Sedimentation of a circular disk in power law fluids

Nitin, S.; Chhabra, R.P.

doi:10.1016/j.jcis.2005.08.024

Cited by 13 publications

(2 citation statements)

References 24 publications

(40 reference statements)

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“…The opposite effect is observed with shear-thickening fluids, that is, the drag is lower than that in a Newtonian fluid. Likewise, limited numerical predictions of freely falling disks (flat surface oriented normal to the direction of gravity) in power-law liquids suggest an increase in drag of up to 30-40% due to shear-thinning viscosity ( Nitin and Chhabra, 2006 ). All in all, currently available numerical results are restricted to a very few axisymmetric shapes of particles and of fixed orientation in moving liquids.…”

Section: Effect Of Particle Shape On Terminal Falling Velocity and Drmentioning

confidence: 99%

Particulate systems

Chhabra¹,

Richardson²

2008

Non-Newtonian Flow and Applied Rheology

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Section: Effect Of Particle Shape On Terminal Falling Velocity and Drmentioning

confidence: 99%

Particulate systems

Chhabra¹,

Richardson²

2008

Non-Newtonian Flow and Applied Rheology

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“…In recent past, a lot of studies were done to investigate power-law fluid flow under various conditions. Nitin and Chhabra [6] considered the axi-symmetric twodimensional power-law fluid moving past a circular surface. The heat transport analysis for the flow of an incompressible power-law fluid with forced convection over a heated elliptical cylinder was done by Bharti et al [7].…”

Section: Introductionmentioning

confidence: 99%

On the solutal and thermal Marangoni convection arising in the self-rewetting fluid flow under hydromagnetic consideration

Chaurasiya

Tripathi²,

Singh

2023

Scientia Iranica

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In the present research article, we address the magnetically controlled thermal and solutal Marangoni convection in the flow of self-rewetting power-law liquid over a disk, in the existence of a space dependent heat source. The self re-wetting property of fluid is modelled by considering a quadratic dependence of surface tension on temperature and species concentration. The aforementioned problem is modelled by simplified Navier-Stokes equations. Identifying the appropriate transform variables is essential for developing ordinary differential equations from original partial differential equations that describe the flow conditions. The resulting ordinary differential equations are solved by using the bvp4c routine of MATLAB and numerical solutions are presented via Graphs and tables, illustrating the impact of several factors on fluid velocity, temperature, and concentration. Computation of the quantities of physical interest such as Nusselt and Sherwood numbers are also done from those numerical solutions. One of the key findings of present research work is that the Marangoni convection works differently for pseudo-plastic fluid and dilatant fluid.On increasing thermal Marangoni convection the temperature of dilatant fluid reaches a peak value much closer to the disk than temperature of pseudo plastic fluid.

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