Simulation of flow-induced oscillations of a rectangular bluff body in incompressible, turbulent flow

被引：0

作者：

Bunge, U ^{[1
]}

Gurr, A ^{[1
]}

Thiele, F ^{[1
]}

机构：

[1] Tech Univ Berlin, Hermann Fottinger Inst Fluid Mech, Dept Transport & Appl Mech, Berlin, Germany

来源：

PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON FLUID STRUCTURE INTERACTION, AEROELASTICITY, FLOW INDUCED VIBRATION AND NOISE, PTS A AND B | 2002年

关键词：

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The incompressible flow around a rectangular body with a length to height ratio of L/H = 2 and its flow-induced oscillatory behavior is numerically investigated at different Re-numbers in a range between 1 to 6(.)10(4). The body has one degree of freedom perpendicular to the mean-flow direction with a linear spring and linear damping. To compute the flow a finite-volume, based Navier-Stokes CFD-code is used, which is enhanced by a finite-difference based algorithm to solve the vibration differential equation. Target is the numeric simulation of a incident flow velocity where resonance occurs and the exact determination of the physical mechanisms especially in the flowing medium. Particular substantial parameters of the total model, e.g. turbulence modeling, time step or grid, which exert influence on the quality of the simulation are examined. To achieve this aim simulations with steady and oscillating body are compared with experimental data and deviations are analyzed.

引用

页码：421 / 428

页数：8

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