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-   -   FLUENT Mixture model for Nanofluid (https://www.cfd-online.com/Forums/fluent/99036-fluent-mixture-model-nanofluid.html)

Waqas Ahmed March 24, 2012 16:21
FLUENT Mixture model for Nanofluid
 
Hi,

Can Mixture model (FLUENT) can be used for simulation of nanofluid?
I've heard that mixture model is for particles of micro in size.

diah March 26, 2012 03:18
I have the same question with Waqas Ahmed. I plan to use FLUENT for simulation of nanofluid heat transfer, but i'm not sure the mixture model is applicable for nano-sized particle.




Quote:
Originally Posted by Waqas Ahmed (Post 351263)
Hi,

Can Mixture model (FLUENT) can be used for simulation of nanofluid?
I've heard that mixture model is for particles of micro in size.

rezacfd1361 March 29, 2012 11:57
what s the meaning of sum of volume fraction in montoring?
 
what s the meaning of selecting sum in "define surface monitor" for "Phrases" , "volume fraction" . I have a 2 phase domain, primary phase is air and secondary phase is water. I am going to track surface changes for water, in internet i read that I have to select sum when i intoduce monitors/surface/surface monitors/define surface monitor.
my case is a Neumerical Wave Tank.:confused::confused::confused:
please help me.

parsad September 29, 2012 07:23
yes we can and i do this work ms.khalafi@yahoo.com please contact with me
 
Quote:
Originally Posted by Waqas Ahmed (Post 351263)
Hi,

Can Mixture model (FLUENT) can be used for simulation of nanofluid?
I've heard that mixture model is for particles of micro in size.
yes we can and i do this work ms.khalafi@yahoo.com please contact with me

micro77 October 12, 2012 20:59
mixture model for nanofluid
 
Dear all,

I'm simulating nanofluid (Alumina water-based) using mixture model. The primary phase (water) and the secondary phase (alumina-2%). Eventhough the volume fraction of alumina is very small, the particle diameter is larger enough compared to water.

dia. of water molecule=0.29 nm, dia. of alumina=20 - 40 nm.

In mixture model, i'm defining both properties as individual property(not mixture properties). What make me confuse here is that from lit. review, all papers shows the eff. thermal properties (mixture properties) instead of individual properties.

Am I doing wrong here?Should i define the mixture or individual properties? In fluent tutorial, they use individual properties.

Thanks in advance

Goutam October 9, 2013 06:46
Quote:
Originally Posted by micro77 (Post 386357)
Dear all,

I'm simulating nanofluid (Alumina water-based) using mixture model. The primary phase (water) and the secondary phase (alumina-2%). Eventhough the volume fraction of alumina is very small, the particle diameter is larger enough compared to water.

dia. of water molecule=0.29 nm, dia. of alumina=20 - 40 nm.

In mixture model, i'm defining both properties as individual property(not mixture properties). What make me confuse here is that from lit. review, all papers shows the eff. thermal properties (mixture properties) instead of individual properties.

Am I doing wrong here?Should i define the mixture or individual properties? In fluent tutorial, they use individual properties.

Thanks in advance
I have the same problem, how to use mixture model for nanofluids in Fluent?

HyperNova December 15, 2014 16:42
hi , could any body here solve the problem with mixture model in nanofluid modelling ? thanks

saurabhg2014 February 24, 2015 03:35
You found any solution?

HyperNova February 25, 2015 22:51
who ? me ?! :D

saurabhg2014 February 26, 2015 00:59
Quote:
Originally Posted by HyperNova (Post 533428)
who ? me ?! :D
yes , if you succeeded then?

Goutam June 8, 2015 02:40
You can see this paper:
http://www.sciencedirect.com/science...3519331400284X
Mixture model in FLuent has been used for nanofluid.

TRINAVEE July 10, 2015 02:58
WHERE CAN THE PARTICLE VOLUME CONCENTRATION eg 1% ,4% BE given FOR NANO FLUID here in fluent ?

TRINAVEE July 10, 2015 03:00
i have the same doubt .please help

rajann_786 March 23, 2016 05:52
Please refer this
http://www.sciencedirect.com/science/article/pii/S1290072912003420

sinemdiscioglu April 25, 2017 16:15
hello can you help me?

mohammad faizan March 16, 2019 00:33
Quote:
Originally Posted by micro77 (Post 386357)
Dear all,

I'm simulating nanofluid (Alumina water-based) using mixture model. The primary phase (water) and the secondary phase (alumina-2%). Eventhough the volume fraction of alumina is very small, the particle diameter is larger enough compared to water.

dia. of water molecule=0.29 nm, dia. of alumina=20 - 40 nm.

In mixture model, i'm defining both properties as individual property(not mixture properties). What make me confuse here is that from lit. review, all papers shows the eff. thermal properties (mixture properties) instead of individual properties.

Am I doing wrong here?Should i define the mixture or individual properties? In fluent tutorial, they use individual properties.

Thanks in advance
@gautam did u solve ur problem?

HyperNova March 16, 2019 03:53
if the volume fraction is less than 2 percent, DPM can be used in my opinion. But one should be careful with interfacial forces like drag law.


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