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  • 1:58 PM, Sunday, 24 Oct 2021

Course Dual Degree (B. Tech + M.S / M.Tech)
Semester Electives
Subject Code ESA467
Subject Title Radiation Hydrodynamics


Introduction: How radiation affects the flow of matter – Cooling, Heating, Momentum transfer, Matter density variation due to annihilation/pair-production. Review of gas dynamics: Ideal fluids, Transport terms – Viscosity & heat conduction, Sound waves, Shocks – Rankine-Hugoniot relations. Review of radiation physics: Intensity, Flux, Energy density, Stress tensor, Transport equations, Diffusion approximation, Coupling terms in Euler's equations. Steady state transfer: Radiation-matter interaction: Einstein's coefficients, Scattering, Ionization/recombination, Opacity calculations, Spectral line transport. Polarized light in the equation of transfer: Hydrodynamics with radiation: non-adiabatic waves, atmospheric oscillations with radiation pressure, Relativistic hydrodynamics in the presence of a radiation field. Numerical techniques for radiation transport. Examples: Ionization fronts, Comptonization, Radiating shock waves, Radiatively driven stellar winds.

Text Books

1. Foundations of Radiation Hydrodynamics, Dimitri Mihalas, Dover Pbl.

2. Radiation Hydrodynamics, John I Castor, Cambridge Press.

3. The equations of Radiation Hydrodynamics, Gerald C Pomraning, Dover pblcns


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