Specific features:
jCODE consists of a number of modules for simulating highspeed
(compressible) twophase and chemically reacting flows in complex geometries, and corresponding adjointbased sensitivity. Specific features include:
Highorder narrow stencil finite difference operators that satisfy
summationbyparts (SBP) property
Simultaneousapproximationterm (SAT) boundary treatment to
ensure an energy estimate
A characteristicbased immersed boundary method for efficienty
handling complex geometries on structured grids for inviscid and
viscous flows
Lagrangian particle tracking capabale of simulating upwards of a
billion individual particles undergoing mass/momentum/heat exchange
and interparticle collisions
Fully discrete adjoint capabilities to provide machineprecision
sensitivity for turbulent reacting flows


Parallel performance:
Scaleup of jCODE on OLCF Titan. The code is
fully explicit and massively parallel, enabling largescale
computations with billions of grid points and 100s of millions of
particles.

