Engineering Mechanics

Proceedings Vol. 30 (2024)

ENGINEERING MECHANICS 2024

Copyright © 2024 Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno

 

Zeman R., Rudolf P.
pages 326 - 329, full text

This article compares three Venturi nozzle geometries using CFD to determine the best geometry variant for enhanced cavitation and pressure pulsations. Simulations were performed using two different turbulence models, a hybrid SBES and a RANS model SST k-ω. Comparisons were made from the time recording of the vapor volume and pressure monitors. Changing the turbulence model led to different results, and therefore the outputs of the more complex SBES model were considered as valid. Venturi nozzle with zero throat length was found to be the best choice at the selected boundary conditions for vapor phase formation while increasing amplitudes of pressure pulsations.

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