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Amir Nejat Vahid Abdollahi Koohyar Vahidkhah 《ournal of non Newtonian Fluid Mechanics》2011,166(12-13):689-697
A second-order lattice Boltzmann algorithm is used for Power-Law non-Newtonian flow simulation. The shear dependent behavior of the fluid is implemented through calculating the shear locally from the lattice distribution functions. A step by step verification procedure is taken to ensure the accuracy and the physical correctness of the numerical simulation. The flow past a series of tandem arrangement of two cylinders is computed in a confined domain. The effects of Reynolds number, the Power-Law index, and the distance between two cylinders on both the flow field and the drag coefficients of the cylinders are examined in detail. 相似文献
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Fardad Koohyar Abbas Ali Rostami Mohammad Javad Chaichi Farhoush Kiani 《Journal of solution chemistry》2011,40(7):1361-1370
Viscosities, refractive indices, and densities for ternary systems of (L-cysteine hydrochloride monohydrate [LCHCMH] + D-sorbitol
+ water) and (glycerol + D-sorbitol + water) and binary systems of ([LCHCMH] + water) and (D-sorbitol + water) have been measured
at several temperatures (between T=303.15 K and T=323.15 K) and mass fractions (0.1 to 0.8) at atmospheric pressure. For these mixtures, the experimental values of density
were correlated with an experimental equation and the experimental values of viscosity were correlated with the Jones-Dole
equation. 相似文献
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Abbas Mossazadeh Rostamkolahi Abbas Ali Rostami Fardad Koohyar Farhoush Kiani 《Chemical Papers》2013,67(11):1433-1441
Thermodynamic properties (densities and viscosities) of binary mixtures of diethyl phthalate (DEP) + bromocyclohexane, dibutyl phthalate (DBP) + 1,2-dichlorobenzene, and vinyl acetate (1) + dimethyl phthalate (DMP) (2), + diethyl phthalate (2), or + dibutyl phthalate (2) were measured over the whole range of mole fractions at atmospheric pressure and different temperatures (T = 298.15 K to 308.15 K). For these mixtures, their excess molar volumes (V E) and viscosity deviations (Δη) were calculated from the experimental data. These results were correlated with the Redlich-Kister polynomial equation to derive the coefficients and standard errors. 相似文献
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Tahereh Valizadeh Kiani Farhoush Gharib Farrokh Zabihi Fatemeh Koohyar Fardad 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2020,94(1):88-94
Russian Journal of Physical Chemistry A - Imatinib (Gleevec) is a drug that is applied to treat cancer. It inhibits the Bcr-Abl tyrosine-kinase and therefore, it can slow growth or result in... 相似文献
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Koohyar Vahidkhah Vahid Abdollahi 《Communications in Nonlinear Science & Numerical Simulation》2012,17(3):1475-1484
In this paper, deformation of a mass-less elastic fiber with a fixed end, immersed in a two-dimensional viscous channel flow, is simulated numerically. The lattice-Boltzmann method (LBM) is used to solve the Newtonian flow field and the immersed-boundary method (IBM) is employed to simulate the deformation of the flexible fiber interacting with the flow. The results of this unsteady simulation including fiber deformation, fluid velocity field, and variations of the fiber length are depicted in different time-steps through the simulation time. Similar trends are observed in plots representing length change of fibers with different values of stretching constant. Also, the numerical solution reaches a steady state equivalent to the fluid channel flow over a flat plate. 相似文献
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