Add a new kernel

Here we present how to add a new kernel in the LBM_Saclay_Rech-Dev version. For example, we want to add a new kernel based on NSAC_Comp and named MPwSLphC for Multi-Phase with Solid-Liquid phase Change. The mathematical model of NSAC_Comp detailed in Model of Navier-Stokes/Conservative Allen-Cahn (CAC)/Composition, is extended here to add a new phase-field equation for simulating crystal growth.

• Copy and rename directory and files
• Add a new equation inside the new kernel
• Write your function setup_collider