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They are not necessarily pertaining to the x or y coordinates in the source or destination. Several cases are illustrated in the table below. Part 2: Mapping Variables with General Extrusion Operators - COMSOL Right-click study 1 to compute the model. It can be used for a variety of different purposes, examples of which are presented here. COMSOL Multiphysics includes built-in features pertaining to such physical effects. The general extrusion operation applies a rotational transform. The video shown below uses the latter of the two strategies to model a 26-meter excavation. Extruding Data Along a Direction Extruding Data Along a Direction. A circular micro-electrode array with three phases is designed and prototyped using PolyMUMPs process for AC electro-osmotic flow pumping. Add boundary 8 and change the y-axis data expression to v and use millimeters as the unit. General Extrusion coupling operator settings. The top and bottom surfaces are thermally insulated, and there are no heat sources. The relationship between the source and destination points is therefore, If we want an explicit source-destination mapping of the form. If the nonlocal couplings you want to simulate are not included in the built-in features of COMSOL Multiphysics, you can use the strategies youve learned today to implement them. Therefore we want stress in the y-direction. These are the parameters we will be using later on, which represent in-situ stresses, properties of the metal struts, excavation steps, along with a couple other related parameters. Good luck You can fix this by pressing 'F12' on your keyboard, Selecting 'Document Mode' and choosing 'standards' (or the latest version First, did you only the repeating unit in your graphics window before using the General Extrusion and Periodic Boundary conditions node or was it the entire geometry? General Extrusion Variable - comsol.it Next, let's take a look at the settings of the . Variable: comp1.Disp. Thanks in advance. We begin by adding the General Extrusion coupling operator from the definitions toolbar as shown in the screenshot below: Extrusion operators can be used to make couplings between points in the same component or different components. Considering a variable defined on the xy-plane within a unit square centered at the origin, as shown above, it is possible to implement a variety of transforms simply via different destination maps, and leaving the source map unchanged. General Extrusion, Linear Extrusion . We want a depth ranging from 0 to -26 meters with a step size of two meters. Now we can add the boundary constraints, including a symmetry on the left, a fixed constraint for the bottom boundary, and a roller for the right boundaries. There are four sets of results showing the deformation of the soil and retaining wall, the plastic deformation, wall deflection, and the surface settlement. The temperature will vary linearly with x. The Copy Domain mesh feature can copy the mesh exactly, thereby avoiding any interpolation of the flow solution between meshes. listed if standards is not an option). I have only one small question, if you dont mind, you could maybe write the expressions of the variable disp. -- Given an expression defined on a plane, e.g., the xy-plane, it is desired to map this . To implement the normal current boundary condition on side 1, we need access to the electric potential V_2 on side 2. This computed flow field can then be used as input for the convection-diffusion equation governing the species concentration. General Extrusions, Inc. produces aluminum extrusions in compliance with RoHS (Restriction of Hazardous Substances) requirements.