2. Question 2 Is it advisable to use 1st-order discretization for convection when simulating turbulent flow in a diffusor? 1 point Yes, because the accuracy is not significantly affected, but the computing effort is significantly lower than when higher-order methods are used. No, because 1st-order discretization always leads to a symmetrical flow solution, while in reality the flow is usually asymmetrical. No, because the solution may even be qualitatively wrong unless the grid is very fine.