基于COMSOL仿真解释“隐形的瓶子”圆柱绕流现象
Explain the Phenomenon of Flow around the Cylinder of “Invisible Bottle” Based on COMSOL Multiphysics
DOI: 10.12677/MOS.2021.103081, PDF,   
作者: 聂文慧：沈阳师范大学物理科学与技术学院，辽宁 沈阳
关键词: 圆柱绕流；雷诺数；COMSOL Multiphysics；数值模拟；IYPT；Flow around a Cylinder； Reynolds Number； COMSOL Multiphysics； The Numerical Simulation； IYPT
摘要: 针对瓶子后方蜡烛熄灭现象，将所研究的流体空气看作不可压缩流体，引入二维粘性不可压缩流体的Navier-Stokes方程，利用COMSOL Multiphysics软件构建圆柱绕流仿真模型，讨论影响瓶子后方蜡烛熄灭的因素。对雷诺数、蜡烛位置、障碍物形状不同影响因素情况下圆柱绕流模型进行数值模拟，并给出三维情况下的圆柱绕流仿真模型。
Abstract: Aiming at the extinguishing phenomenon of the candle behind the bottle, the studied fluid air is regarded as an incompressible fluid, and the Navier-Stokes equation of two-dimensional incom-pressible viscous flow is introduced. The simulation model of the flow around a cylinder is con-structed by using COMSOL Multiphysics software, and the factors affecting the extinguishment of the candle behind the bottle are discussed. The numerical simulation of the flow model around a cylin-der is carried out under the different influence factors of Reynolds number, candle position and ob-stacle shape, and the three-dimensional simulation model of the flow around the cylinder is given.
文章引用：聂文慧. 基于COMSOL仿真解释“隐形的瓶子”圆柱绕流现象[J]. 建模与仿真, 2021, 10(3): 825-834. https://doi.org/10.12677/MOS.2021.103081

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