[FLASH-USERS] How to set a dual pulse simultaneously irradiated on a disc target to generate a colliding plasma

[Wu, Yaoxing]

Hi Andy,

Thanks a lot for your help. I am learning to set 2D-cartesian to simulate the laser produced slab plasma. First, I just simulate a very easy example which a single pulse irradiate on the slab target with 2D-cartesian. But I am facing a problem which was shown below message:

“Error message is ed_beamsCheck2DRec: Beam target (partially) outside of domain!”

I also attached my .par file and hope it can help to find the problem. Could you please tell me how to solve this problem?

I would appreciate for your help.
Regards,
Yaoxing Wu

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From: Andy Sha Liao<mailto:andy at f.energy>
Sent: 2022年7月26日 22:10
To: Wu, Yaoxing<mailto:wu1587 at purdue.edu>
Cc: flash-users at flash.rochester.edu<mailto:flash-users at flash.rochester.edu>
Subject: Re: [FLASH-USERS] How to set a dual pulse simultaneously irradiated on a disc target to generate a colliding plasma

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Hi Yaoxing,


It looks like you are running this in cylindrical coordinates with 3D in 2D for the laser beams.

The geometry of the simulation you are setting up is rotated around the vertical axis of your plot.

As a result, the beam at horizontal position == 0.0 cm has the intended intensity on target,

but the beam at horizontal position == 0.1 cm has its intensity spread over an annulus.

To produce your intended geometry, you can either go to full 3D or 2D-cartesian.


Andy

On Tue, Jul 26, 2022 at 8:59 AM Wu, Yaoxing <wu1587 at purdue.edu<mailto:wu1587 at purdue.edu>> wrote:
Dear FLASH users & developers,

I am doing some simulations of laser produced plasma. I have a question about how to set a dual pulse simultaneously irradiated on a disc target to generate a colliding plasma.

I edit and add another Gaussian Beam2 in the runtime parameter file (.par) copied from LaserSlab simulation. The distance between Beam 1 and Beam 2 is set to 1000 um.

All laser parameters of Beam 1 and Beam 2 are same except the incident position. But the plasma parameters generated by two beams are not same. I have attached the .par file and the electron temperature at 8 ns (The ray trace in the picture is 0 ns). I also attached my experimental setup which I want to simulate.

I would appreciate any help.

Thanks!

Regards,
--
Yaoxing Wu
Wuhan National Laboratory for Optoelectronics
Huazhong University of Science and Technology
Luoyu Road 1037, Wuhan 430074

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