气液耦合涡流的动力学建模与振动演化机理
PDF下载 (136)方可沁,蔡建平.气液耦合涡流的动力学建模与振动演化机理[J].宁波大学学报(理工版),2025,38(1):45-53.DOI:10.20098/j.cnki.1001-5132.2024.0515
FANG Keqin,CAI Jianping.Dynamic modeling and vibration evolution mechanism of the gas-liquid coupled vortex flow[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(1):45-53.DOI:10.20098/j.cnki.1001-5132.2024.0515
| Title: | Dynamic modeling and vibration evolution mechanism of the gas-liquid coupled vortex flow |
| 作者: | 方可沁, 蔡建平 |
| Author(s): | FANG Keqin, CAI Jianping |
| 关键词: | 气液耦合涡流; 流固耦合; 振动特征; 临界贯穿状态; 水电能源转换 |
| Keywords: | gas-liquid coupling vortex flow (GCVF); fluid-structure coupling; vibration characteristic; critical penetrating state; hydropower energy conversion |
| 分类号: | TV744 |
| DOI: | 10.20098/j.cnki.1001-5132.2024.0515 |
| 文献标识码: | A |
| 摘要: | 潮汐能电站运行过程中水电能量转换的稳定性至关重要. 低水头水电站容易产生气液耦合涡流(Gas-liquid Coupling Vortex Flow, GCVF), 形成不规则的随机激波振动, 严重破坏水轮机的性能和输入流的稳定性. GCVF临界贯穿状态识别对于提高水电转换效率和设备寿命至关重要, 但是由于气液耦合输运和流体非线性激励, GCVF冲击振动特征检测仍面临重大挑战. 为此, 提出一种基于水平集和Flügge壳体理论的流固耦合建模与求解方法, 揭示GCVF临界贯穿状态下的冲击振动演化机理. 基于水平集方法和Flügge双向流固耦合原理, 建立GCVF冲击振动动力学模型, 并结合动态网格技术优化流固耦合求解过程, 探究GCVF临界贯穿过程的输运规律和振动演变机理. 结果表明, 该模型能够较好地揭示GCVF临界贯穿状态下的动态演化规律, GCVF冲击振动表现出随机能量峰值和复杂的非线性脉冲特征. |
| Abstract: | To meet the increasing electricity demand, hydropower energy conversion stability is essential in the operation process of tidal power plants. A low-head hydropower station can easily produce gas-liquid coupling vortex flow (GCVF) and form irregular shock wave vibrations, seriously damaging turbine performance and input flow stability. Identifying the critical penetration state is crucial to improving the hydropower conversion efficiency and equipment lifetime. However, the detection of GCVF shock vibration characteristics still faces significant challenges due to the gas-liquid coupled transport and the nonlinear excitation of fluid. To solve the above problems, this paper proposes a fluid-structure coupling modeling and solution method, based on the level set and Flügge shell theory, to reveal the GCVF shock vibration evolution mechanism under the critical penetration state. Based on the level set method and Flügge bidirectional fluid-structure coupling principle, the GCVF shock vibration dynamic model is set up. Dynamic mesh technology is utilized to optimize the fluid-structure coupling solution process, based on which the transport law and vibration evolution mechanism of the GCVF critical penetration process are obtained. Research results demonstrate that the proposed model and method can well reveal the GCVF evolution regularities in the critical penetration state, and the GCVF shock vibration is capable of showing the energy peak and complex nonlinear pulse characteristics. |
| 参考文献 /References: | [1].SOTO-RIVAS K, RICHTER D, ESCAURIAZA C. Flow effects of finite-sized tidal turbine arrays in the Chacao Channel, Southern Chile[J]. Renewable Energy, 2022, 195:637-647. [2].LI L, TAN D P, WANG T, et al. Multiphase coupling mechanism of free surface vortex and the vibration-based sensing method[J]. Energy, 2021, 216:119136. [3].CRISTOFANO L, NOBILI M, ROMANO G P, et al. Investigation on bathtub vortex flow field by particle image velocimetry[J]. Experimental Thermal and Fluid Science, 2016, 74:130-142. [4].ZHENG M R, HAN D, PENG T, et al. Numerical investigation on flow induced vibration performance of flow-around structures with different angles of attack[J]. Energy, 2022, 244:122607. [5].KAN K, XU Y H, LI Z X, et al. Numerical study of instability mechanism in the air-core vortex formation process[J]. Engineering Applications of Computational Fluid Mechanics, 2023, 17:2156926. [6].YAN W J, FENG Z Q, YANG W, et al. Bayesian inference for the dynamic properties of long-span bridges under vortex-induced vibration with Scanlan’s model and dense optical flow scheme[J]. Mechanical Systems and Signal Processing, 2022, 174:109078. [7].SUI G D, SHAN X B, HOU C W, et al. An underwater piezoelectric energy harvester based on magnetic coupling adaptable to low-speed water flow[J]. Mechanical Systems and Signal Processing, 2023, 184: 109729. [8].TAN D P, ZHANG L B. A WP-based nonlinear vibration sensing method for invisible liquid steel slag detection[J]. Sensors and Actuators B: Chemical, 2014, 202:1257- 1269. [9].TAN D P, LI P Y, JI Y X, et al. SA-ANN-based slag carry-over detection method and the embedded WME platform[J]. IEEE Transactions on Industrial Electronics, 2013, 60(10):4702-4713. [10].LI L, GU Z H, XU W X, et al. Mixing mass transfer mechanism and dynamic control of gas-liquid-solid multiphase flow based on VOF-DEM coupling[J]. Energy, 2023, 272:127015. [11].LI L, QI H, YIN Z C, et al. Investigation on the multiphase sink vortex Ekman pumping effects by CFD- DEM coupling method[J]. Powder Technology, 2020, 360: 462-480. [12].TAN D P, LI L, YIN Z C, et al. Ekman boundary layer mass transfer mechanism of free sink vortex[J]. International Journal of Heat and Mass Transfer, 2020, 150:119250. [13].PARK I S, SOHN C H. Experimental and numerical study on air cores for cylindrical tank draining[J]. International Communications in Heat and Mass Transfer, 2011, 38(8):1044-1049. [14].SON J H, SOHN C H, PARK I S. Numerical study of 3D air core phenomenon during liquid draining[J]. Journal of Mechanical Science and Technology, 2015, 29(10):4247- 4257. [15].TAKÁCS G, ONDREJKOVIČ K, HULKÓ G. A low-cost non-invasive slag detection system for continuous casting[J]. IFAC Papers on Line, 2017, 50(1):438-445. [16].NADERI V, FARSADIZADEH D, LIN C, et al. A 3D study of an air-core vortex using HSPIV and flow visualization[J]. Arabian Journal for Science and Engineering, 2019, 44(10):8573-8584. [17].ZHANG Q, WANG J, ZHANG Y Z, et al. Numerical simulation and manifold learning for the vibration of molten steel draining from a ladle[J]. Journal of Vibroengineering, 2013, 15(2):549-557. [18].SONG X J, CHAO L, WANG Z W. Prediction on the pressure pulsation induced by the free surface vortex based on experimental investigation and Biot-Savart Law[J]. Ocean Engineering, 2022, 250:110934. [19].TAN D P, NI Y S, ZHANG L B. Two-phase sink vortex suction mechanism and penetration dynamic characteristics in ladle teeming process[J]. Journal of Iron and Steel Research International, 2017, 24(7):669-677. [20].ZHENG G A, GU Z H, XU W X, et al. Gravitational surface vortex formation and suppression control: a review from hydrodynamic characteristics[J]. Processes, 2023, 11(1):42. [21].SINGH N K, PREMACHANDRAN B. A coupled level set and volume of fluid method on unstructured grids for the direct numerical simulations of two-phase flows including phase change[J]. International Journal of Heat and Mass Transfer, 2018, 122:182-203. [22].DU X Z, ZHANG M, CHANG H, et al. Micro windmill piezoelectric energy harvester based on vortex-induced vibration in tunnel[J]. Energy, 2022, 238:121734. [23].YU M L, LIU K, ZHU W D. A high-order partitioned fluid-structure interaction framework for vortex-induced vibration simulation[J]. Applied Mathematical Modelling, 2022, 105:321-339. [24].LI L, TAN Y F, XU W X, et al. Fluid-induced transport dynamics and vibration patterns of multiphase vortex in the critical transition states[J]. International Journal of Mechanical Sciences, 2023, 252:108376. [25].ZHAO K Q, FAN J, WANG B. Analytical and experimental study of the vibro-acoustic behavior of a semi-submerged finite cylindrical shell[J]. Journal of Sound and Vibration, 2020, 482:115466. [26].DAI H L, ABDELKEFI A, WANG L. Modeling and nonlinear dynamics of fluid-conveying risers under hybrid excitations[J]. International Journal of Engineering Science, 2014, 81:1-14. [27].LI L, LU B, XU W X, et al. Mechanism of multiphase coupling transport evolution of free sink vortex[J]. Acta Physica Sinica, 2023, 72(3):182-195. [28].ZHANG P, RAP Y, XIE Y, et al. Turbulent flow structure and heat transfer mechanisms over surface vortex structures of micro V-shaped ribs and dimples[J]. International Journal of Heat and Mass Transfer, 2021, 178:121611. |
| 备注/Memo: | 收稿日期: 2024−05−23. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 第一作者: 方可沁, 硕士研究生, 主要研究方向: 水利发电漩涡. E-mail: fkeqin18@163.com *通信作者: 蔡建平, 博士/讲师, 主要研究方向: 非线性和自适应控制. E-mail: z2421711773@163.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
