Grid Influence on the Propeller Open-Water Performance and Flow Field

Berchiche, Nabila; Janson, Carl-Erik

doi:10.1179/str.2008.55.2.005

Cited by 4 publications

(1 citation statement)

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“…International Journal of Rotating Machinery is possible to note that for both propellers the Rotating region was discretized by a hexa-structured mesh which was generated, as suggested in [31,32], by decomposing that domain region in a large number of blocks. The resolution and also the quality of the cells were set through a proper node distribution on the blocks edges.…”

Section: Meshingmentioning

confidence: 99%

Numerical Predictions of Cavitating Flow around Model Scale Propellers by CFD and Advanced Model Calibration

Morgut

Nobile

2012

International Journal of Rotating Machinery

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The numerical predictions of the cavitating flow around two model scale propellers in uniform inflow are presented and discussed. The simulations are carried out using a commercial CFD solver. The homogeneous model is used and the influence of three widespread mass transfer models, on the accuracy of the numerical predictions, is evaluated. The mass transfer models in question share the common feature of employing empirical coefficients to adjust mass transfer rate from water to vapour and back, which can affect the stability and accuracy of the predictions. Thus, for a fair and congruent comparison, the empirical coefficients of the different mass transfer models are first properly calibrated using an optimization strategy. The numerical results obtained, with the three different calibrated mass transfer models, are very similar to each other for two selected model scale propellers. Nevertheless, a tendency to overestimate the cavity extension is observed, and consequently the thrust, in the most severe operational conditions, is not properly predicted.

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Section: Meshingmentioning

confidence: 99%