For some cases of diferrent boundary layer development conditions (roughness surface, turbulence in main flow) by adverse pressure gradient was determined tranzitiom region. Boundary Tranzition region found based on intermittency flow inside the layer. Intermitency evaluated using modiffied TERA method algorithm.

this paper describes the effects of induced magnetic field and partial slip on the peristaltic flow of a couple stress fluids in an asymmetric channel. the two dimensional equation of couple stress fluid are simplified by making the assumptions of long wave length and low reynolds number. the exact solutions of reduced momentum equation and magnetic force function have been computed in wave fra...

Background Coarctation of the aorta (CoA), a narrowing of the aorta, accounts for approximately 10% of congenital heart defects in the western world. Due to the reduction in diameter, high pressure gradients can appear across the aortic coarctation, resulting in an increased cardiac workload. Current therapies, either surgical or minimally-invasive, aim to alleviate the blood pressure gradient ...

in this paper, fluid flow between two parallel flat plates that are partially filled with two-dimension porous media is investigated numerically using single relaxation time (srt) lattice boltzmann method (lbm) at pore scale. the considered obstacles are random, circular, rigid and granular with uniform diameters. single component and single-phase viscous newtonian fluid are considered as worki...

BACKGROUND Isolated pulmonary valve stenosis (PS) makes up 6-9% of all congenital heart defects among children. The initial gold standard for diagnosis, follow-up of PS is by echocardiography. However, the most accurate diagnosis still remains to be measurement of the pressure gradient through transcatheterization. The purpose of this study is to compare the difference between the echocardiogra...