[FLASH-USERS] LaserSlab simulation with nanoparticles layer

[Hansen, Eddie]

Another option would be to set tar2 as pure carbon. Then, you would need to initialize some zones as mixed in Simulation_initBlock by setting species mass fractions TAR1_SPEC and TAR2_SPEC appropriately. You’d still need a different EOS table for tar2 and several modifications to the par file.

Also, this option (method 2) will not necessarily give the same results as the first approach I mentioned (method 1). It depends on the tables. For example, a table of 95% Al and 5% C (method 1) may have different opacities and other properties than effectively taking a weighted average of a Al table and a C table (method 2).

--
Eddie Hansen
Research Scientist
Flash Center for Computational Science


From: flash-users <flash-users-bounces at flash.rochester.edu> on behalf of Hansen, Eddie <ehansen at pas.rochester.edu>
Date: Thursday, May 11, 2023 at 9:32 AM
To: kouider benbayer <benbayer.kouider at gmail.com>, flash-users at flash.rochester.edu <flash-users at flash.rochester.edu>
Subject: Re: [FLASH-USERS] LaserSlab simulation with nanoparticles layer
One way would be to define another species. So when you run setup, you could specify species as species=tar1,tar2,cham. Note that species names have to be 4 letters in FLASH.

tar1 would be the pure aluminum
tar2 would be aluminum with some % of carbon
cham is helium in the default LaserSlab setup

You’d need a new EOS table for tar2, and you’d need to at the very least modify the par file and Simualtion_initBlock to place the various species at the desired initial positions.

--
Eddie Hansen
Research Scientist
Flash Center for Computational Science


From: flash-users <flash-users-bounces at flash.rochester.edu> on behalf of kouider benbayer <benbayer.kouider at gmail.com>
Date: Thursday, May 11, 2023 at 5:48 AM
To: flash-users at flash.rochester.edu <flash-users at flash.rochester.edu>
Subject: [FLASH-USERS] LaserSlab simulation with nanoparticles layer
Dear FLASH users
I’m trying to simulate the laser interaction with a solid target (Al) with nanoparticles of carbon on the target surface to see the evolution of the electron temperature under this condition.
Any help is highly appreciated
Best regards
Benbayer
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