Jet mixings of a coplanar alternating-lobe nozzle (CoALN), scarfing (ScALN), sword (SwALN), and chevron (SwChALN) were numerically investigated using three different far-field velocities to simulate the conditions pumping air intake stamping intake. It was confirmed that can be introduced increase cool involved in mixing for an infrared suppressor helicopter. found increases amount stream near ...

Based on a group of new Saul’yev type asymmetric difference schemes constructed by author, a high-order, unconditionally stable and parallel alternating segment explicit-implicit method for the numerical solution of the fourth-order heat equation is derived in this paper. The truncation error is fourth-order in space, which is much more accurate than the known alternating segment explicit-impli...

We prove the ‘oval conjecture’ for planar partition functions, which says that the shift plane and the translation plane defined by a planar partition function form an oval pair of planes in the sense that each non-vertical line of one plane defines a topological oval in the projective closure of the other. The proof uses covering space techniques, and we have to assume that the generating func...

Fluidized beds are suspensions of grains by ascending fluids in tubes, and commonly used industry given their high rates mass heat transfers between the solids fluid. Although usually employed large scales (tube diameter order meter), fluidized have a great potential much smaller (order millimeter) for processes involving powder fluids. Of particular interest is pharmaceutical industry, which c...