Experimental investigation of lift forces on deformed bubbles in bubbly flows at low and intermediate Reynolds numbers;

One modified droplet turbulent diffusion model was proposed by taking consideration of the effect of shear lift force on the droplet terminal settling velocity, meanwhile the effects of local relative slip between droplet and its carrying fluid together with the interface roughness of liquid film were considered.

By means of the detailed analysis on the droplet movement under condition of oil/gas transport, one method taking consideration of the local interphase slip and the distribution of local shear rate is presented to calculate the local lift force over the pipe cross section.

Research on mechanism of bar lift force by using PIV system in wave field;

Study on lift measurement of ship fins stabilizer at zero forward speed;

Some specific measure about reducing lifting force and yawing moment are advanced.

This article assumes that the classic theory of lifting force ommits one crucial factor determining lifting force: pressure gradient.

The results show that the best effect of glide extended-rang is obtained with the adoption of maximum lift-drag ratio slide.

The lift coefficient,drag coefficient and lift-drag ratio were obtained at a series of angles of attack, starting at 0°up to 16°at 2° intervals respectively.

Several conclusions can be drawn: Firstly,the maximal lift-drag ratio Kmax=3.