It has important sciencfic and engineering applications for aircrafts of low speed to design the buoyancy-lifting aircraft with both bigger volume and higher aerodynamic efficiency.

Near space tandem-wing lift and buoyancy incorporated airship is a kind of low speed aircraft operating in near space environment.

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.

Aim at the waste water of starch that provided by one of Hubei factories , we put forward that use an air-floating integral unit to clean the waste water,search into the influence of flocculent,dosage and operate parameter on the result,obtain an optimum operate condition.

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.