The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we report an exact 3D transparent boundary condition for the parabolic equation in a rectangular computational domain. It is an exact generalization of the well known 2D transparent boundary condition. The condition is based on an assumption that any wave that reaches a boundary of the computational domain is lost. It relates a boundary value of the field at any given longitudinal position...
In this paper a new model for 3D Poiseuille flow is presented. The model is based on applying a combined spectral-finite difference approach on the velocity-vorticity formulation of the Navier-Stokes equations. In 3D the dominating feature of the problem is non-normality of the eigenvectors. One measure to assess the non-normality is the transient energy response. The model is validated by comparing...
Computational aspects of the parabolic equation method are discussed: transparent boundary conditions for straight and bent Bragg waveguides, 3D finite-difference scheme in polar coordinates, estimation of radiation losses and fundamental mode stabilization.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.