Concatenate two functions into a Mixedspace

[dokken]

@Karlosjusus

w_vector=np.concatenate((u_vector, p_vector))
w.vector()[:]=w_vector[:]

You should use a FunctionAssigner to assign data to mixed spaces, see:

Usage of FunctionAssigner

As you are working with a 3 dimensional mesh, the vector function space has three components: T_S_1 = interpolate(S_11, T) T_S_2 = interpolate(S_12, T) T_s_0 = Function(T) # Function containing 0 values assigner = FunctionAssigner(V, [T, T, T]) assigner.assign(v, [T_S_1, T_S_2, T_s_0])