The simulated cold and fired test results of a slit bluff body burner in laboratory and the operating results of the burner in an actual boiler chamber under the action of aerodynamic fields of cold and fired state as well as those under different loads are described.

By the method of water flow pattern visualization with hydrogen bubbles, the near wake flow behind a slit bluff body has been experimentally studied.

Numerical simulation results of a straight-flow burner, bluff-body and slit bluff-body burn-ers are given.

Coherent structure in wake over slotted bluff body;

By the experimental bench of bluff body flame and under different working orders,the speed in blowing out the flame of methane premixing gas with vapour is measured.

A cold state numerical simulation of the flow field behind a dual duct swirl burner,fitted with a central bluff body,is performed by making use of CFD software,wherewith the flow field,the velocity distribution,the central recirculation zone s dimension and flow volume are obtained in cases of an inserted cone shaped,a wedge-shaped and a parabolic shaped bluff body.

Measurement of the underwater acoustic field in water entry of blunt body;

The results show that transpiration cooling can provide effective thermal protection with lower blowing ratio on blunt body surfaces,over which the main flow is curved external flow.

The PIV experimental investigation on cold-state wake behind bluff-body;

Experiments were performed to investigate the differences between the propane/air turbulent diffusion reactive flows past bluff-body and the propane/humid air turbulent diffusion reactive flows in the same conditions.