Index Domain and Boundary condition Equations
1. Boundary Wall Boundary (slip) -n.u= 0
2. Boundary Wall Boundary (no slip) u = 0
3. Boundary Axial Symmetry r = 0
4. Domain Volumetric Force F = \(\frac{2\ \text{α\ I}}{\text{ρ\ C}}\) \(\frac{N}{m^{3}}\)