1 / 2

Stoke’s first problem (BSL example)

Stoke’s first problem (BSL example). Semi infinite medium: i.e. fluid extends from 0 to infinity in y direction. In the x and z directions, it extends from (minus infinity) to (plus infinity). y. x.

jaguar
Download Presentation

Stoke’s first problem (BSL example)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Stoke’s first problem (BSL example) • Semi infinite medium: i.e. fluid extends from 0 to infinity in y direction. In the x and z directions, it extends from (minus infinity) to (plus infinity) y x • Sudden movement of plate at a constant velocity V0. The development of flow with respect to time is to be quantified • Qualitative: As time increases, you expect the ‘region of influence’ to increase; i.e. more and more fluid will be ‘aware’ of the plate movement. • Assume that if the velocity of fluid is 1% (or more) of the plate velocity V0, then we can say that the fluid is ‘aware’ of the plate movement. • Compression and expansion may move at the speed of sound in the fluid. Transfer of signal of shear stress may not.

  2. 1 Stokes First pbm • No velocity in the y or z direction • No pressure gradient • Vx does not depend on x or z • No gravity in x direction • Kinematic viscosity

More Related