Tag: FLOW-INDUCED VIBRATION
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STV-17 Parallel Flow-induced Tube Vibration in Shell-and-tube Heat Exchangers
March 27, 2026
Tube vibration in parallel flow arises from unsteady pressures occurring on tube surfaces. Vibration is predicted via traditional empirical correlations or via random vibration theory. For both approaches, however, the forcing function is most accurately determined by in situ testing. The unsteady pressures in industrial flows, added to those in the...
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TT-31 Beware of flow obstructions in inlet and outlet regions
February 14, 2023
Component: Xist, Xvib Date posted: 14 February 2023 Flow obstructions in the inlet and outlet regions can invalidate the Xist bundle entrance and exit velocities and thus impact the rho-V2 calculations. The Xist vibration analysis for shell and bundle entrance and exit areas is performed using the TEMA RGP-RCB-4.6.2 definitions. The...
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Measuring sound...with a phone?
July 12, 2018
Sound propagates as pressure fluctuates in fluids; measuring sound means converting these fluctuations into electrical signals with a transducer. A sound level meter—a pressure transducer attached to a voltmeter—has often been used to record noise levels around a heat exchanger experiencing acoustic vibration. The human ear responds to pressure fluctuations over...
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