By researching the separating process mechanism of the rising between the coalescenceplates and the coalescing on the surface of the plates, a mathematical model calculating the separating time of the dispersive drops in oilwater separation was proposed.

Both two forms of mine gas in air have rising movement or trend: a part of mine gas or higher concentration of mine gas in air rises by buoyancy because of density difference; pressure diffusion of molecules of mine gas in air is made by pressure gradient, molecules of mine gas have rising movement or trend because down pressure gradient is usually produced by gravity.

According to the need for study on methane movement law in fully mechanizedsublevl caving stopes,the methane rising and pressure diffusion theory is put forward.

The research of buoyancy strengthen theturbulence heat transfer in the boiler system;

Study of Buoyancy-Opposed Mixed Convection in Vertical Passages;

Convection heat transfer of CO2 at supercritical pressures in a vertical tube (Din=2 mm) was investigated experimentally in order to study the effects of the variation of physical properties, buoyancy and thermal acceleration on the convection heat transfer.

The magnetic buoyancy forces were analyzed for paramagnetic and diamagnetic fluids based on the physical mechanism of magnetically induced free convection arising from the susceptibility variation with temperature.

The results show that the buoyant velocity,the buoyant height,the buoyant angle,the temperature expansion radius and axial temperature of the bubbly thermal wake are remarkably influenced by the size of the.

The results show that the buoyant velocity,the buoyant height,the buoyant angle,the temperature expansion radius and axial temperature of the bubbly thermal wake are remarkably influenced by the size of the.