Linearized Formulation for Fluid-Structure-Interaction for Rigid-Body Motion

被引：0

作者：

Negi, Prabal S. ^{[1
,2
]}

Hanifi, Ardeshir ^{[1
,2
]}

Henningson, Dan S. ^{[1
,2
]}

机构：

[1] KTH Royal Inst Technol, Dept Engn Mech, Linne Flow Ctr, Stockholm, Sweden

[2] KTH Royal Inst Technol, Swedish E Sci Res Ctr SeRC, Stockholm, Sweden

来源：

IUTAM LAMINAR-TURBULENT TRANSITION | 2022年 / 38卷

基金：

欧洲研究理事会;

关键词：

STABILITY ANALYSIS; NUMERICAL-SIMULATION; FLOW; CYLINDER; TRANSPIRATION; INSTABILITY; BOUNDARY;

D O I：

10.1007/978-3-030-67902-6_39

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A linearized formulation for fluid-structure-interaction problems exhibiting rigid-body-motion is presented. The linearized equations are evaluated on a stationary grid and require no mesh motion. Numerical tests are performed to validate the derived formulation by comparing the time evolution between the linear and non-linear equations. In all cases both the growth rate and angular frequency of the instability matches to within 0.1% accuracy. The derived formulation is used to predict the phenomenon of symmetry breaking for a rotating cylinder with an attached splitter-plate, the onset of aeroelastic pitch-oscillations for a NACA0012 airfoil at transitional Reynolds numbers, and investigate the structural sensitivity of the least stable eigenvalue for an oscillating cylinder.

引用

页码：459 / 468

页数：10

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