Mixing in Oscillating Lid Driven Cavity—A Numerical Study

The mixing problems are highly important to be dealt with in fluid mechanics. In the present work mixing in a lid driven cavity with constant top wall velocity and oscillating top wall velocity is addressed. The staggered grid system is used and discretization of continuity equation, Navier–Stokes equations and concentration equation are done using Finite Volume Method. The Euler Explicit scheme is used for solving the numerical problem. Firstly, the developed computational model is validated with that of other researcher’s results for the case of constant top wall motion. Then the simulation is done for oscillating top wall for a Reynolds number of 100 and two amplitudes. The results in both cases are compared.