Comparison of mass transfer models for the numerical prediction of sheet cavitation around a hydrofoil

Morgut, Mitja; Nobile, Enrico; Biluš, Ignacijo

doi:10.1016/j.ijmultiphaseflow.2011.03.005

Cited by 158 publications

(81 citation statements)

References 4 publications

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“…Following the satisfactory results for the hydrofoil [9] where good agreement was found between prediction and measurements and no significant differences were observed between the different models, the mass transfer models were applied to the Venturi section geometries. For the purpose of steady flow study, the Venturi type test section geometry used by Barre [4] was adopted in the first step.…”

Section: Results Validation On the Venturi Sectionmentioning

confidence: 99%

“…To properly tune the different mass transfer models, and consequently to compare and use them, a calibration strategy based on the modeFRONTIER 4.2 optimisation system was developed and presented in [9]. The optimisation results are summarised in the table below.…”

Section: The Calibration Processmentioning

confidence: 99%

“…The present contribution follows the previous numerical optimisation of homogeneous cavitation transport model parameters [9] for the numerical prediction of attached sheet cavitation around a hydrofoil. In previous study, different cavitation transport models were tuned for external, steady flow around hydrofoil NACA66(MOD).…”

Section: Introductionmentioning

confidence: 99%

“…In previous study, different cavitation transport models were tuned for external, steady flow around hydrofoil NACA66(MOD). At the second stage, the cavitation pattern and pressure coefficient distribution were compared to experimental values for different cavitation coefficient values at different angles of attack [9]. Following the satisfying results of the analysed examples, the same models are here applied to the case of internal flow in the Venturi geometry for the steady [4] and the unsteady flow [10], respectively.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Simulation of Sheet and Cloud Cavitation with Homogenous Transport Models

Biluš¹,

Morgut²,

Nobile³

2013

Int. j. simul. model.

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This paper introduces the results of correlated numerical models study carried out to analyse cavitating flows. The flow field of steady attached sheet cavitation and the case of unsteady cavitation behaviour with quasi-periodic fluctuations is analysed with different homogenous cavitation transport models. Three models in form of additional transport equations for water volume fraction are combined with the RANS (Reynolds Averaged Navier-Stokes) equations and calibrated for the cavitating flow around the NACA66 (MOD) hydrofoil by means of an optimisation strategy. In the second stage, the optimised models are applied to the case of internal unsteady cavitating flow in Venturi type section.The results obtained using calibrated models are very close to each other, and agree well with the available experimental data, indicating that the optimisation process is recommended as a general -first step tool for mathematical models validation.

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Section: Results Validation On the Venturi Sectionmentioning

confidence: 99%

Section: The Calibration Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simulation of Sheet and Cloud Cavitation with Homogenous Transport Models

Biluš¹,

Morgut²,

Nobile³

2013

Int. j. simul. model.

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“…Examples of recent review articles on this topic can be found in [8,10,14,15]. The selection of an appropriate model for cavitating flow simulation is very delicate.…”

Section: State Of the Artmentioning

confidence: 99%

Investigation of Cavitation Models for Steady and Unsteady Cavitating Flow Simulation

Tran¹,

Nennemann²,

Vu³

et al. 2015

International Journal of Fluid Machinery and Systems

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The objective of this paper is to evaluate the applicability of mass transfer cavitation models and determine appropriate numerical parameters for cavitating flow simulations. CFD simulations were performed for a NACA66 hydrofoil at cavitation numbers of 1.49 and 1.00, corresponding to steady sheet and unsteady sheet/cloud cavitating regimes using the Kubota and Merkle cavitation models. The Merkle model was implemented into CFX by User Fortran code. The Merkle cavitation model is found to give some improvements for cavitating flow simulation results for these cases. Turbulence modeling is also found to have an important contribution to the prediction quality of the simulations. The relationship between the turbulence viscosity modification, in order to take into account the local compressibility at the vapor/liquid interfaces, and the predicted numerical results is clarified. The limitations of current cavitating flow simulation techniques are discussed throughout the paper.

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Cavitation Simulations of a Tip Leakage Vortex for a NACA0009 Hydrofoil and a Francis Turbine at Stable Full Load Operating Point

Wack

Riedelbauch

2019

High Performance Computing in Science and Engineering ' 18

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Comparison of mass transfer models for the numerical prediction of sheet cavitation around a hydrofoil

Cited by 158 publications

References 4 publications

Simulation of Sheet and Cloud Cavitation with Homogenous Transport Models

Simulation of Sheet and Cloud Cavitation with Homogenous Transport Models

Investigation of Cavitation Models for Steady and Unsteady Cavitating Flow Simulation

Cavitation Simulations of a Tip Leakage Vortex for a NACA0009 Hydrofoil and a Francis Turbine at Stable Full Load Operating Point

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