Almost periodic homogenization of a generalized Ladyzhenskaya model for   incompressible viscous flow
  The paper deals with the existence and almost periodic homogenization of some model of generalized Navier-Stokes equations. We first establish an existence result for non-stationary Ladyzhenskaya equations with a given non constant density. The external force depends nonlinearly on the velocity. Next, to proceed with homogenization, as the density of the fluid is non constant, we combine the sigma-convergence method with some compactness arguments. 
Hermann Douanla and Jean Louis Woukeng
math.AP