The Moving Particle Simulation (MPS) method is an analytical method dealing with the incompressible flow, in which continuum mechanics is discretized using particles. The fundamental governing equations of the MPS method are a continuum equation and Navier-Stokes equations.
Where
: Expresses a Lagrangian derivation
: Velocity
: Density
: Dynamic viscosity
: Pressure
: Gravity acceleration
: The first term, it indicates the amount of pressure change that between of particle i and particle j
: The second term, it indicates the viscosity that due to the difference in speed
: The third term, it represents the acceleration acting from the all outside force
: The fourth term, it indicates the acceleration about gravity