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Hi Yanfei,
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<div class="">I can answer for the first question. The xl_boundary _type refers to the axis of symmetry if you run in cylindrical geometry, therefore reflecting is correct. The direction related to the entrance of the laser is the yl_boundary_type, which should
be set to “vacuum”. If your laser is not entering your domain, that might be due to another issue. </div>
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<div class="">As a reminder, if you run the the 2D LaserSlab simulation with the ed_laser3Din2D = .true., the top-bottom direction becomes the Z direction for the laser beam properties. Maybe this is the root of your issues.</div>
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<div class="">Hope this helps,</div>
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<div class="">Fernando </div>
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Fernando García Rubio, PhD<br class="">
Assistant Scientist<br class="">
Laboratory for Laser Energetics<br class="">
585-957-1743
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<div class="">El 19 jul 2023, a las 23:18, 胡艳菲 <<a href="mailto:huyanfeii@163.com" class="">huyanfeii@163.com</a>> escribió:</div>
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<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">Dear Flash users,</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="font-size: 16px; font-family: "Times New Roman";" class=""><span class="" style="font-size: 16px; white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; word-break: break-word !important;">I
encountered some problems in the simulation of the 3D in 2D Laserslab model based on cylindrical coordinates and wanted to do plasma simulation in a clo</span><span style="font-size: 16px; white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; word-break: break-word !important;" class="">sed
chamber filled with air pressure. The problems encountered are as </span><span class="" style="font-size: 16px; white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; word-break: break-word !important;">follows:</span></span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="white-space-collapse: collapse !important; word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="font-size: 16px; font-family: "Times New Roman";" class=""><span class="" style="font-size: 16px; white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; word-break: break-word !important;">1.</span><span style="font-size: 16px; color: rgb(16, 18, 20); word-break: break-word !important;" class="">For
the setting of the enclosed chamber, the xyz direction of parameters such as xl_boundary_type is set to reflect, but the laser cannot enter the interior of the chamber. I want to use the ed_ignoreBoundaryCondition_n parameter to make the laser ignore the boundary
conditions, but it doesn't work. In this case the laser also cannot enter into the chamber. How to solve this problem?</span></span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><br style="word-break: break-word !important;" class="">
</div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">2. For the setting of the air pressure chamber,
even if I set boundary condition in question 1 to outflow enabling laser to enter the chamber, when the chamber density (sim_rhoTarg) is set high, the laser will be completely absorbed by the chamber material and will not reach the target, which is set ms_targZMin
= 0.02 while the chamber does not. Is there any parameter that can avoid this problem or is there a problem with my setting?</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="white-space-collapse: collapse !important; word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="white-space-collapse: collapse !important; word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">3.
In terms of laser deposition, Flash simulation only considers the reverse bremsstrahlung absorption (free-free) process, I want to add the bound-bound and free-bound process, please tell me what parameters can achieve this function?</span></div>
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</div>
<p style="word-break: break-word !important;" class=""><br style="word-break: break-word !important;" class="">
</p>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="white-space-collapse: preserve; box-sizing: border-box; color: rgb(16, 18, 20); line-height: 21px; display: inline; font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">Any
suggestions on those issues would really help me a lot,</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">Thank you very much for the help,</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class=""><br style="word-break: break-word !important;" class="">
</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">All the best,</span></div>
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</span></div>
<div style="margin-left: 19.2pt; word-break: break-word !important;" class=""><span style="color: rgb(16, 18, 20); font-size: 16px; font-family: "Times New Roman"; word-break: break-word !important;" class="">Yanfei Hu</span></div>
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