Abstract: Relations expressing the effects of unidirectional striated roughness on hydrodynamic quantities, relative to the normal x–y coordinate system are derived. It is shown that the angle between the ...

Abstract: A mathematical treatment of the problem of lubrication of bearing surfaces exhibiting two-dimensionally distributed uniform or isotropic roughness, is presented. The result obtained previously by ...

Abstract: A new method for treating roughness problems in hydrodynamic lubrication is presented. The approach consists of an expansion of the pressure by means of the perturbation parameter ε which is ...

Abstract: No Abstract Available.

Abstract: Surface roughness-induced hydrodynamic gas lubrication theory including rarefaction effects is used to explain the effects of surface roughness on the magnetic head-medium spacing. Since video-recording ...

Abstract: General analyses are developed to predict the role of surface roughness, rarefaction effects, and various operating parameters in thin-film gas lubrication. Both shear- and squeeze-film effects ...

Abstract: Anisotropic mesh adaptation has been used to accelerate computation in several engineering fields, and we show that it can also be used for topology optimization. We use a combination of filtered continuous sensitivities ...

Abstract: A phenomenological kinetic energy theory of buoyant axisymmetric multiphase plumes is constructed, with particular attention to the modeling of the dispersed phase. The dissolution is treated by means of the Ranz-Marshall ...

Abstract: A three-dimensional model for stiffness and hygroexpansion of fiber and particle composite materials is presented. The model is divided into two steps, first a homogenization of a single fiber with a coating representing ...

Abstract: Small cyclonic spiral eddies with a scale of 10 km are very frequently observed, both from satellites and space shuttles, at the ocean surface. The authors suggest that they are the sea surface signature of ageostrophic ...