基于光滑粒子流体力学的不同槽形晃动研究

Q2 Mathematics
None Andi Trimulyono, None Suci Utami, None Deddy Chrismianto, None Parlindungan Manik
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引用次数: 0

摘要

晃动是运动槽中共振流体的剧烈运动;当流体运动并与储罐相互作用时,这种相互作用产生的动压力会导致流体与储罐壁发生较大的变形。在本研究中,采用棱柱形、矩形、筒形、球形以及填充率为25%和50%的新型油箱五种不同的油箱模型,进行了晃动的三维数值模拟。横摇中的强迫振荡运动使用的频率为1.04 Hz和1.34 Hz。运动幅度为8.66°。一个压力传感器用于测量罐体中部的动态压力。由于晃动处理的是大的变形和不连续性,因此颗粒法适合应用。本研究采用基于弱可压缩SPH (WCSPH)的光滑粒子流体力学方法。SPH是一种拉格朗日无网格方法,称为无网格计算流体动力学。开源SPH求解器5.0版本用于再现不同槽形的晃动;此外,使用Blender 2.92版本中的visualspphysics插件执行高级可视化。晃动可视化比传统的SPH后处理更加逼真和吸引人。研究结果表明,不同的水箱形状对动压力和水动力的减小值有影响。研究发现,实用的罐型是管式罐和新型罐,动压值分别降低9%和11%,水动力值分别降低36%和48%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Sloshing in Different Tank Shapes using Smoothed Particle Hydrodynamics
Sloshing is the violent motion of a resonant fluid in a moving tank; when the fluid moves and interacts with the tank, the dynamic pressure from such an interaction can cause large fluid deformations with tank walls. In this study, a 3D numerical simulation of sloshing was carried out with five variations of the tank model, i.e., prismatic, rectangular, tube, spherical, and the new model tank with a filling ratio of 25% and 50%. Forced oscillation motion in a roll used frequencies 1.04 Hz and 1.34 Hz. The amplitude of movement was 8.66°. One pressure sensor was used to measure dynamic pressure in the mid of the tank. Because sloshing deals with large deformation and discontinuities, the particle method was suitable for the application. This study used smoothed particle hydrodynamics based on weakly compressible SPH (WCSPH). SPH is a Lagrangian meshless method known as mesh-free computational fluid dynamics. Open-source SPH solver version 5.0 was used to reproduce sloshing in different tank shapes; in addition, advanced visualization was performed using the VisualSPHysics add-on in Blender version 2.92. The sloshing visualization is more realistic and attractive than conventional SPH post-processing. The results of this study indicate that different tank shapes influence reducing the value of dynamic pressure and hydrodynamic force. It is found that a practical tank shape is a tube tank and a new model tank with a reduced dynamic pressure value of 9% and 11% and a reduced hydrodynamic force value of 36% and 48%.
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来源期刊
CFD Letters
CFD Letters Chemical Engineering-Fluid Flow and Transfer Processes
CiteScore
3.40
自引率
0.00%
发文量
76
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