*
Cococubed.com


Reinicke Meyer-ter-Vehn Problem

Home

Teaching materials
Astronomy research
Astronomy codes
... Stellar equation of states
... EOS with ionization
... EOS for supernovae
... Chemical potentials
... Stellar atmospheres
... Voigt Function
... Polytropic stars
... Cold white dwarfs
... Hotter white dwarfs
... Cold neutron stars
... Stellar opacities
... Neutrino energy loss rates
... Ephemeris routines
... Fermi-Dirac functions
... Galactic chemical evolution

... Nuclear reaction networks
... Nuclear statistical equilibrium
... Laminar deflagrations
... CJ detonations
... ZND detonations
... Fitting to conic sections
... Unusual linear algebra
... Derivatives on uneven grids
... Pentadiagonal solver
... Quadratics, Cubics, Quartics
... Supernova light curves
... Exact Riemann solutions
... 1D PPM Hydrodynamics
... Verification problems

... EZ stellar evolution
... FLASH code
... Mesa code
Astronomy talks
Astronomy images
Outreach
Family album
Bicycle adventures
Artwork


Contact us:
J.D. Maldonado
F.X.Timmes, my vitae

The Reinicke Meyer-ter-Vehn (RMTV) problem considered here has an initial concentrated energy source of sufficient magnitude so that heat conduction dominates the fluid flow, that is, a thermal front leads a hydrodynamic shock. RMTV examined the self-similar case and found that the fluid equations reduced to a set of four ordinary differential equations Due to evaluation of the initial conditions and multiple-region integration of complicated ODEs, the RMTV problem has the distinction of possessing complex analytical solution. This RMTV code is released under LA-CC-05-101.

image
heat front
leading a shock front
image
analytical and numerical
image
convergence study

image
evolution movie
rmtv.f solves the RMTV problem.


Temperature uniform mesh:
image
temperature 240x240 cells
image
temperature 480x480 cells
image
temperature 960x960 cells

image
temperature error 240x240 cells
image
temperature error 480x480 cells
image
temperature error 960x960 cells

image
temperature asymmetry 240x240
image
temperature asymmetry 480x480
image
temperature asymmetry 960x960

image
temperature movie
image
temperature movie


Temperature adaptive mesh:
image
temperature 240x240 cells
image
temperature 480x480 cells
image
temperature 960x960 cells

image
temperature error 240x240 cells
image
temperature error 480x480 cells
image
temperature error 960x960 cells

image
temperature asymmetry 240x240
image
temperature asymmetry 480x480
image
temperature asymmetry 960x960


 



Please cite the relevant references if you publish a piece of work that use these codes, pieces of these codes, or modified versions of them. If you're nice, offer co-authorship of the publication. At best, you'll love these programs so much that you'll send great wads of cash to me.