Turbulence-induced vibration of tube bundles subjected to cross-flow and loose support

Jiang, Lai; Yang, Shihao; Tan, Tiancai; Gao, Lixia; Sun, Lei; Li, Pengzhou

doi:10.1016/j.ijpvp.2021.104601

Cited by 6 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An elastic tube bundle heat exchanger can enhance heat transfer by inducing elastic tube bundle vibration with fluid. Still, tube bundle vibration will cause fatigue damage, so the design reasonably of elastic tube bundle structure is essential [19,20]. In the design of the elastic tube bundle heat exchanger, the fatigue life of the internal tube bundle should be taken into account.…”

Section: Numerical Simulationmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Numerical Simulationmentioning

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

View full text Add to dashboard Cite

show abstract

“…It is noted that when the slender cylinder/pipe has loose supports, the flow-induced vibration behavior becomes complex because of impact and friction forces due to the loose support, which is one of the most important reasons causing wear failures of the cylinder [25]. Therefore, many studies have been performed to explore nonlinear dynamical behviors of cylinders with loose supports in heat exchangers over the past few decades [25][26][27][28][29][30][31][32][33][34]. Experimental investigations [1,12,31] and numerical simulations [26,27] are included.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, many studies have been performed to explore nonlinear dynamical behviors of cylinders with loose supports in heat exchangers over the past few decades [25][26][27][28][29][30][31][32][33][34]. Experimental investigations [1,12,31] and numerical simulations [26,27] are included. For instance, Park et al [26] concerned the study of the vibrational behavior of a fuel rod supported by elastoplastic supports.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Balaji et al [30] studied the contact between the loose support and the tube when the stiffness of loose support is asymmetric. Lai et al [31] presented a mathematical model of a single flexible tube in tube bundles subjected to turbulence random force and loose support. In addition, Lu et al [32] investigated dynamic characteristics of tube bundles with crack subjected to cross-flow and nonlinear loose supports.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear vibrations and wear predictions of slender cylinders with loose support subjected to axial flows

He,

Xing,

Dai

et al. 2024

Nonlinear Dyn

View full text Add to dashboard Cite

Flow-induced vibration of fuel rods subjected to axial flows frequently appears in nuclear engineering, which has been a significant scientific problem still unsolved. This paper simplifies the fuel rod as a slender cylinder with loose support in axial flows, and explores nonlinear dynamics of the slender cylinder through theoretical modeling. The dynamical model is constructed with consideration of impact and friction forces attributed by the loose support. The results show that the flutter critical flow velocity and wear rate are dependent on clearance size and position of the loose support. The flow velocity range of buckling becomes narrower while the range for flutter becomes wider with the increase of clearance size. The flow velocity range for buckled behavior is widened, the flutter flow speed range is reduced as the clearance position is varied from upward end to downward end of the cylinder. It is indicated that there are optimal values for clearance size and position of the loose support where the flutter critical flow velocity is much higher and the wear rate is lowest. The present study can provide a theoretical basis for predicting flow-induced vibrations and designing the loose support for fuel rods in the nuclear engineering.

show abstract

“…Thus, turbulence is the main source of fluctuations in measurements. In particular, the noise of electronic devices can be neglected in comparison with the noise caused by flow turbulence [6][7].…”

Section: Introductionmentioning

confidence: 99%

Anti-vortex device for stabilization of measuring parameters in apparatus for biofuel production

Башмур

Shvetsov

Tynchenko

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The article deals with the problem of metrological support of innovative technologies, in particular, related to the production of promising renewable energy sources such as biofuels. In the process of biofuel separation, it is very important to monitor various technological parameters: pressure, flow, liquid level, temperature, etc. For this purpose, measuring devices are used as part of the automation of technological processes. At the same time, flow turbulence can have a significant impact on the accuracy of the readings of these devices. Often, the transition from laminar to turbulent flow is associated with the formation of a vortex when overcoming the flow of various constrictions at the outlet of the installations. The paper considers a method for preventing the formation of vortices through the use of a anti-vortex device (AVD). Computer modeling of the fluid flow in the SolidWorks software package was carried out in order to determine the optimal geometric characteristics of the AVD. In particular, the influence of the gap in the AVD and its plate diameter was studied.

show abstract

Turbulence-induced vibration of tube bundles subjected to cross-flow and loose support

Cited by 6 publications

References 24 publications

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

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

Nonlinear vibrations and wear predictions of slender cylinders with loose support subjected to axial flows

Anti-vortex device for stabilization of measuring parameters in apparatus for biofuel production

Contact Info

Product

Resources

About