Flow-Induced Vibration of Tubes in Cross-Flow

Abstract

This paper presents an unsteady-flow theory for flow-induced vibration of tubes in cross-flow. It includes a general description of motion-dependent fluid forces, characteristics of fluid-force coefficients, and mathematical models. Detailed results are presented for the constrained mode in the lift direction for various tube arrangements.

Fluid Damping Controlled Instability of Tubes in Crossflow

“…Recently, extensive tests of motion-dependent fluid forces have been performed (Chen et al 1994, 1995, 1996, Zhu et al 1995, 1996. Using the unsteady fluid forces and unsteady flow theory, it will provide some answers to the frequently asked questions on fluidelastic instability.…”