A new model for the analytical prediction of wall shear stress distributions at the base of orbitally shaken shallow fluid layers is developed. This model is a generalisation of the classical extended Stokes solution and will be referred to as the potential theory-Stokes model. The model is validated using a large set of numerical simulations covering a wide range of flow regimes representative of those used in laboratory experiments. It is demonstrated that the model is in much better agreement with the simulation data than the classical Stokes solution, improving the prediction in 63% of the studied cases. The central assumption of the model—which is to link the wall shear stress with the surface velocity—is shown to hold remarkably well over all regimes covered.
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Orbitally shaken shallow fluid layers. II. An improved wall shear stress model
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March 2018
Research Article|
March 30 2018
Orbitally shaken shallow fluid layers. II. An improved wall shear stress model
Paola Alpresa;
Paola Alpresa
Imperial College London
, SW7 2AZ London, United Kingdom
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Spencer Sherwin
;
Spencer Sherwin
Imperial College London
, SW7 2AZ London, United Kingdom
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Peter Weinberg;
Peter Weinberg
Imperial College London
, SW7 2AZ London, United Kingdom
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Maarten van Reeuwijk
Maarten van Reeuwijk
a)
Imperial College London
, SW7 2AZ London, United Kingdom
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a)
Electronic mail: m.vanreeuwijk@imperial.ac.uk
Physics of Fluids 30, 032108 (2018)
Article history
Received:
November 17 2017
Accepted:
March 02 2018
Connected Content
This is a companion to:
Orbitally shaken shallow fluid layers. I. Regime classification
Citation
Paola Alpresa, Spencer Sherwin, Peter Weinberg, Maarten van Reeuwijk; Orbitally shaken shallow fluid layers. II. An improved wall shear stress model. Physics of Fluids 1 March 2018; 30 (3): 032108. https://doi.org/10.1063/1.5016343
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