The approach for dealing with the upper surface boundary conditions to adapt the complicated situation such as infiltration of precipitation or irrigation,surface ponding,runoff formation,evaporation and evaportanspiration as well as the alternative occurrence of these situations are proposed.

Defining the turbulent mixing coefficient and the corresponding flux-boundary conditions for the dust diffusion equation;

Boundary conditions of finite difference time domain simulation in room acoustics;

Sensitivity analysis on boundary conditions in numerical simulation of seepage flow through dam foundation;

Influence of different boundary conditions and strain amplitudes on the structural internal friction of anisotropic laminated damped structures;

Investigation of the inlet and outlet boundary conditions in numerical simulations of twin-screw extruders;

Handling the Boundary Conditions during Cooling in 3D Tanperauire Field Simulation in Low Pressure Die-casting;

It is concluded that changing some of the border conditions can exer.

It uses this technique to trace and visualize the dynamic evolution of 2-dimension quadrate cellular automata according to the different neighbor conditions and edge conditions.