Abstract | The innovative knowledge for modelling of the wave propagation is solitary waves. The dynamical model of solitary wave represented in Korteweg de Vrise (KdV) equation form. In this modelling assumed that the KdV equation has not perturbation sign, so called Basic Korteweg de Vries (BKdV) equation.ÃÂÃÂ This modelling begins from expressing of the BKdV equation into to discrete form as its linear form using implicit scheme for finite difference method. Then, it linear form constructed into matrix form.ÃÂÃÂ The solution of matrix form determined using Gauss-Jordan method for resulting of the numerical solution of the BKdV equation. numerical solution was representing on the surface-graphic for the wave envelope as representation of the dynamical non linear in the water.ÃÂÃÂ This modelling results indicating that the wave envelope ÃÂÃÂ was has distortion of initial amplitude ÃÂÃÂ on longstanding of time.ÃÂÃÂ It indicate ÃÂÃÂ that the fluid energy was has distortion on longstanding of time. Key Word: Soliton, KdV, Numerical, Wave, Envelope |