A numerical study of fluid flow in the channel with rectangular blocks is performed by using finite volume method.
SIMPLER algorithm and Power-law scheme are used for numerical scheme.
Numerical computation is divided into the precomputation and t...
A numerical study of fluid flow in the channel with rectangular blocks is performed by using finite volume method.
SIMPLER algorithm and Power-law scheme are used for numerical scheme.
Numerical computation is divided into the precomputation and the main computation.
In the precomputation, driven square cavity and backward-facing step are studied, and the results are shown to agree with other numerical and experimental data.
In the main computation, convergence become more slow as the Reynolds number is increased.
For flow fields near blocks, the severe pressure gradient is formed near the upper-left corner, and recircular zones are formed in the front and rear of blocks and in the space of blocks.
In addition, the size of the recircular zone become larger as the Reynolds number increases.