TELEMAC-MASCARET Forum: Non-Newtonian Fluids (1/1)

Non-Newtonian Fluids 10 years 8 months ago #12161

GiffordMiears_OSU OFFLINE Junior Boarder Posts: 36 Thank you received: 13	Hello TELEMAC-MASCARET community, Can T2D simulate free surface Non-Newtonian fluid flows? For example, mud and debris flows? Any insight would be greatly appreciated. Best regards, Chris
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Non-Newtonian Fluids 10 years 8 months ago #12164

riadh

Hello Chris

As far as I know, there is no standard way to use T2D for a non-newtonian fluids. Debris flows is one of the main development axis on which Telemac team will focus on the near future. For mud, I don't know if there is a valid way to handle it using Telemac+sisyphe. I leave my colleagues complement the answer.
A very basic idea to start with is the implementation of your (visco-elastic or visco...) law and introduce it as a variable viscosity (such as for turbulence models for instance). This is really a very simplistic way, a real true implementation needs, for sure, more time and efforts.

With my best regards

Riadh ATA

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Non-Newtonian Fluids 10 years 8 months ago #12165

pilou1253 OFFLINE openTELEMAC Guru Posts: 584 Thank you received: 106	Hi! This is great news that the development team plans to work on that topic. Please also refer to that topic. Best regards, PL
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Non-Newtonian Fluids 9 years 2 months ago #18237

pilou1253 OFFLINE openTELEMAC Guru Posts: 584 Thank you received: 106	Hi! Any fresh news regarding implementation of non-Newtonian fuilds / debris flows in the TMS? Thank you in advance! PL
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Non-Newtonian Fluids 9 years 2 months ago #18262

jmhervouet	Hello, Hum, nothing coming to my knowledge... Regards, JMH
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Non-Newtonian Fluids 6 years 8 months ago #29355

josekdiaz OFFLINE Expert Boarder Posts: 161 Thank you received: 48	Hi! I guess someone had the same question about debris flow simulation using Telemac, and this is still a really interesting topic. Any recent news? Regards, José Díaz.
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Non-Newtonian Fluids 6 years 8 months ago #29356

riadh	Hello José Not yet, this topic is still in the top of my todo list, but there is no time, probably until next year. kind regards Riadh
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Non-Newtonian Fluids 8 months 2 weeks ago #44330

rjj OFFLINE Fresh Boarder Posts: 13 Thank you received: 2	Hello, do you have any new information about the simulation of fluid mud ?
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Non-Newtonian Fluids 8 months 2 weeks ago #44331

c.coulet OFFLINE Moderator Posts: 3722 Thank you received: 1031	Hi There was a first implementation of non newtonian fluids in Telemac. Look at the manual ant also to the test case non-newtonian... Regards
	Christophe The administrator has disabled public write access.

Non-Newtonian Fluids 8 months 2 weeks ago #44332

pilou1253
OFFLINE
openTELEMAC Guru
Posts: 584
Thank you received: 106

Hi!

As Christophe mentioned, there is a first implementation available with finite volumes in 2D. Look at the manual and example "nn_newt".

For further details and limitations of the current implementation, you can refer to the following papers:
henry.baw.de/items/de03f567-6116-4dfc-aa32-f51a63a5e4b2
henry.baw.de/items/4cc6f773-8b79-4da9-85f7-464028fc8db0

The main current limitation is potentially high numerical diffusion of wave front with strong rheology and/or coarse meshes.

Kind regards
PL

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