Modeling gas atomization for a complex geometry

[mohamad nooranidoost]

I am a new user of Basilisk and I want to model jet atomization for a complex geometry such as a gas assisted atomizer, having a central liquid discharge nozzle and a ring of gas-nozzles. The ring of nozzles includes 18 small nozzles discharging high pressure gas to atomize the free-falling liquid.

Considering the complexity of our geometry, is it possible to model that using Basilisk/Gerris? I know Basilisk works well for atomization but my question is how to create or import such a geometry in Basilisk.

Regards,

Mohammad N.

PhD student at University of Central Florida

[Wojciech Aniszewski]

Dear Mohamad,
yes, although basic box used in Basilisk is a cubic domain, you can implement such domains in various ways.
First is the mask() directive through a boundary internal domain, looke here: http://basilisk.fr/sandbox/jmf/tutorial
Then there is also an option to import the domain geometry, say from CAD in STL format, look here: http://basilisk.fr/src/examples/distance.c

I believe both solutions could be used to limit the domain to parts fitting your geometry.
best
w

On Mon, Dec 11, 2017 at 02:34:43PM -0800, mohamad nooranidoost wrote:
>
>
> I am a new user of Basilisk and I want to model jet atomization for a
> complex geometry such as a gas assisted atomizer, having a central liquid
> discharge nozzle and a ring of gas-nozzles. The ring of nozzles includes 18
> small nozzles discharging high pressure gas to atomize the free-falling
> liquid.
>
>

> <https://lh3.googleusercontent.com/-iVLJi4PDUhk/Wi8HsVPBVOI/AAAAAAAABq8/WRPwt14qUBI_H2hKLurAP1UdXT3JWW0aACLcBGAs/s1600/Atomization.png>

>
>
>
> Considering the complexity of our geometry, is it possible to model that
> using Basilisk/Gerris? I know Basilisk works well for atomization but my
> question is how to create or import such a geometry in Basilisk.
>
>
> Regards,
>
> Mohammad N.
>
> PhD student at University of Central Florida
>

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--
Wojciech (Wojtek) ANISZEWSKI
[Fr: vôitek anichévsky]
[Eng: voyteck aanishevsky]

Post-doctoral Researcher
Sorbonne University
Institut ∂'Alembert

www:
[in English:] http://www.coria.fr/spip.php?auteur1606
[in Polish:] http://nauka-polska.pl/dhtml/raporty/ludzieNauki?rtype=opis&objectId=240452&lang=pl

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[mohamad nooranidoost]

Thanks Wojciech for your reply.

As I said I am working on a complex geometry which needs unstructured grid or at least some tricks on meshing and MPI. I found that it is not possible to solve an unstructured grid on MPI yet. Basically, these days I am doing a feasibility study to come up with a capable base solver for my project. I found Basilisk a good choice but wondering how useful Basilisk is for a gas atomization. Any information can be very helpful for me.

Regards,

Mohammad

[Junbo Jia]

Dear Mohamad,

Hello, I am very interested in the implementation of your model, have you implemented it?

Thank you!

在 2017年12月12日星期二 UTC+8上午6:34:43，mohamad nooranidoost写道：

[Saman]

Dear Wojciech,

I have two questions regarding the second way,

1-   Can the distance.c example (http://basilisk.fr/src/examples/distance.c 

) be run by MPI_parallel and adaptive simulation? if not, as I could not run in MPI, what is the run.sh script for OpenMP to run this example?

Would you please guide me in that ?I think it is the question of new users. 

2- Can we use a compressible solver for Mohamad case?  (adaptive or non-adaptive simulation)

 

Many thanks in advance.

Cheers  

Saman

On Tuesday, December 12, 2017 at 5:43:33 AM UTC-5, Wojciech Aniszewski wrote:

Dear Mohamad,
yes, although basic box used in Basilisk is a cubic domain, you can implement such domains in various ways.
First is the mask() directive through a boundary internal domain, looke here: http://basilisk.fr/sandbox/jmf/tutorial
Then there is also an option to import the domain geometry, say from  CAD in STL format, look here: http://basilisk.fr/src/examples/distance.c

I believe both solutions could be used to limit the domain to parts fitting your geometry.
best
w

On Mon, Dec 11, 2017 at 02:34:43PM -0800, mohamad nooranidoost wrote:
>
>
> I am a new user of Basilisk and I want to model jet atomization for a
> complex geometry such as a gas assisted atomizer, having a central liquid
> discharge nozzle and a ring of gas-nozzles. The ring of nozzles includes 18
> small nozzles discharging high pressure gas to atomize the free-falling
> liquid.
>
>
> <https://lh3.googleusercontent.com/-iVLJi4PDUhk/Wi8HsVPBVOI/AAAAAAAABq8/WRPwt14qUBI_H2hKLurAP1UdXT3JWW0aACLcBGAs/s1600/Atomization.png>
>
>
>
> Considering the complexity of our geometry, is it possible to model that
> using Basilisk/Gerris? I know Basilisk works well for atomization but my
> question is how to create or import such a geometry in Basilisk.
>
>
> Regards,
>
> Mohammad N.
>
> PhD student at University of Central Florida
>
> --
> You received this message because you are subscribed to the Google Groups "basilisk-fr" group.

> To unsubscribe from this group and stop receiving emails from it, send an email to basil...@googlegroups.com.