Modelling Taylor-Couette-Poiseuille Flow

ggltz39 · June 13, 2025, 10:38

Hello everyone! I'm trying to simulate TCP (flow between two concentric cylinders with the inner one rotating and outer one stationary) flow in COMSOL with a 3D model but I can't figure out the right boundary condition for the interior rotating wall. I've tried decomposing the velocity in cylindrical coordinates to cartesian coordinates but it did not work in the intersections with the axis. Any help is appreciated.

SamuelMelch · August 16, 2025, 04:23

Having trouble with rotating wall boundary conditions in COMSOL for TCP simulation? I did too! I found that using a rotating frame of reference for the inner cylinder, coupled with a slip condition on the outer wall, worked best for me. Did you try that approach?

June 13, 2025, 10:38	Modelling Taylor-Couette-Poiseuille Flow	#1
ggltz39 New Member Join Date: Mar 2025 Posts: 2 Rep Power: 0	Hello everyone! I'm trying to simulate TCP (flow between two concentric cylinders with the inner one rotating and outer one stationary) flow in COMSOL with a 3D model but I can't figure out the right boundary condition for the interior rotating wall. I've tried decomposing the velocity in cylindrical coordinates to cartesian coordinates but it did not work in the intersections with the axis. Any help is appreciated.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
unable to run dynamic mesh(6dof) and wave UDF	shedo	Fluent UDF and Scheme Programming	0	July 1, 2022 18:22
Intuition for why flow follows convex surfaces	lopp	Main CFD Forum	47	February 1, 2022 14:14
About Some Concepts:Laminar flow, turbulent flow, steady flow and time-dependent flow	Jing	Main CFD Forum	8	October 5, 2018 18:02
Review: Reversed flow	CRT	FLUENT	1	May 7, 2018 06:36
modelling blood flow in arteries with starcd	sara	Siemens	5	April 10, 2007 10:17

August 16, 2025, 04:23		#2
SamuelMelch New Member SamuelMelch Join Date: Aug 2025 Posts: 3 Rep Power: 2	Having trouble with rotating wall boundary conditions in COMSOL for TCP simulation? I did too! I found that using a rotating frame of reference for the inner cylinder, coupled with a slip condition on the outer wall, worked best for me. Did you try that approach?