Open AccessA test of the v 2-f k-ϵ turbulence model for the prediction of vortex shedding in the Francis-99 hydrofoil test case
Author(s) -
Kristian Forfot Sagmo,
Pål-Tore Selbo Storli
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1296/1/012004
Subject(s) - turbulence , vortex shedding , vortex , k epsilon turbulence model , physics , trailing edge , mechanics , anisotropy , flow (mathematics) , function (biology) , turbulence modeling , k omega turbulence model , optics , reynolds number , evolutionary biology , biology
A test of the v 2 − f k − ϵ turbulence model for the flow around the Francis-99 hydrofoil geometry is conducted in order to assess it’s accuracy of trailing edge vortex shedding prediction. The model is based on the k − ϵ turbulence model, but needs no wall damping function, and also allows near-wall turbulence anisotropy. For reference, the model results are compared with the the SST k − w , in addition to preliminary experimental results previously published. It is indicated that the v 2 − f k − ϵ model gives at least as good, or better results than the more commonly used SST k − w model for the present case, though further measurements are needed in order to make a proper conclusion.