Multiple choice questions 13 Choose the correct one from the

Multiple choice questions (1-3): Choose the correct one from the answers supplied. Which one of the following is the energy equation? Partial differential (rho V vector)/Partial differential t + delta(rho V vector V vector) = -delta rho + rho j vector Partial differential rho + delta (rho V vector) = 0 rho c Partial differential T/Partial differential t + rho delta (T V vector) = rho q + k delta^2 T Partial differential u/Partial differential x + Partial differential v/Partial differential y = 0 Which of the following turbulence model needs the most computational resource? DNS k-epsilon LES Reynolds Stress Model The general governing equations can be simplified for different type of flow conditions. Which one can be used to simplify for a steady flow? Delta V = 0 Partial differential(rho u)/Partial differential t = 0 Partial differential u/Partial differential x = 0 Mu = 0

Solution

1.B

2.A.DIRECT NUMERICAL SIMULATION

3.B