Search Results - "Huilgol, R."

On the impact of nonlinear continuum mechanics on particle distribution functions for Newtonian and non-Newtonian fluids: Applications to the flows of Bingham fluids by Huilgol, R. R.

“…From the lattice Boltzmann equation, it is possible to derive the continuity equation and Cauchy’s equations of motion for a compressible medium, when one uses…”
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From mesoscopic models to continuum mechanics: Newtonian and non-newtonian fluids by Huilgol, R.R., Kefayati, G.H.R.

“…•Critical examination of the BGK approximation to derive constitutive equations for Newtonian fluids.•Limitations due to grid dependence of viscosity in…”
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Natural convection problem in a Bingham fluid using the operator-splitting method by Huilgol, R.R., Kefayati, G.H.R.

“…[Display omitted] •The flow in a square cavity due to heated walls is studied for a Bingham fluid.•The constitutive equation for the Bingham fluid is used…”
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Comments on the paper by M. F. Letelier and D. A. Siginer : On the flow of a class of viscoinelastic–viscoplastic fluids in tubes of non-circular contour. International Journal of Engineering Science, Vol. 45 (2007), 873–881 by Huilgol, R.R.

“…It is shown that the solution to the steady flow of a Newtonian fluid in a pipe of equilateral triangular cross-section is wrong, for it is based on an…”
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Open and endovascular repair of aneurysms affecting the distal extracranial internal carotid artery: case series by Mukherjee, P, Huilgol, R, Graham, A, Fagan, P

“…Three cases of internal carotid artery aneurysm affecting the distal cervical segment were retrospectively reviewed. Two patients underwent open surgical…”
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Application of the augmented Lagrangian method to steady pipe flows of Bingham, Casson and Herschel–Bulkley fluids by Huilgol, R.R., You, Z.

“…The augmented Lagrangian method is applied to the steady flow problems of Bingham, Casson and Herschel–Bulkley fluids in pipes of circular and square…”
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A particle distribution function approach to the equations of continuum mechanics in Cartesian, cylindrical and spherical coordinates: Newtonian and non-Newtonian fluids by Huilgol, R.R., Kefayati, G.H.R.

“…The evolution equations for the particle distribution functions are written in a divergence form applicable in three dimensions. From this set, it is shown…”
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Entry flows of Bingham plastics in expansions by Mitsoulis, Evan, Huilgol, R.R.

“…Entry flows through abrupt expansions are studied numerically for Bingham plastics exhibiting a yield stress. The Bingham constitutive equation is used with an…”
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Comments on the paper by Y-H. Wu and K-F Liu : Start-up flow of a Bingham fluid between coaxial cylinders under a constant wall shear stress journal of non-Newtonian fluid mechanics 223 (2015), 116–121 by Huilgol, R.R.

“…The contents of the paper raise several doubts for two reasons. Firstly, the assumptions regarding the shear stress and the velocity profile are wrong for they…”
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On the description of the motion of the yield surface in unsteady shearing flows of a Bingham fluid as a jerk wave by Huilgol, R.R.

“…In the unsteady shearing flows of a Bingham fluid, the yield surface may move laterally into the fluid with a finite speed. The exact nature of this motion can…”
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Prolegomena to variational inequalities and numerical schemes for compressible viscoplastic fluids by Huilgol, R.R., You, Z.

“…Firstly, a summary of the development of the constitutive equation for an incompressible Bingham fluid, the variational inequality and an operator-splitting…”
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Cessation of Couette and Poiseuille flows of a Bingham plastic and finite stopping times by Chatzimina, Maria, Georgiou, Georgios C., Argyropaidas, Ioannis, Mitsoulis, Evan, Huilgol, R.R.

“…We solve the one-dimensional cessation Couette and Poiseuille flows of a Bingham plastic using the regularized constitutive equation proposed by Papanastasiou…”
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A systematic procedure to determine the minimum pressure gradient required for the flow of viscoplastic fluids in pipes of symmetric cross-section by Huilgol, R.R.

“…Using two Lemmas proved by Mosolov and Miasnikov in 1965 for Bingham fluids, a systematic procedure is developed to determine the minimum pressure drop per…”
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Application of the Lambert W function to steady shearing flows of the Papanastasiou model by You, Z., Huilgol, R.R., Mitsoulis, E.

“…Using the Lambert W function, the constitutive relation of the Papanastasiou model is inverted so that the second invariant of the first Rivlin–Ericksen tensor…”
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On the importance of the pressure dependence of viscosity in steady non-isothermal shearing flows of compressible and incompressible fluids and in the isothermal fountain flow by Huilgol, R.R., You, Z.

“…Four steady non-isothermal viscometric flows of a class of compressible and incompressible fluids with a viscosity depending on the shear rate, pressure and…”
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Refractory long QT syndrome and the role of left cardiac sympathetic denervation by Cheruvu, C., Huilgol, R., Grabs, A., Thorburn, C., Kuchar, D., Walker, B., Subbiah, R

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A fast numerical scheme for the Poiseuille flow in a concentric annulus by Huilgol, Raja R., Georgiou, Georgios C.

“…•Poiseuille flow in a concentric annulus of generalised Newtonian, viscoplastic and PTT fluids is solved.•Fast and accurate algorithm to satisfy no-slip…”
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On kinematic conditions affecting the existence and non-existence of a moving yield surface in unsteady unidirectional flows of Bingham fluids by Huilgol, R.R.

“…If a Bingham fluid at rest undergoes a unidirectional flow through the sudden motion of one of its boundaries and the diffusion equation applies in the yielded…”
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On the derivation of the symmetric and asymmetric Hele–Shaw flow equations for viscous and viscoplastic fluids using the viscometric fluidity function by Huilgol, R.R.

“…In viscometric flows, the viscometric fluidity function is used to define the shear rate as a function of the shear stress. This relationship is unique even if…”
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Carotid-Vertebral Artery Bypass for Symptomatic Vertebral Artery Pseudoaneurysm by Krishnaswamy, M, Westcott, M, Huilgol, R

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