫盘结构特性并构建了马赫盘结构与质量流量、喷嘴直径和压力的关系式。基于SST k-ω湍流模型和欧拉两相流方法,建立含CO2凝结相的数值模型,并通过实验验证了模型的可靠性。研究结果表明:马赫盘位置和直径的仿真平均误差分别为5.34%和4.92%;针对常用马赫盘结构经验公式,比例系数
中图分类号:
朱利斌, 陈冠宇, 程鹏, 赵旭. 面向切削冷却的高压CO2射流马赫盘结构优化调控[J]. 中国机械工程, 2026, 37(10): 2556-2565.
ZHU Libin, CHEN Guanyu, CHENG Peng, ZHAO Xu. Optimization and Regulation of Mach Disk Structure in High-pressure CO2 Jet for Cutting Cooling[J]. China Mechanical Engineering, 2026, 37(10): 2556-2565.
| 边界条件 | 类型 | 具体参数 | 备注 |
|---|---|---|---|
| 入口(ab) | 压力入口 | 5.10~7.38 MPa | 出入口温度条件根据实际温度设定 |
| 出口(ghij) | 压力出口 | 0.101 325 MPa | |
| 壁面(defg) | 固体 | 铝合金 | 无滑移的绝热边界 |
表1 边界条件设定
Tab.1 Boundary condition settings
| 边界条件 | 类型 | 具体参数 | 备注 |
|---|---|---|---|
| 入口(ab) | 压力入口 | 5.10~7.38 MPa | 出入口温度条件根据实际温度设定 |
| 出口(ghij) | 压力出口 | 0.101 325 MPa | |
| 壁面(defg) | 固体 | 铝合金 | 无滑移的绝热边界 |
| 组别 | 序号 | 质量流量 | 压力p/MPa | 喷嘴直径dn/mm |
|---|---|---|---|---|
| a | 1 | 1.00 | 5.10 | 0.26 |
| 2 | 1.00 | 6.00 | 0.24 | |
| 3 | 1.00 | 7.38 | 0.21 | |
| b | 4 | 1.35 | 5.10 | 0.30 |
| 5 | 1.35 | 6.80 | 0.26 | |
| 6 | 1.35 | 7.25 | 0.24 | |
| c | 7 | 1.15 | 6.00 | 0.26 |
| 8 | 1.55 | 6.00 | 0.30 | |
| 9 | 1.83 | 6.00 | 0.33 | |
| 10 | 2.85 | 6.00 | 0.40 |
表2 高压CO2射流前端参数
Tab.2 Parameters of the front end of high-pressure CO2 jet
| 组别 | 序号 | 质量流量 | 压力p/MPa | 喷嘴直径dn/mm |
|---|---|---|---|---|
| a | 1 | 1.00 | 5.10 | 0.26 |
| 2 | 1.00 | 6.00 | 0.24 | |
| 3 | 1.00 | 7.38 | 0.21 | |
| b | 4 | 1.35 | 5.10 | 0.30 |
| 5 | 1.35 | 6.80 | 0.26 | |
| 6 | 1.35 | 7.25 | 0.24 | |
| c | 7 | 1.15 | 6.00 | 0.26 |
| 8 | 1.55 | 6.00 | 0.30 | |
| 9 | 1.83 | 6.00 | 0.33 | |
| 10 | 2.85 | 6.00 | 0.40 |
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