The motion of individual particles is obtained by solving Newtons second law of motion and gas flow by the Navier Stokesequation based on the concept of local average.
The 3d viscous code had been developed to calculate flow field in rotor with tip clearance by solving three-dimensional Navier-Stokesequation with time-marching method.
A finite difference method based on differential-integral equation is presented for the solution of Navier-Stokes equations for incompressible viscous flow.