Comparative Study of Rheological Properties of Suspensions by Computer Simulation of Poiseuille and Couette Flows
V. A. KUZKIN1,2, A. M. KRIVTSOV1,2, A. M. LINKOV2,3
1Saint-Petersburg State Polytechnical University, ul. Politekhnicheskaya 29, Saint-Petersburg, 195521 Russia
2RzeszГіw University of Technology, al. PowstaЕ„cГіw Warszawy 12, RzeszГіw, 35959 Poland
3Institute for Problems of Mechanical Engineering, Russian Academy of Sciences, Bolshoi pr. V.O. 61, Saint-Petersburg, 199178 Russia
Keywords: hydraulic fracture, proppant, suspension, effective properties, Poiseuille and Couette flows, particle dynamics
Abstract
The article presents results of numerical experiments performed to evaluate the effective rheological properties of a mixture of a fluid with solid particles. The numerical simulation of the Couette and Poiseuille flows shows that in the both cases, the effective viscosity and non-Newtonian properties of the suspension coincide to the accuracy of standard deviation. The authors define the area of applicability of Newtonian fluid model to modeling fluid and proppant mix and determine conditions for plugs at high concentrations of proppant.
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