Quantitative test of the time dependent Gintzburg-Landau equation for   sheared granular flow in two dimension
  We examine the validity of the time-dependent Ginzburg-Landau equation of granular fluids for a plane shear flow under the Lees-Edwards boundary condition derived from a weakly nonlinear analysis through the comparison with the result of discrete element method. We verify quantitative agreements in the time evolutions of the area fraction and the velocity fields, and also find qualitative agreement in the granular temperature. 
Kuniyasu Saitoh and Hisao Hayakawa
cond-mat.soft