Abstract To ameliorate the defects of insufficient support resistance traditional roadside filling bodies for gob-side entry retaining (GER), overcome inability to adapt deformation surrounding rock, and isolate goaf effectively, a new type high-water material as body GER technology with double roadways was proposed. The instability analysis control by into gently inclined coal seam were studie...

The film flow of a two-dimensional suspension of neutrally buoyant liquid drops down an inclined plane wall is investigated by numerical simulation in the limit of vanishing Reynolds numbers. The results show that well-separated and solitary drops migrate toward an equilibrium position located between the free surface and the wall, for a broad range of the fluid physical properties and flow con...

Particle image velocimetry (PIV) measurements near a curved boundary usually require efforts to deal with low tracer density, high shear gradient andwall reflection. To resolve these difficulties, we presented a near-wall measurement technique named interfacial PIV (IPIV) that could return a tangential velocity component and a tangential component of wall gradient [Nguyen TD, Wells J, Nguyen C....