Experimental Surface Profile of Dense Granular Media in Cylindrical Couette Flow

Arkadeep Kumar

doi:10.4028/www.scientific.net/AMM.110-116.776

Paper Titles

The Effect of Cutting Parameters on Surface Integrity in Hard Turning
p.751

The Effect of Surface Roughness on Sursulf, Gas and Plasma Nitride Coatings on Austenitic Stainless Steel Type AISI 316LN
p.758

Surface Plasmon Polaritons: Propagation Characteristics of Surface Plasmon Waves on Au and Ag at Optical Wavelengths
p.764

Viscous Potential Flow Analysis of Rayleigh-Taylor Instability of Cylindrical Interface
p.769

Experimental Surface Profile of Dense Granular Media in Cylindrical Couette Flow
p.776

Numericl Analysis Supersonic Cavity Unsteady Flow
p.783

Bead Geometry Optimization of Submerged Arc Weld: Exploration of Weighted Principal Component Analysis (WPCA)
p.790

Methods for Creating Uniform Irradiance for LED Luminaries with the Use of Reflectors
p.799

Effect of X-Ray Computed Tomography Scanning Parameters on the Estimated Porosity of Foam Specimens
p.808

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 110-116Experimental Surface Profile of Dense Granular...

Experimental Surface Profile of Dense Granular Media in Cylindrical Couette Flow

Abstract:

Granular materials have widespread use in the industry. The flow of granular media requires careful studies through experiments to understand the rheology of these complex materials. The present work determines the surface profile of dense granular media subjected to cylindrical Couette flow. A translation stage is used to obtain measurement of depth varying with radial distance. A depth gauge attached to the translation stage is used to measure the surface profile. Glass beads (average diameter 0.8-1 mm) and mustard seeds (average diameter 1.2-1.4 mm) are used as model granular materials. Two different Couette gaps are used (4cm and 3cm). Cylinders with smooth surfaces, as well as coated with emery paper are used. The surface profile varies with material, surface roughness of the cylinders, and the gap between the two cylinders. The comparison of the various cases has been done by graphical representation. The probable reasons for the development of such a surface profile are given.

You might also be interested in these eBooks

Mechanical and Aerospace Engineering, ICMAE2011

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 110-116)

Pages:

776-782

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.110-116.776

Citation:

Cite this paper

Online since:

October 2011

Authors:

Arkadeep Kumar

Keywords:

Couette, Free Surface, Granular, Non-Newtonian, Normal Stress Difference

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R. B. Bird, R. C. Armstrong, O. Hassager, Dynamics of Polymeric fluids , Vol 1, Fluid Mechanics, 2nd edition, John Wiley and Sons, pp.60-65.

Google Scholar

[2] P. R. Nott and K. K. Rao , An Introduction to Granular Flow, 1st edition (2008), Cambridge University Press.

Google Scholar

[3] R. B. Bird, W. E. Stewart , E. N. Lightfoot , Transport Phenomena , 2nd edition, John Wiley and Sons.

Google Scholar

[4] P. R. Nott and A. Singh (2002-2003) Experimental measurements of the normal stresses in sheared Stokesian suspensions, J. Fluid Mech, vol 490, pp.293-318.

DOI: 10.1017/s0022112003005366

Google Scholar

[5] Mehandia, V (2010) Kinematics and rheology of complex fluids: Active suspensions and granular materials, PhD theses, Indian Institute of Science, Bangalore, Chapter 4, 90-92, 103-107.

Google Scholar

[6] Venkatesh, B (2010), Rheological Measurements for Dense Granular Media, M.E. project report, Indian Institute of Science, Bangalore, Chapter 4, 34-52.

Google Scholar

[7] M. Shahinpoor and S. P Lin (1982), Rapid couette flow of cohesionless granular materials, Acta Mechanica, vol 42, 183-196.

DOI: 10.1007/bf01177191

Google Scholar