1D Linear convection

Link to the code:

https://drive.google.com/open?id=1630M6mGNKeCyMjlH4ZqCCQoS3mBXRdnc

Explanation: As the number of grid points increases, the velocity profile moves slowly and the rate of depletion of the velocity due to diffusion is seen to be slower.

At n=160, the velocity values shows an absurd behaviour.