Journal ArticleDOI
The critical velocity in pipeline flow of slurries
Anil R. Oroskar,Raffi M. Turian +1 more
TLDR
In this article, an analysis based on balancing the energy required to suspend the particles with that derived from dissipation of an appropriate fraction of the turbulent eddies is used to develop a correlation for prediction of the critical velocity.Abstract:
In slurry transport, the critical velocity is defined as the minimum velocity demarcating flows in which the solids form a bed at the bottom of the pipe (bed load flows) from fully suspended flow. An analysis based on balancing the energy required to suspend the particles with that derived from dissipation of an appropriate fraction of the turbulent eddies is used to develop a correlation for prediction of the critical velocity. Comparison of the results with available experimental critical velocity data, relating to a rather wide variety of slurry systems, confirms that the present correlation does a superior job of prediction than all previously proposed critical velocity correlations.read more
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Journal ArticleDOI
Slurry flow in horizontal pipes—experimental and modeling
P. Doron,D. Granica,Dvora Barnea +2 more
TL;DR: In this paper, a physical model for the prediction of the pressure drop and flow patterns is presented for the hydraulic transport of coarse particles in horizontal tubes, which is compared with new experimental data and shows good agreement.
Journal ArticleDOI
Flow pattern maps for solid-liquid flow in pipes
P. Doron,Dvora Barnea +1 more
TL;DR: In this paper, a method for displaying the range of existence of flow patterns in a solid-liquid pipeline is presented by means of flow maps drawn from the results of a phenomenological model.
Journal ArticleDOI
Hydrodynamic Simulation of Horizontal Slurry Pipeline Flow Using ANSYS-CFX
TL;DR: The behavior of horizontal solid-liquid (slurry) pipeline flows was predicted using a transient three-dimensional (3D) hydrodynamic model based on the kinetic theory of granular flows as discussed by the authors.
Journal ArticleDOI
Estimation of the critical velocity in pipeline flow of slurries
TL;DR: In this paper, a detailed examination of the critical velocity in pipeline flow of non-colloidal slurries was carried out, and a set of improved critical velocity correlations were established by fitting the data to various forms of the standard equation.
Journal ArticleDOI
A CFD Based Correlation for Erosion Factor for Long-Radius Elbows and Bends
Jianrong Wang,Siamack A. Shirazi +1 more
TL;DR: In this article, a model for predicting sand erosion in 90 degree elbows and bends has been developed based on computational fluid dynamics (CFD), particle tracking and erosion data, and the predicted penetration rates are compared with available experimental data for several different elbows.