Example 1: N-body cluster

N-body calculation

Easy (Scalar) parameters:

Star formation efficiency

Initial virial ratio

Evolution lag time (for winds)

Gas removal timescale

Harder parameters: variable number of inputs??:

Spatial distribution density model (function name and number of parameters depending on function)

Example: Plummer sphere with length and mass scale

Example 2: Jet magnetic hydro simulation

Magnetic pressure – derived data from jet simulation

Coordinate systems, scales

Simulation parameters – jet params, etc.

Scaling rules as a function of sim params

e.g. Spatial scale is 7/3 power of input jet mach no...

Proposal: pick a reference set of physical values and provide scalings

Alternative: provide only scaled “code units”

Example 3: Barred Galaxy hydro simulation

Specify initial potential

Method 1: function name and parameters

Method 2: initial condition data cube (?)

Other params: grid parameters – coord sys, coord range and number of zones; assumed symmetry and boundary conditions

Gas eqn of state and sound speed, timescale param

2005-05-10T09:47:56