A preconditioned Navier–Stokes method for two-phase flows with application to cavitation prediction

Kunz, Robert F.; Boger, David A.; Stinebring, David R.; Chyczewski, Thomas S.; Lindau, Jules W.; Gibeling, H. J.; Sankaran, Venkateswaran; Govindan, T. R.

doi:10.1016/s0045-7930(99)00039-0

Cited by 728 publications

(324 citation statements)

References 11 publications

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“…So far, most efforts have been focused on correctly evaluating Γ [89][90][91][92], the formulation of which represents the main difficulty in this procedure (this term is absent in barotropic models). Various heuristic expressions can be found for term Γ in the literature: the formulae are usually distinct for evaporation and condensation processes.…”

Section: )/[P(t) + B]} Wherementioning

confidence: 99%

Fluid dynamics of acoustic and hydrodynamic cavitation in hydraulic power systems

Ferrari¹

2017

Proc. R. Soc. A.

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Cavitation is the transition from a liquid to a vapour phase, due to a drop in pressure to the level of the vapour tension of the fluid. Two kinds of cavitation have been reviewed here: acoustic cavitation and hydrodynamic cavitation. As acoustic cavitation in engineering systems is related to the propagation of waves through a region subjected to liquid vaporization, the available expressions of the sound speed are discussed. One of the main effects of hydrodynamic cavitation in the nozzles and orifices of hydraulic power systems is a reduction in flow permeability. Different discharge coefficient formulae are analysed in this paper: the Reynolds number and the cavitation number result to be the key fluid dynamical parameters for liquid and cavitating flows, respectively. The latest advances in the characterization of different cavitation regimes in a nozzle, as the cavitation number reduces, are presented. The physical cause of choked flows is explained, and an analogy between cavitation and supersonic aerodynamic flows is proposed. The main approaches to cavitation modelling in hydraulic power systems are also reviewed: these are divided into homogeneous-mixture and twophase models. The homogeneous-mixture models are further subdivided into barotropic and baroclinic models. The advantages and disadvantages of an implementation of the complete Rayleigh-Plesset equation are examined.

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Section: )/[P(t) + B]} Wherementioning

confidence: 99%

Fluid dynamics of acoustic and hydrodynamic cavitation in hydraulic power systems

Ferrari¹

2017

Proc. R. Soc. A.

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“…Numerical simulations using LES approach, Kunz cavitation model (Kunz et al, 2000), and VOF method are adopted to present more details and mechanisms at a typical condition where the wall is close to the projectile. The evolution process and characteristics of cavitation around the axisymmetric projectile near the wall presented using numerical simulation are in good agreement with the experimental results.…”

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confidence: 99%

Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding

Wang

Huang

et al. 2017

Ocean Engineering

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“…By using the cavitation model proposed by Kunz et al [7], Medvitz et al [3] calculated the cavitating flow in a centrifugal pump at small cavitation numbers. They analysed the reason why the pump head drops at small cavitation numbers for the off-designed condition, but the assumption of the potential flow in their calculations limits their methods used in more application.…”

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confidence: 99%

Cavitation flow simulation for a centrifugal pump at a low flow rate

et al. 2013

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A preconditioned Navier–Stokes method for two-phase flows with application to cavitation prediction

Cited by 728 publications

References 11 publications

Fluid dynamics of acoustic and hydrodynamic cavitation in hydraulic power systems

Fluid dynamics of acoustic and hydrodynamic cavitation in hydraulic power systems

Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding

Cavitation flow simulation for a centrifugal pump at a low flow rate

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