2013年12月7日星期六

Kernal functions related to SPH

In the Ghost SPH paper, user just mention to use Monaghan's M4 cubic spline as kernel function , which did not make sense to me. I have read the original Monaghan's paper, and did not get any idea  to use this kernel function.
 After online searching I realize that we have more advanced kernel function which can be used.
Following poly6 kernel is used for density.

Following spinky kernel is used for pressure
Following kernel is used for viscosity

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