杨蕊,高伟,葛瑾瑾,柴煜炜,迟小平,赵盎

• 1:东北石油大学机械科学与工程学院

摘要(Abstract)：

为探究旋流场内气泡形变的发生机理以及运移规律，文中运用高速摄像技术对气泡破碎过程进行实验研究，通过定义气泡的等效直径，推导出旋流场内气泡破碎时间的评价模型，得出气泡破碎时间与韦伯数的关系。此外，运用计算流体动力学(CFD)对气泡与流场间的相互作用进行仿真分析。结果表明，气泡在入口处受到液流的冲击作用，表面出现微小褶皱，变形程度较小。随着气泡进入旋流场，在剪切力和离心力的共同作用下形变程度加剧，气泡边缘产生气泡颈，内部出现凹陷并发生破碎。气泡在破碎瞬间，表面积比为2.69，表面平均速度是初始入射速度的2.1倍，破碎后各项表征参数数值逐渐下降并趋于稳定，得出气泡在旋流场内运移特性及形变规律。研究结论为旋流场内气泡形态变化及其运移特性的探究提供了可靠的理论依据与实验参考。

关键词(KeyWords)： 气泡形变;旋流场;韦伯数;破碎时间;等效直径

Abstract:

Keywords:

基金项目(Foundation): 黑龙江省教育科学规划重点课题(GJB1422149,GJB1423352)

作者(Author): 杨蕊,高伟,葛瑾瑾,柴煜炜,迟小平,赵盎

参考文献(References)：

• [1]李鑫，张攀，陈光辉，等.液相中气泡上升行为与界面传质：实验研究与数值计算[J].化工进展，2019,38(2):740-751.LI X, ZHANG P, CHEN G H, et al. Rising behavior of bubbles and interfacial mass transfer in liquid:experimental study and numerical simulation[J]. Chemical Industry and Engineering Progress,2019,38(2):740-751.
• [2]ZHANG Y, HE C, LI P. Numerical investigation of gas-liquid two-phase flow in horizontal pipe with orifice plate[J]. Progress in Nuclear Energy,2021,138:103801.
• [3]李东林，王伟之，韩继康，等.多相流体系中气泡运动特性研究进展[J].应用化工，2023,52(5):1559-1564.LI D L, WANG W Z, HAN J K, et al. Research progress of bubble motion characteristics in multiphase flow system[J]. Applied Chemical Industry,2023,52(5):1559-1564.
• [4]于米满.气浮过程中气泡运动特性数值模拟[D].河北：华北理工大学，2022.YU M M. Numerical simulation of bubbles motion characteristics during air floatation[D]. Heibei:North China University of Science and Technology,2022.
• [5]ZHAO H,WANG J,ZHANG W,et al. Bubble motion and interfacial phenomena during bubbles crossing liquid–liquid interfaces[J].Processes,2019,7(10):719.
• [6]魏列，杜王芳，赵建福，等.微重力条件下部分充液贮箱气液界面波动特性的数值模拟[J].力学学报，2022,54(4):1004-1011.WEI L, DU W F, ZHAO J F, et al. Numerical study on gas-liquid interface waces in partially filled tanks under microgravity condition[J]. Chinese Journal of Theoretical and Applied,2022,54(4):1004-1011.
• [7]王淼.射流场中单个气泡破裂行为的机理和模型[D].北京：北京化工大学，2018.WANG M. Mechanism and model of single bubble breakup in jet flow field[D]. Beijing:Beijing University of Chemical Technology,2018.
• [8]黄彪，黄润航，吕亚飞，等.平板液相横流中气体射流的多尺度旋涡结构分析[J].北京理工大学学报，2023,43(9):942-949.HUANG B, HUANG R H, L??Y F, et al. Multi-scale vortex structure analysis of gas jets in liquid-phase crossflow near the flat wall[J]. Transactions of Beijing Institute of Technology,2023,43(9):942-949.
• [9]CELIS G E O,ROSERO C M P,LOUREIRO J B R,et al. Breakup and coalescence of large and small bubbles in sudden expansions and contractions in vertical pipes[J]. International Journal of Multiphase Flow,2021,137:103548.
• [10]赵腾飞，张华.气泡碰撞过程中形变及破碎现象分析[J].计算物理，2022,39(1):41-52.ZHAO T F,ZHANG H. Analysis of deformation and fragmentation of bubbles during collisions[J]. Chinese Journal of Computational Physics,2022,39(1):41-52.
• [11]丁国栋，陈家庆，蔡小垒，等.文丘里管式微气泡发生器内单气泡碎化行为的数值模拟[J].化工进展，2020,39(7):2590-2598.DING G D,CHEN J Q,CAI X L,et al. Numerical simulation of single bubble breaking behavior in Venturi microbubble generator[J].Chemical Industry and Engineering Progress,2020,39(7):2590-2598.
• [12]张华海，王悦琳，李邦昊，等.湍流中气泡破碎建模与实验研究进展[J].化工学报，2021,72(12):5936-5954.ZHANG H H,WANG Y L,LI B H,et al. Review of bubble breakup modelling and experimental study in turbulent flow[J]. CIESC Journal,2021,72(12):5936-5954.
• [13]YANG L, ZOU L, MA Y, et al. Breakup, coalescence, and migration regularity of bubbles under gas–liquid swirling flow in gas–liquid cylindrical cyclone[J]. Industrial&Engineering Chemistry Research,2020 Jan 14,59(5):2068-2082.
• [14]XU X,WANG S,GONG C,et al. Improvement of the bubble separation through eccentric planar cyclones:Experiments and CFD simulations[J]. Chemical Engineering Research and Design,2023,198:208-220.
• [15]邢继远. CFD-PBM框架下旋流式微泡发生器气泡动力学行为[J].化学工程，2024,52(3):59-65.XING J Y. Bubble dynamics in micro-bubble generator with swirl flow based on CFD-PBM framework[J]. Chemical Engineering,2024,52(3):59-65.
• [16]刘爱虢，李恒文，于浩洋.基于VOF-DPM模型的离心喷嘴中的燃油流动及雾化特征研究[J].热能动力工程，2023,38(11):106-114.LIU A G,LI H W,YU H Y. Study on fuel flow and atomization characteristics in a centrifugal nozzle based on VOF-DPM model[J].Journal of Engineering for Thermal Energy and Power,2023,38(11):106-114.
• [17]VAISHNAVI G N V S,RAMARAJAN J,JAYAVEL S. Numerical studies of bubble formation dynamics in gas-liquid interaction using Volume of Fluid(VOF)method[J]. Thermal Science and Engineering Progress,2023,39:101718.
• [18]MEI Z, CHENG X. Modeling of interfacial area for single deformed bubble based on VOF method[J]. Nuclear Engineering and Design,2022,395:111864.
• [19]陈继尧，王成龙，李洋，等.油水分离旋流器流场分析及设计研究[J].自动化与仪器仪表，2023(12):96-99.CHEN J Y, WANG C L, LI Y, et al. Flow field analysis and design of oil-water separation cyclone[J]. Automation&Instrumentation,2023(12):96-99.
• [20]赵宁，马天壮，卜鹏越，等.基于高速摄像法的气液段塞流特性参数测量[J].力学学报，2024,56(6):1635-1643.ZHAO N, MA T Z, BU P Y, et al. Characteristic parameter measurement of gas-liquid two-phase slug flow based on high-speed camera method[J]. Chinese Journal of Theoretical and Applied,2024,56(6):1635-1643.
• [21]DE CARVALHO NASCIMENTO G,MOREIRA R M,DE MOURA F P,et al. Analysis and prediction of equivalent diameter of air bubbles rising in water[J]. CFD Letters,2024,16(8):33-47.
• [22]曹家颖.湍流场中单个气泡破碎的数值模拟与实验研究[D].北京：北京化工大学，2018.CAO J Y. Numerical simulation and experiment rearch of single bubble breakup in turbulent flow[D]. Beijing:Beijing University of Chemical Technology,2018.
• [23]FOROUSHAN H K, JAKOBSEN H A. Experimental study of single bubble breakage in turbulent flow field:Evaluation of breakage models[J]. Chemical Engineering Science,2022,253:117584.
• [24]刘明，谭磊，曹树良.基于韦伯数的气液混输泵气相直径理论预测模型[J].排灌机械工程学报，2022,40(8):793-799.LIU M,TAN L,CAO S L. Theoretical prediction model of gas-phase diameter in multiphase pump based on Weber number[J]. Journal of Drainage and Irrigation Machinery Engineering,2022,40(8):793-799.
• [25]陈自豪，郭雪岩.高剪切力下气泡聚并与破碎特性的数值研究[J].能源研究与信息，2024,40(1):35-44.CHEN Z H,GUO X Y. Numerical study of bubble coalescence and breakup characteristics under high shear force[J]. Energy Research and Information,40(1):35-44.
• [26]SHI W, YANG J, LI G, et al. Computational fluid dynamics–population balance modeling of gas–liquid two-phase flow in bubble column reactors with an improved breakup kernel accounting for bubble shape variations[J]. Heat transfer engineering, 2019,41(15/16):1414-1430.
• [27]SHI W,YANG J,LI G,et al. Modelling of breakage rate and bubble size distribution in bubble columns accounting for bubble shape variations[J]. Chemical Engineering Science,2018,187:391-405.
• [28]SOLSVIK J. Turbulence modeling in the wide energy spectrum:explicit formulas for Reynolds number dependent energy spectrum parameters[J]. European Journal of Mechanics-B/Fluids,2017,61:170-176.
• [29]CARNEIRO L E M,MARTINS G S O,ROSERO C M P,et al. Large and small bubble breakup in gas–liquid centrifugal pumps[J].International Journal of Multiphase Flow,2024,176:104830.