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AMReX-Astro / Emu

Emu is a neutrino quantum kinetics simulation code based on the particle in cell method and parallelized for CPU or GPU supercomputing architectures.
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Minerbo initial conditions #59

Closed srichers closed 3 years ago

srichers commented 3 years ago

Add in initial condition method that allows us to input the density and flux vector of each species.

dwillcox commented 3 years ago

Cool! Do you have a reference for these closure parameters?

srichers commented 3 years ago

Minerbo 1978 https://www.sciencedirect.com/science/article/abs/pii/0022407378900249 I'll add it to a comment

srichers commented 3 years ago

The Fiducial runs set up the initial distribution as linear in costheta (where theta is the angle between the neutrino direction and the flux direction). But most moment-based radiation transport simulations assume the distribution is exponential with costheta. So this sets up a new type of problem that follows the same assumptions as those used in the transport calculations. This will allow us to, say, grab a position in a 3D simulation of a neutron star merger and simulate those parameters.