|
[Sponsors] |
April 27, 2023, 04:44 |
simulate nanofluids with mixture model
|
#1 |
New Member
rasoul rezazadeh
Join Date: Apr 2023
Posts: 3
Rep Power: 3 |
hello. I want to simulate cuo nanoparticles dispersed in 60:40 Eg/W base fluid with mixture model. I defined 2 fluid materials for base fluid and cuo nanoparticles but I don't know what value to set for viscosity of cuo! Should I set it to zero?
and also should I activate the granular option for it? I tried both ways, but after running, the viscosity of the mixture is wrong and it is almost equal to the viscosity of the base fluid. what should I do? |
|
April 27, 2023, 05:15 |
|
#2 |
Senior Member
Join Date: Jun 2009
Location: Technische Universität Chemnitz
Posts: 107
Rep Power: 17 |
The nanoparticles are dispersed in the water/ethylene glycol mixture. The solid particles themselves do not have viscosity perse. The liquid mixture will of course. Generally nanoscale size particles will follow the flow very well unless acted upon by an outside source. If you are setting your model up with Copper Oxide nanoparticles as a component in a mixture, leave it to what your use for the liquid mixture.
What is the particle loading in your model? How are you attempting to model the particles? Will you be using the Population Balance models? What are you attempting to see in the results? All of these really go to answering the question. |
|
April 27, 2023, 05:41 |
|
#3 | |
New Member
rasoul rezazadeh
Join Date: Apr 2023
Posts: 3
Rep Power: 3 |
Quote:
What are your recommendations for simulating nanoparticles in the mixture method? |
||
April 27, 2023, 12:15 |
|
#4 |
Senior Member
Join Date: Jun 2009
Location: Technische Universität Chemnitz
Posts: 107
Rep Power: 17 |
Do you know how the changes in viscosity and heat conductivity will change as a function of particle loading? For what you mention, I do not see any reason to explicitly model the particles. It would simply be different simulations with different material properties based upon the amount of CuO in the stream. Is there a reason why you need to include the particles?
|
|
Tags |
cuo, fluen, mixture model, nanofluid, tow phase model |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
interFoam wave propagation and explosion of Courant number and residuals | ChiaraViola | OpenFOAM Running, Solving & CFD | 1 | June 26, 2019 05:36 |
Mixture model problem - could someone please advise? | matlab_monkey | FLUENT | 2 | July 26, 2012 08:20 |
Modelling Sand erosion using Mixture model and DPM | karlchapman | FLUENT | 3 | July 5, 2012 08:55 |
species transport model or mixture model? | achaokaoyan | Main CFD Forum | 0 | July 10, 2010 10:52 |
PDF combustion model to simulate reaction of gas i | Mark | FLUENT | 0 | August 4, 2001 11:07 |