Abstract
It always remains a thought-provoking task for the investigators to narrate the liquid stream interaction with corrugated confined media. Therefore the present article is one of the notable attempts in this direction to offer an optimized value of liquid stream drag/lift forces experienced by various arrangements of regular obstructions in the corrugated domain. More exactly, a liquid stream is introduced through a parabolic profile bounding from the inlet. The corrugated domains outlet own Neumann state. Designed direction of obstacle construction comprises: (i) Two square cylinders are mounted in the left/right locality of the convergent-divergent (CD) throat. (ii) Square cylinder in the right locality of CD throat is aimed with a triangular hitch (iii) Square cylinder in the left locality is optimized with a triangular hitch. The flowing liquid stream in terms of the steady Reynolds Navier-Stokes equation is modeled mathematically. In a finite element scheme, rectangular and triangular elements are considered to have hybrid meshing to report numerical solutions. Improved values of lift and drag forces are reported. The hitches in the left locality of CD throat having liquid stream are found to accept provoking values of hydrodynamic forces relative to rooted obstruction in the right locality of CD throat.