Topology Optimization of a Tesla Microvalve This new model tutorial performs a topological optimization for a Tesla microvalve. In the xw edit field, type 1. Results The following plot shows the temperature as a function of position: The model couples the physics phenomena involved in one way only. If the operation fails to determine how to collapse a face you get the error “Failed to determine how to collapse this face.

comsol multiphysics 4.3b

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comsol multiphysics 4.3b

Average flux at the flux boundary in the detailed 2D model solid blue line and the 1D homogenized approximation dashed green line. Coil Group is now a setting in the Single-Turn Coil feature and is no longer available as a separate feature.

In this example model, the material properties multiphysicx for glycerol: It is defined in Parameters under Global 4.b. In the da edit field, type Boundary 39 By selecting only one of the fillets you can save time generating the mesh while testing parameter values. Both single-turn and multi-turn coil models are comsop for both 2D and 3D.

Thermal Contact Thermally resistive thin layers with thermal conductance that varies with contact pressure. To see the magnitude of the depletion in the y direction more clearly, plot the y-component of the mesh displacement. The operation automatically determines the short edges to collapse, if any. For the load case, the horizontal x direction normal stress is evaluated.


This Just In: COMSOL Multiphysics 4.3b

This model deals with the current and potential distribution around one pair of electrodes. In this model, the medium is not moving.

comsol multiphysics 4.3b

Davies, Linear Statics Benchmarks Vol. The Electric Currents interface has a contact resistance boundary condition available at pairs, which uses the thin-film approximation. The low bass notes from the music system or home theater in the living room can shake the windows and make the floor vibrate.

New Models The following models are new to the model library of the Corrosion Module: Concentration chds 1 Compare this multipuysics plot with that in Figure 2.

Before adjusting individual mesh parameters start by restoring the mesh multphysics the Normal size settings. It is also possible to evaluate the stress distribution in the cross section, given a set of section forces: The feature is the first of its kind in the COMSOL environment and is particularly suitable for geometries such as long pipes and thin wires where the electric potential variation within the electrode in the normal direction to the electrode surface is negligible. To start a new discussion with a link back to this one, click here.

As already mentioned in the introduction, this term is difficult to determine and also sensitive to noise, so it is often set to 0.

Finally, compare the updated stiffness value for the updated model geometry dimensions with the ideal one. Historically, the SST turbulence model has mainly been used to simulate exterior flows, typically wings and wing-like geometries as well as turbines. The design can be optimized by distributing a specific amount of material within the modeling domain.


A typical application of this would be to trim surface objects either by intersecting it with a multiphyscis object or by subtracting it from an overlapping surface.

(PDF) Comsol Multiphysics | Maria Eugenia Becerril Ortiz –

Partition your 3D geometry model with a Work Plane and create a separate 2D model on the resulting Cross Section geometry. Note how the same operator can be used to retrieve different data. As expected the increase of the growth rate parameter results in even lower quality.

Some of these faces are already meshed, as they form the boundary to the solder joints. If you are not using the cluster type Not distributed, make sure to set the Number of nodes to 1.

comsol multiphysics 4.3b

This new model tutorial performs a topological optimization for a Tesla microvalve. Heating tubes and direction of the fluid flow Model Definition The first consideration when modeling should always be the true dimension of the problem. Related to this is a new utility for axisymmetric geometry models: