基于气体射流的气液两相流动减阻特性

推进技术 ›› 2015, Vol. 36 ›› Issue (11): 1640-1647.

基于气体射流的气液两相流动减阻特性

谷云庆^1,2,牟介刚^1,2,代东顺^1,2,郑水华^1,2,蒋兰芳^2,3,吴登昊^2,3

浙江工业大学机械工程学院，浙江杭州 310014; 浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014,浙江工业大学机械工程学院，浙江杭州 310014; 浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014,浙江工业大学机械工程学院，浙江杭州 310014; 浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014,浙江工业大学机械工程学院，浙江杭州 310014; 浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014,浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014; 浙江工业大学之江学院，浙江杭州 310014,浙江工业大学过程装备及其再制造教育部工程研究中心，浙江杭州 310014; 浙江工业大学之江学院，浙江杭州 310014

发布日期:2021-08-15
作者简介:谷云庆(1982—)，男，博士，讲师，研究领域为表面减阻。
基金资助:
国家自然科学基金项目(51305399)；浙江省自然科学基金(LQ15E050005)。

Drag Reduction Characteristics on Gas-Liquid Two-Phase Flow Based on Gas Jet

College of Mechanical and Engineering，Zhejiang University of Technology，Hangzhou 310014，China; Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China,College of Mechanical and Engineering，Zhejiang University of Technology，Hangzhou 310014，China; Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China,College of Mechanical and Engineering，Zhejiang University of Technology，Hangzhou 310014，China; Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China,College of Mechanical and Engineering，Zhejiang University of Technology，Hangzhou 310014，China; Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China,Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China; Zhijiang College，Zhejiang University of Technology，Hangzhou 310014，China and Engineering Research Center of Process Equipment and Its Re-Manufacturing Ministry of Education，Zhejiang University of Technology，Hangzhou 310014，China; Zhijiang College，Zhejiang University of Technology，Hangzhou 310014，China

Published:2021-08-15

摘要/Abstract

摘要： 为了明确射流表面减阻特性，基于气液两相流动原理，建立具有射流功能的气液两相流动减阻计算模型，采用数值计算方法，通过RNG k-ε湍流模型对射流表面不同射流方向角、以及不同气体射流速度情况下的流场进行数值模拟及实验验证，分析气体射流对壁面黏性阻力、减阻率及流场的影响，研究气体射流的气液两相的减阻特性。结果表明:气体射流表面能够减小壁面黏性阻力，具有较好的减阻效果；四种射流方向角下，射流表面减阻率均在气体射流速度为5m/s时达到极大值，并且当射流方向角在xoz平面为-30°时，减阻率最大，为7.18%；数值模拟的减阻率效果略高于实验结果；气体射流的气液两相流动对壁面边界层进行了有效控制，减小了壁面的黏性剪应力和雷诺应力，导致壁面的黏性阻力减小，使得射流表面具有减阻性能。

关键词: 射流；两相流；减阻；数值模拟；黏性阻力

Abstract: In order to clarify the drag reduction characteristics on jet surface，a gas-liquid two-phase flow drag reduction model with jet function was established based on the two phase flow principle. Flow field with different jet direction angle and different gas jet velocity on the jet surface were numerically simulated using the RNG k-ε turbulence mode and experiment. The effects of gas jet on the wall viscous resistance，drag reduction rate and the flow field were analyzed，and the gas jet drag reduction characteristics of gas liquid two-phase flow were investigated. The results show that gas jet surface can reduce viscosity resistance on the wall，which has a good effect on drag reduction. Under the four kinds of jet angle，the drag reduction rate reached the maximum value when the gas jet velocity was 5m/s. The maximum resistance reduction rate was 7.18% when the jet direction angle on the xoz plane was -30°. The drag reduction rate of numerical simulation is slightly higher than the experiment value. In addition，gas-liquid two phase flow can also effectively be controlled by the boundary layer，which can reduce the viscous shear stress and Reynolds stress. It can also decrease viscous resistance of the wall，and the jet surface has drag reduction performance.

Key words: Jet；Two phase flow；Drag reduction；Numerical simulation；Viscous resistance

谷云庆,牟介刚,代东顺,郑水华,蒋兰芳,吴登昊. 基于气体射流的气液两相流动减阻特性[J]. 推进技术, 2015, 36(11): 1640-1647.

GU Yun-qing^1,2,MU Jie-gang^1,2,DAI Dong-shun^1,2,ZHENG Shui-hua^1,2,JIANG Lan-fang^2,3,WU Deng-haO^2,3. Drag Reduction Characteristics on Gas-Liquid Two-Phase Flow Based on Gas Jet[J]. Journal of Propulsion Technology, 2015, 36(11): 1640-1647.

参考文献

[1] Stephan P, Schweizer N. Experimental Study of Bubble Behavior and Local Heat Flux in Pool Boiling Under Variable Gravitational Conditions[J]. Multiphase Science and Technology, 2009, 21(4): 329-350.
[2] 金俞鑫, 薛婷, 曹兆峰, 等. 气液两相流三维测量中虚拟立体视觉传感器的优化设计与实验 [J]. 光电子?激光, 2012, 23(2): 297-302.
[3] 周云龙, 李洪伟, 刘旭. 粒子图像测速在气液两相流动结构研究中的应用[J]. 工程热物理学报, 2012, 33(10): 1723-1726.
[4] 周云龙, 黄娜. 高压环境下垂直管内汽液两相逆流过程数值研究 [J]. 中国电机工程学报, 2013, 33(29): 69-74.
[5] 宋云超, 宁智, 孙春华, 等. 液滴撞击壁面气泡的产生及运动研究[J]. 机械工程学报, 2014, 50(2): 153-158.
[6] 宋云超, 宁智, 王春海. 气液两相流动与固壁相互作用耦合求解的研究 [J]. 计算力学学报, 2013, 30(2): 261-268.
[7] Roisman I V, Opfer L, Tropea C, et al. Drop Impact onto a Dry Surface: Role of the Dynamic Contact Angle [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2008, 332(1-3): 183-191.
[8] Gupta A, Kumar R. Droplet Impingement and Breakup on a Dry Surface[J]. Computers and Fluids, 2010, 39(9): 1696-1703.
[9] 相威, 叶丁丁, 廖强, 等. 异形截面微通道内气液两相流动的实验研究[J]. 工程热物理学报, 2013, 34(6): 1087-1090.
[10] 莽珊珊, 余永刚. 边界形状对高压受限射流扩展稳定性影响[J]. 推进技术, 2011, 32(3): 334-338. (MANG Shan-shan, YU Yong-gang. Effects of Chamber Wall Shape on High-Pressure Gas Jet Expansion Stability in Bulk-Loaded Liqid[J]. Journal of Propulsion Technology, 2011, 32(3): 334-338.)
[11] 李书磊, 蔡伟华, 李凤臣. 水平管内气液两相流型及换热特性数值模拟[J]. 哈尔滨工业大学学报, 2014, 46(8): 57-64.
[12] Haroun Y, Legendre D, Raynal L. Direct Numerical Simulation of Reactive Absorption in Gas-Liquid Flow on Structured Packing Using Interface Capturing Method [J]. Chemical Engineering Science, 2010, 65(1): 351-356.
[13] Choi C W, Yu D I, Kim M H. Adiabatic Two-Phase Flow in Rectangular Microchannels with Different Aspect Ratios: Part I-Flow Pattern, Pressure Drop and Void Fraction[J]. International Journal of Heat and Mass Transfer, 2011, 54(1-3): 616-624.
[14] Choi C W, Kim M H. Flow Pattern Based Correlations of Two-Phase Pressure Drop in Rectangular Microchannels[J]. International Journal of Heat and Fluid Flow, 2011, 32(6): 1199-1207.
[15] Trifonov Y Y. Counter-Current Gas-Liquid Flow Between Vertical Corrugated Plates[J]. Chemical Engineering Science, 2011, 66(20): 4851-4866.
[16] Yue J, Boichot R, Luo L H, et al. Flow Distribution and Mass Transfer in a Parallel Microchannel Contactor Integrated with Constructal Distributors[J]. AIChE Journal, 2010, 56(2): 298-317.
[17] Xia G D, Liu X F. An Investigation of Two-Phase Flow Pressure Drop in Helical Rectangular Channel[J]. International Communications in Heat and Mass Transfer, 2014, 54(5): 33-41.
[18] Zhang X B, Yao L, Qiu L M, et al. Three-Dimensional Computational Fluid Dynamics Modeling of Two-Phase Flow in a Structured Packing Column[J]. Fluid Dynamics and Transport Phenomena, 2013, 21(9): 959-966.
[19] Ahmed S U, Ranganathan P, Pandey A, et al. Computational Fluid Dynamics Modeling of Gas Dispersion in Multi Impeller Bioreactor[J]. Journal of Bioscience and Bioengineering, 2010, 109(6): 588-597.
[20] 谢建宇, 宇波, 张一星, 等. 深井井筒气液两相流的数值研究[J]. 工程热物理学报, 2013, 34(5): 883-887.
[21] 周帆, 姜毅, 郝继光. 火箭发动机尾焰流场注水降温效果初探[J]. 推进技术, 2012, 33(2): 249-252. (ZHOU Fan, JIANG Yi, HAO Ji-guang. Exploring on Cooling Effect of Water Injection on Rocket Motor Exhaust[J]. Journal of Propulsion Technology, 2012, 33(2): 249-252.)
[22] Gu Y Q, Zhao G, Zheng J X, et al. Experimental?and Numerical Investigation on Drag Reduction of Non-Smooth Bionic Jet Surface[J]. Ocean Engineering, 2014, 81(5): 50-57.
[23] Song X G, Park J, Kim S G, et al. Performance Comparison and Erosion Prediction of Jet Pumps by Using a Numerical Method[J]. Mathematical and Computer Modeling, 2013, 57(1): 245-253.
[24] Li Z W, Huai W X, Qian Z D. Study on the Flow Field and Concentration Characteristics of the Multiple Tandem Jets in Crossflow[J]. Science China Technological Sciences, 2012, 55(10): 2778-2788.
[25] M'Bouana N L P, Zhao F X, Zhang Q H, et al. Numerical Simulation of Gas-Solid Flow in Square Cyclone Separators with Downward Exit[J]. Journal of Harbin Institute of Technology: New Series, 2014, 21(2): 83-90.
[26] 李宗翔, 顾润红, 张晓明, 等. 基于RNG k-ε湍流模型的3D采空区瓦斯上浮贮移[J]. 煤炭学报, 2014, 39(5): 880-885.
[27] 王晓升, 冯建刚, 陈红勋, 等. 泵站虹吸式出水管虹吸形成过程气液两相流数值模拟[J]. 农业机械学报, 2014, 45(5): 29, 78-83.
[28] Liu X M, Lu J, Gao R H, et al. Numerical Investigation of the Aerodynamic Performance Affected by Spiral Inlet and Outlet in a Positive Displacement Blower[J]. Chinese Journal of Mechanical Engineering, 2013, 26(5): 957-966.
[29] Tan L, Zhu B S, Cao S L, et al. Cavitation Flow Simulation for a Centrifugal Pump at a Low Flow Rate[J]. Chinese Science Bulletin, 2013, 58(8): 949-952.
[30] W?rner M. Numerical Modeling of Multiphase Flows in Microfluidics and Micro Process Engineering: a Review of Methods and Applications[J]. Microfluidics and Nanofluidics, 2012, 12(6): 841-886.
[31] 李相鹏, 郑水华. 逆向气流对规整填料表面液膜流体动力学特性的影响[J]. 化工学报, 2013, 64(9): 3130-3138.
[32] Hilgenfeldt S, Brenner M P, Grossmann S, et al. Analysis of Rayleigh-Plesset Dynamics for Sonoluminescing Bubbles[J]. Journal of Fluid Mechanics, 1998, 365(6): 171-204.
[33] 谷云庆, 牟介刚, 赵刚, 等. 射流表面减阻测试系统建模及减阻特性实验[J]. 华中科技大学学报: 自然科学版, 2014, 42(6): 22-27.
[34] Wang J, Zhang C C, Ren L Q, et al. Numerical Simulation on Flow Control for Drag Reduction of Revolution Body Using Dimpled Surface[J]. Journal of China Ordnance, 2011, 7(1): 59-64.
[35] 杨易, 黄剑锋, 聂云, 等. 车身单一非光滑表面与双表面耦合的减阻效果[J]. 华中科技大学学报: 自然科学版, 2014, 42(7): 124-127.
[36] 郭春风, 范宝春. 槽道湍流的法向与展向电磁力壁面减阻[J]. 推进技术, 2013, 34(8): 1023-1029. (GUO Chun-feng, FAN Bao-chun. Drag Reduction in Turbulent Channel Flow Utilizing Normal and Spanwise Lorentz Force[J]. Journal of Propulsion Technology, 2013, 34(8): 1023-1029.)(编辑:梅瑛)　　　　　　　　　　　　　*　收稿日期:2014-08-19；修订日期:2014-10-11。基金项目:国家自然科学基金项目(51305399)；浙江省自然科学基金(LQ15E050005)。作者简介:谷云庆(1982—),男,博士,讲师,研究领域为表面减阻。E-mail: guyunqing@hrbeu.edu.cn