南华大学学报（自然科学版）2016，Vol.30Issue(2)：59-64,6.
轴向流中平行简支弹性薄板的大挠度流固耦合的数值模拟
Fluid-structure Interaction Simulation of Simply Supported Parallel Plate with Large Deformation Subjected to Axial Flow
王凡 1郭长青 1郑坤1
作者信息
- 1. 南华大学 城市建设学院，湖南 衡阳421001
- 折叠
摘要
Abstract
The dynamic response and flow field characteristics of fluid structure interaction system of simply-supported elastic thin plates with large deformation subjected to axial flow are studied numerically. The structural dynamics equation is discretized by displacement-based finite elements.The fluid domain is governed by two-dimensional incompressible vis-cous Navier-Stokes equations,which are discretized by the finite volume method. Based on this and combined with dynamic grid control technology, the two-dimensional numerical model of simply-supported elastic thin plate in the axial flow with two-way fluid-structure interaction is built.By using this numerical model,the flow-induced vibration characteristics of a single plate as well as the vibration stability of the large deflection structure are stud-ied,Pitchfork bifurcation curve and Hopf bifurcation curve of nonlinear system structure have been obtained respectively. The flow vibration characteristics are gained through the numerical simulation of two simply supported parallel plate with different spacing and con-stant axial flow velocity.关键词
弹性薄板/大挠度/振动响应/流场特性/双向流固耦合Key words
elastic plates/large deformation/dynamic behavior/flow field characteristics/two-way fluid-structure interaction分类
数理科学引用本文复制引用
王凡,郭长青,郑坤..轴向流中平行简支弹性薄板的大挠度流固耦合的数值模拟[J].南华大学学报（自然科学版）,2016,30(2):59-64,6.
