[FLASH-USERS] Question on the unit of "ed_power_n_i"

Sang Yun Shin shinsy85 at gmail.com
Sat Oct 3 04:02:21 EDT 2020


Hi folks,
I'm running FLASH simulations based on the LaserSlab example.


When I set laser power or intensity,
the user-guide recommends to modify "ed_power_n_i" value as I want.
But I don't be convinced of the unit of this value.
In the user-guide (p.505), it's unit is denoted as "Watt".
If it was right, in Figure 32.80 (p.501), because the intensity of the
laser beam is denoted as 3.2 W/cm^2 with 10 um radius, the laser intensity
can convert as 1.005e-05 Watt.
However, in the below page (p. 504), it is denoted as "ed_power_1_2 =
1.0e+09".
Is the unit of "ed_power_n_i" right as Watt or erg/s?

And I have one more question.
If I set a simulation in 1d-planar-geometry,
Is the unit of "ed_power_n_i" Watt ? or W/cm or W/cm^2 ?


Have a nice day,
Regards,
Sang Yun Shin.

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## Sang Yun Shin

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