This paper deals with the design and implementation of cross-platform, D2Q9-BGK D3Q27-MRT, lattice Boltzmann method solver for 2D 3D flows developed ArrayFire library high-performance computing. The leverages ArrayFire’s just-in-time compilation engine compiling high-level code into optimized kernels both CUDA OpenCL GPU backends. We also provide C++ Rust implementations show that it is possibl...

The non-linear dynamics of a semi-dilute (c/c* = 15) polydisperse polyethylene oxide (PEO) solution in microfluidics are studied experimentally using benchmark contraction–expansion flow geometries with three contraction–expansion ratios (4:1:4, 8:1:8 and 16:1:16) and two narrow channel lengths (Lc/Dh = 53 and 5.3, where Lc is the length of the narrow channel and Dh is its hydraulic diameter). ...

The Karman vortex street is a common flow phenomenon. In hydraulic machinery, it usually located downstream of the guide vanes and runner blades, which reduces performance may also cause fatigue damage to structure. latest research suggested that difference in velocity gradient on each side blade trailing edge have significant impact strength wake vortex. current work aims verify above conclusi...

In this paper an energy harvesting system based on a piezoelectric converter to extract energy from airflow and use it to power battery-less sensors is presented. The converter is embedded as a part of a flexure beam that is put into vibrations by von Karman vortices detached from a bluff body placed upstream. The vortex street has been investigated by Computational Fluid Dynamics (CFD) simulat...

tire street children phenomenon is categorized as a social disorder that not only includes a great number of children and youngsters as society future capital with danger but also makes the society suffer of harms. therefore, in order to decrease this disorder we should understand its different dimensions and the factors influencing on it to find various scientific and practical solutions for i...

The synthesis of a comprehensive theory of force production in insect flight is hindered in part by the lack of precise knowledge of unsteady forces produced by wings. Data are especially sparse in the intermediate Reynolds number regime (10<Re<1000) appropriate for the flight of small insects. This paper attempts to fill this deficit by quantifying the time-dependence of aerodynamic forces for...