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Brownian dynamic simulation to determine rheological properties of FENE dumbbell suspensions

Housam Binous
Organization: KFUPM
Department: Chemical Engineering
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The two notebooks perform Brownian Dynamic simulations in order to compute rheological properties of FENE dumbbell suspensions. When the applied flow is shear flow, we calculate the first and second normal stresses as well as the viscosity. For the case of an applied extensional flow, we obtain the value of the viscosity. The user can easily change the values of the time step, shear and elongation rates. The values obtained by the notebooks are in agreement with the results found, using a FORTRAN 77 program, by H. Binous and R. J. Phillips, Dynamic Simulation of One and Two Particles Sedimenting in Viscoelastic Suspensions of FENE Dumbbells, Journal of Non-Newtonian Fluid Mechanics, Vol. 83, pp 93-130, 1999. Details about the governing equations and non-Newtonian fluids can be found in the above reference.

*Applied Mathematics > Numerical Methods
*Engineering > Chemical Engineering
*Engineering > Mechanical and Structural Engineering
*Science > Physics > Fluid Mechanics

Brownian dynamic, three dimensional simulations, rheological properties, first and second normal stresses, viscosity, FENE dumbbell suspensions, non-Newtonian behavior, shear flow, extensional flow
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Elongational_Dumbbells.nb (237.9 KB) - Mathematica Notebook
Shear_Dumbbells.nb (774.2 KB) - Mathematica Notebook