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Re: [ESPResSo-users] boundary condition in shear flow

From: Ivan Cimrak
Subject: Re: [ESPResSo-users] boundary condition in shear flow
Date: Wed, 12 Jun 2019 14:49:28 +0200


In Espresso, you can use shapes as boundaries for the fluid. Moreover, you can prescribe the velocity on the surface of the boundaries. See the section 
12.9. Using shapes as lattice Boltzmann boundary
in online ESPResSo documentation

For Couette flow, you can set an upper and a lower rhomboid with the opposite velocities to create shear flow.


On 10 Jun 2019, at 13:37, 魏雅洁 <address@hidden> wrote:


     we want simulate a RBC moving in the shear flow using ESPResSo. However, the computation has failed owing to incorrect boundary condition.  Could anyone tell me how to set boundary condition in Couette/shear flow?

Many thanks

Yajie Wei

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