Adding random noise to the solution of 2D stokes problem

[kamensky]

The easiest solution is probably to use an Expression or a UserExpression to directly interpolate a random variable into an appropriate FunctionSpace. See this thread for examples:

Problem defining initial conditions : Expression problem?

Hi everybody ! I am using Fenics 2018.1.0, installed with Docker, running in a Jupyter Notebook on a Windows 10 machine. I am trying to solve simple reaction-diffusion problem and I face many problems with my code. I was used to older versions of Fenics but I just came back to the new version and it seems that things changed a bit. I am trying to put Initial Conditions to my problem and it gives me this as Input/Output : from dolfin import * from numpy.random import random import numpy impor…