Changes between Version 5 and Version 6 of u/erica/RadHydro


Ignore:
Timestamp:
03/29/16 18:44:17 (9 years ago)
Author:
Erica Kaminski
Comment:

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  • u/erica/RadHydro

    v5 v6  
    2929In the code the constant out in front is given by "scalerad". Checking a uniform ambient medium with this expression for Erad, shows that Erad at t=0 is given by scalerad*T^4^. Thus, any gas with finite temperature is producing radiative energy in the grid through black body radiation. Since
    3030
    31 [[latex($\frac{\partial E}{\partial t} \propto \nabla \cdot \nabla E + (4 \pi B - cE)$)]]
     31[[latex($\frac{\partial E}{\partial t} \propto \nabla \cdot \nabla E + (4 \pi B - cE)$)]],
    3232
     33[[latex($cE=4\pi B ~(at ~t=0)$)]], and
     34
     35[[latex($\nabla E =0$)]], we have
     36
     37[[latex($\frac{\partial E}{\partial t}=0$)]]
     38
     39There is no change in the radiative energy over time. Now, other dynamics in the simulation, e.g. gravity, could change the temperature distribution in the grid and thus B(T). Only after this would happen, would we begin to see changes in E.
     40
     41