Fluidelastic instability of tube arrays in nonuniform flow: Effect of multimode coupling

Zhang, Mingjie; Øiseth, Ole

doi:10.1016/j.jfluidstructs.2022.103545

Cited by 3 publications

(1 citation statement)

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“…The results show that the low-pressure zone formed by string vibration can improve heat transfer. Zhang and Øiseth [15] analyzed the effect of multimode coupling on the fluid elastic instability of tube arrays in a nonuniform flow and figured out conditions under which the multimode coupling effect becomes significant. Longatte et al [16] proposed a numerical model of fluid-induced vibration using the LAE method.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Flow-Induced Vibration of Heat Exchanger Tube Bundles Based on Fluid-Structure Coupling Dynamics

Chen

Zhang

Huang

et al. 2022

Modelling and Simulation in Engineering

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According to the needs generated by the industry, there is an urgent need to investigate the flow vibration response law of the elastic tube bundle of heat exchangers subjected to the coupling effect of shell and tube domain at different inlet flow velocities. In this paper, based on the continuity equation, momentum equation, turbulence model, and dynamic grid technology, the vibration response of the elastic tube bundle under the mutual induction of shell and tube fluids is studied by using pressure-velocity solver and two-way fluid-structure coupling (FSC) method. The results show that the monitoring points on the same connection block have the same vibration frequency, while the vibration amplitude is different. Monitoring point A is the most deformed by the impact of fluid in the shell and tube domain. When the inlet velocity( v shell = v tube = 0.15 , 0.4, 0.5 m/s) of shell and tube is low, the amplitude of tube bundle vibration in the Y direction is greater than that in X and Z direction, and the tube bundle produces periodic vibration in the vertical direction. The vibration equilibrium position of the tube bundle along the shell flow direction gradually moves up with the increase of the inlet velocity. The amplitude in the Y -direction of the elastic bundle decreases with the increase of shell-side and tube-side velocity. The relationship between the vibration amplitude in the Y direction and the entrance velocity is a linear function.

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Section: Introductionmentioning

confidence: 99%