Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Alam, Meheboob"'
Autor:
Saha, Saikat, Alam, Meheboob
The hydrodynamics and rheology of a sheared dilute gas-solid suspension, consisting of inelastic hard-spheres suspended in a gas, are analysed using anisotropic Maxwellian as the single particle distribution function. The closed-form solutions for gr
Externí odkaz:
http://arxiv.org/abs/1706.04457
Autor:
Ravichandir, Shashank, Alam, Meheboob
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2996 Issue 1, p1-12, 12p
Publikováno v:
Physical Review E, vol. 89, art. no. 042203 (2014)
A new method is introduced to simulate jamming of polyhedral grains under controlled stress that incorporates global degrees of freedom through the metric tensor of a periodic cell containing grains. Jamming under hydrostatic/isotropic stress and ath
Externí odkaz:
http://arxiv.org/abs/1402.5563
Publikováno v:
Physical Review E 84, 030301 2011
The average number of constraints per particle $< C_{total} >$ in mechanically stable systems of Platonic solids (except cubes) approaches the isostatic limit at the jamming point ($< C_{total} > \rightarrow 12$), though average number of contacts ar
Externí odkaz:
http://arxiv.org/abs/1104.4933
Publikováno v:
Physical Review E 82, 051304 2010
A mechanically-based structural optimization method is utilized to explore the phenomena of jamming for assemblies of frictionless Platonic solids. Systems of these regular convex polyhedra exhibit mechanically stable phases with density substantiall
Externí odkaz:
http://arxiv.org/abs/1008.2475
Publikováno v:
Journal of Fluid Mechanics (2008), vol. 615, pp. 293-321
The linear stability analysis of an uniform shear flow of granular materials is revisited using several cases of a Navier-Stokes'-level constitutive model in which we incorporate the global equation of states for pressure and thermal conductivity (wh
Externí odkaz:
http://arxiv.org/abs/0811.2459
Publikováno v:
Physical Review E, vol. 77, 036322 (2008, march)
Linear stability and the non-modal transient energy growth in compressible plane Couette flow are investigated for two prototype mean flows: (a) the {\it uniform shear} flow with constant viscosity, and (b) the {\it non-uniform shear} flow with {\it
Externí odkaz:
http://arxiv.org/abs/0804.0069
Publikováno v:
Physics of Fluids, vol. 18, 034103 (2006, March)
Nonmodal transient growth studies and estimation of optimal perturbations have been made for the compressible plane Couette flow with three-dimensional disturbances. The maximum amplification of perturbation energy over time, $G_{\max}$, is found to
Externí odkaz:
http://arxiv.org/abs/0804.0065
Autor:
Gayen, Bishakdatta, Alam, Meheboob
Using particle simulations of the uniform shear flow of a rough dilute granular gas, we show that the translational and rotational velocities are strongly correlated in direction, but there is no orientational correlation-induced singularity at perfe
Externí odkaz:
http://arxiv.org/abs/0802.0056
Autor:
Lakkaraju, R., Alam, Meheboob
Publikováno v:
Journal of Fluid Mechanics, vol. 592, 221-231 (2007)
The effect of Prandtl number on the linear stability of a plane thermal plume is analyzed under quasi-parallel approximation. At large Prandtl numbers ($Pr>100$), we found that there is an additional unstable loop whose size increases with increasing
Externí odkaz:
http://arxiv.org/abs/0802.0059