Recent investigations of bubbly cavitating nozzle flows using the polytropic law for the partial gas pressure have shown flow instabilities that lead to flashing flow solutions. Here, we investigate the stabilizing effect of thermal damping on these instabilities. For this reason we consider the energy equation within the bubble, assumed to be composed of vapor and gas, in the uniform pressure approximation with low vapor concentration. The partial vapor pressure is fixed by the vapor saturation pressure corresponding to the interface temperature, which is evaluated by assuming the thin boundary layer approximation within the liquid. Consequently, the partial gas pressure is evaluated by its relation to the heat flux through the interface in the uniform pressure approximation. The model is then coupled to the steady-state cavitating nozzle flow equations replacing the polytropic law for the partial gas pressure. The instabilities found in steady cavitating nozzle flows are seen to be stabilized by thermal damping with or without the occurrence of bubbly shock waves.
Skip Nav Destination
Article navigation
December 2002
Additional Technical Papers
Thermal Damping in Cavitating Nozzle Flows
Can F. Delale
Can F. Delale
Department of Aeronautics and Astronautics, Istanbul Technical University, 80626 Maslak, Istanbul
and Tu¨bı´tak Feza Gu¨rsey Institute, P.O. Box 6, 81220 Cengelko¨y, Istanbul, Turkey
Search for other works by this author on:
Can F. Delale
Department of Aeronautics and Astronautics, Istanbul Technical University, 80626 Maslak, Istanbul
and Tu¨bı´tak Feza Gu¨rsey Institute, P.O. Box 6, 81220 Cengelko¨y, Istanbul, Turkey
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division July 27, 2001; revised manuscript received May 29, 2002. Associate Editor: Y. Matsumoto.
J. Fluids Eng. Dec 2002, 124(4): 969-976 (8 pages)
Published Online: December 4, 2002
Article history
Received:
July 27, 2001
Received:
May 29, 2002
Online:
December 4, 2002
Citation
Delale, C. F. (December 4, 2002). "Thermal Damping in Cavitating Nozzle Flows ." ASME. J. Fluids Eng. December 2002; 124(4): 969–976. https://doi.org/10.1115/1.1511163
Download citation file:
Get Email Alerts
Switching Events of Wakes Shed From Two Short Flapping Side-by-Side Cylinders
J. Fluids Eng (May 2025)
Related Articles
Stability Analysis of One-Dimensional Steady Cavitating Nozzle Flows With Bubble Size Distribution
J. Fluids Eng (June,2000)
Steady-State Cavitating Nozzle Flows With Nucleation
J. Fluids Eng (July,2005)
Stability Criteria of the Steady Flow of a Liquid Containing Bubbles Along a Nozzle
J. Fluids Eng (December,2001)
Evaluation of Rayleigh–Plesset Equation Based Cavitation Models for Squeeze Film Dampers
J. Tribol (April,2009)
Related Proceedings Papers
Related Chapters
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
A Reduced Order Gas Pressure Law for Single Acoustic Cavitation Bubbles
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Numerical Investigation of the Dynamics of Pressure Loading on a Solid Boundary from a Collapsing Cavitation Bubble
Proceedings of the 10th International Symposium on Cavitation (CAV2018)