In the present paper, combination of pressure difference method with gas-liquid inter-phase slip velocity was proposed to measure the phase holdups in TPALRs.

Distribution law of its inner Flow Field and separation characteristic of oil and water phases flow were obtained according to the analysis of distribution of oil phase volume concentration, distribution of oil phase slip velocity and separation efficiency under different flux.

Local slip velocity is an important factor in mass,momentum and heat transfer of riser reactors.

Different slip behaviors were observed including velocity slip, interfacial no-slip and negative slip.

A nonlinear model based on the finite element method was provided to compute the static characteristics of partial porous air thrust bearing considering the tangential velocity slip at the bearing-film interface.

Experimental results show that velocity slip do not obey the Beavers mode, but it could be approximated by an added equivalent clearance.

First order slip velocity and jump temperature boundary conditions are employed to deter- mine the developing flow and heat transfer in the entrance region of a microtube.

The characteristics of gas flow velocity,friction coefficient,and heat transfer(Nusselt number) in micro-channels under the conditions of equal heat flow,equal wall temperature,and no temperature grads were simulated by using the model of Navier-Stokes equations and slip velocity boundary conditions.