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

[Andy Sha Liao]

Yaoxing,

The reason your code is giving your the error is because in your .par file,
you set the domain boundaries as:

# Domain size:
xmin = 0.0
xmax = 2000.0e-04 #unit 2000 um
ymin = -3000.0e-04 #unit
ymax = 1000.0e-04

But your laser target is:
x = 0.0
y = 0.0
z = 0.0
semimajor/minor = 62.5e-04 #(xmin = -62.5e-04, xmax = +62.5e-04)

I suggest that you fit your entire target reticle inside your domain.
As is, your target ellipse has half of its area at x < 0.0, (extending to x
= -62.5e-04), which is less than your xmin for your domain.

So, setting xmin = -2000.0e-04 should work.


Andy





On Fri, Jul 29, 2022 at 4:32 AM Wu, Yaoxing <wu1587 at purdue.edu> wrote:

> 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
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows
>
>
>
> *From: *Andy Sha Liao <andy at f.energy>
> *Sent: *2022年7月26日 22:10
> *To: *Wu, Yaoxing <wu1587 at purdue.edu>
> *Cc: *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
>
>
>
> ---- *External Email*: Use caution with attachments, links, or sharing
> data ----
>
>
>
> 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> 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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>
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