Understanding Navier's Slip Condition: Fixed Walls & Applicability

Thread starter Suvadip
Start date Apr 18, 2011
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Condition Slip Slip condition

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The discussion centers on the applicability of Navier's slip condition at fixed channel walls, questioning whether it can be applied even when the walls do not move. It is clarified that the slip condition facilitates relative motion between the fluid and the solid interface, which can be relevant in scenarios like wetting. Participants explore the implications of fixed boundaries on the validity of the slip condition. The conversation highlights the importance of understanding boundary conditions in fluid dynamics. Ultimately, the applicability of Navier's slip condition at stationary walls remains a nuanced topic in fluid mechanics.

Apr 18, 2011

Suvadip

Is it necessary for the channel walls to move for the applicability of Navier's slip condition at the boundary. i.e., Is it possible that the channels walls are fixed, but we can apply the Navier's slip condition at both the channel walls.

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Apr 19, 2011

Andy Resnick

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The slip condition simply allows for relative motion between the fluid and sold at the interface. Slip is invoked to explain wetting, for example.

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