Design of industrial slurry pipelines is usually performed by applying semi-empirical procedures, requiring a significant experimental study for each project. The mechanisms of suspension flow are not yet completely understood and existing predictive models cover only some aspects of uniform or closely graded particle slurry flows. This paper presents a computational technique for prediction of the velocity and concentration profile in slurry pipelines based on computational fluid dynamics. This model gives numerical solutions for the concentration and velocity distributions in the pipeline cross-section. The model prediction and experimental concentration and velocity profiles were found to be in good agreement. The theoretical model developed in this work represents the synthesis of hydrodynamic and interparticle interaction effects within the framework of the equations of conservation of momentum and mass. The predicted concentration profile and velocity piofile by Eulerian model was compared with the experimental one collected from liteiature and found satisfactory. Future scope includes further investigations into velocity profiles as there is to improve the velocity profiles. The present model including the associated boundary conditions is complete in the sense that no experimentally determined slurry pipeline flow data are required as input data. In this sense the present model can be considered superior to the corelation based empirical model.
Computational technique to predict the velocity and concentration profile for solidliquid slurry flow in pipelines
2007
27 Seiten, 13 Bilder, 5 Tabellen, 44 Quellen
Aufsatz (Konferenz)
Englisch
Minimize power consumption in slurry transport. Accurately predict critical velocity
Tema Archiv | 2008
|Calculations predict leak-area in gas pipelines
Tema Archiv | 1991
|Control of scale deposit problems in slurry pipelines
Tema Archiv | 2007
|BASE | 2021
|