ULiege - Aerospace & Mechanical Engineering http://metafor.ltas.ulg.ac.be/dokuwiki/ 2026-05-16T04:24:18+00:00 http://metafor.ltas.ulg.ac.be/dokuwiki/ http://metafor.ltas.ulg.ac.be/dokuwiki/_media/logo.png text/html 2016-03-30T13:23:04+00:00 Anonymous (anonymous@undisclosed.example.com) http://metafor.ltas.ulg.ac.be/dokuwiki/doc/user/elements/boundaries/convection?rev=1459344184&do=diff Convection Materials Since pressure/shear interactions are boundary conditions interactions (LoadingInteraction), no materials must be associated to the element. Element Therefore, the first step consist in defining an ElementProperties, as prp = ElementProperties(typeEl) prp.put(param1, value1) prp.depend(param1, fct1, Lock1)) #optional ... text/html 2024-12-09T10:40:25+00:00 Anonymous (anonymous@undisclosed.example.com) http://metafor.ltas.ulg.ac.be/dokuwiki/doc/user/elements/boundaries/flux?rev=1733740825&do=diff Heat Source/Flux Heat source elements and heat flux boundary elements can be applied using special finite elements. As any finite element, their definition require an ElementProperty object and an Interaction (HeatInteraction) object. There are no Material$x'$$y'$$z'$$^2$$Q_{src}$$$ q = \frac{Q_{src}}{4a b}~~~\text{if } x'\in [-a,~a],~~ y'\in [-b,~b], $$$a$$b$$x'$$y'$$Q_{src}$$$ q = \frac{Q_{src} 6\sqrt{3}}{ab \pi^\frac{3}{2}}~ e^{-3\left(\frac{x'}{a}\right)^2}~ e^{-3\left(\frac{y'}{b}\right)… text/html 2021-09-22T09:45:32+00:00 Anonymous (anonymous@undisclosed.example.com) http://metafor.ltas.ulg.ac.be/dokuwiki/doc/user/elements/boundaries/pressure_shear?rev=1632303932&do=diff Pressure and shear Pressure and shear boundary conditions can be applied using special finite elements defined on the boundary of the mesh. The geometry of these elements are lines in 2D corresponding to the boundary edges of the elements of the 2D mesh. In 3D, pressure elements are triangles or quads, depending of the shape of the facets of the elements of the mesh near the boundary.$\xi$$\eta$$\xi$$\eta$ text/html 2016-03-30T13:23:04+00:00 Anonymous (anonymous@undisclosed.example.com) http://metafor.ltas.ulg.ac.be/dokuwiki/doc/user/elements/boundaries/radiation?rev=1459344184&do=diff Radiation Materials Since radiation interactions are boundary conditions interactions (LoadingInteraction), no materials must be associated to the element. Element Therefore, the first step consist in defining an ElementProperties, as prp = ElementProperties(typeEl) prp.put(param1, value1) prp.depend(param1, fct1, Lock1)) #optional ...$ 5.67e^{-8} W/m^2K^4 $$ 5.67e^{-11} mW/mm^2K^4$$\epsilon = \frac{\epsilon_1 * \epsilon_2}{\epsilon_1 + \epsilon_2 - \epsilon_1 * \epsilon_2}$