TY - JOUR
TI - Investigation of forced convective heat transfer from a block located staggered cavity with parallel and anti-parallel wall motion
AU - Kannan Meenakshi Sundar
AU - Gurunathan Manikandan
AU - Kanna P Rajesh
AU - Taler Jan
AU - Taler Dawid
AU - Oclon Pawel
JN - Thermal Science
PY - 2019
VL - 23
IS - 14
SP - 1281
EP - 1288
PT - Article
AB - The investigation reported in this paper is dealt about the steady-state  laminar flow and heat transfer of a lid driven staggered cavity with the  heated block. Based on the aspect ratio (AR = H/L = 0.5, H/L = 1, H/L = 2)  three different block shapes are introduced for numerical experiments. The  solid block with no slip and stationary wall condition is considered and it  is located at the geometric center of the cavity. The simulations are  carried out for Reynolds numbers 50, 100, 200, 300, 500, and 1000 and  temperature of the block is 300 K. A clock-wise momentum is converged to the  fluid, by the two driving lids on the top and bottom side of the cavity,  lids are set into an anti-parallel wall motion. The upper lid moves to the  right, while the lower one to the left, both are consider as same  velocities. The results are found to be in good agreement with existing  published results. It was found that the dynamics and the structure of the  primary vortex and the corner vortices were strongly affected by the  Reynolds number. The investigation clearly describes that increasing the  Reynolds number values the overall drag coefficient decreases, similarly the  value of average Nusselt number also increases with an increasing Reynolds  number for all the values of different blocks under studied. The study  reveals the important flow physics such as flow separation, boundary-layer  and recirculation. The results will be beneficial for similar situation  occur in many industrial problems.