Shack-Hartmann wavefront sensor (SHWFS) has been widely used in adaptive optics (AO) systems to detect phase distortion characteristics. In laser communication, target detection, vision and other application fields, the performance of SHWFS is affected by bright skylight scattered light, which restricted working ability AO system severely. Therefore, this paper proposes a new polarized (p-SHWFS...

In this paper, we describe our study of the mixed convection a Boussinesquian Bingham fluid in vertical channel absence and presence an external uniform magnetic field normal to walls. The velocity, induced field, temperature are analytically obtained. A detailed analysis is conducted determine plug regions relation values number, buoyancy parameter, Hartmann number. particular, velocity decrea...

In this paper, we study the steady and unsteady magneto hydro dynamic (MHD) viscous, incompressible free and forced convective flow of an electrically conducting Newtonian fluid through a porous medium in the presence of appreciable thermal radiation heat transfer and surface temperature oscillation taking hall current into account. The fluid is assumed to be optically-thin and magnetic Reynold...

[3] I.Y. Song, M. Piattini, Y.P. Chen, S. Hartmann, F. Grandi, J. Trujillo, A.L. Opdahl, F. Ferri, P. Grifoni, M.C. Caschera, C. Rolland, C. Woo, C. Salinesi, E. Zimnyi, Ch. Claramunt, F. Frasincar, G.J. Houben, Ph. Thiran, eds.: Advances in Conceptual Modeling Challenges and Opportunities. vol. 5232 of Lecture Notes in Computer Science, Workshop Proceedings of the 27th International Conference...

This paper analyses numerically the quasi-two-dimensional flow of an incompressible electrically conducting viscous fluid past a localized zone of applied magnetic field, denominated a magnetic obstacle. The applied field is produced by the superposition of two parallel magnetized square surfaces, uniformly polarized in the normal direction, embedded in the insulating walls that contain the flo...

In this paper, we examine the combined effects of thermal radiation, buoyancy force and magnetic field on oscillatory flow of a conducting optically thin dusty fluid through a vertical channel filled with a saturated porous medium. The governing partial differential equations are obtained and solved analytically by variable separable method. Numerical results depicting the effects of various em...

In the present investigation heat transfer character due to viscous dissipation and magnetic field applied to unsteady boundary layer fluid flow past a stretching sheet is investigated. The equations governing the unsteady boundary layer fluid flow are constructed and non-dimensionalized. The non-dimensional equations are discretized using implicit finite difference method of Crank-Nicolson typ...