Difference between revisions of "Simulation/Comsol"
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| + | Comsol is a generic FEM differential equation solver with built-in support for multiple physical models. It is most commonly used in our group for solving steady-state temperature distributions and waveguide modes, but it can be used to solve transient equations as well. One of the benefits of Comsol is that it can use multiple physical models simultaneously - Joule heating, for example, can be used to evaluate the thermal properties of any forward-biased diode, taking contact design into account. It does not, however, have built-in support for semiconductor transport equations. | ||
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== Installation == | == Installation == | ||
| − | Our group has a copy of Comsol that can be installed from CDs kept in 2221A. The license file can be obtained here: | + | Our group has a copy of Comsol that can be installed from CDs kept in 2221A. The license file can be obtained here: [[Media: Comsol_license.txt]]. |
| + | Save the linked file as a .dat. | ||
| + | |||
| + | == General operation == | ||
| + | |||
| + | When you open Comsol, the Model Navigator is the first window to pop up. This is where you select the relevant differential equations to solve. Choose the dimension of the problem first (upper right-hand corner), as this affects the physical models available to you. To choose a single model, click on it. To use multiple models, click the "Multiphysics" button in the lower right-hand corner, then use the add key to add all the models you intend to use. | ||
| + | |||
| + | == Thermal modeling == | ||
| + | |||
| + | == Mode solving == | ||
| + | |||
| + | == Examples == | ||
Revision as of 14:05, 5 April 2010
Comsol is a generic FEM differential equation solver with built-in support for multiple physical models. It is most commonly used in our group for solving steady-state temperature distributions and waveguide modes, but it can be used to solve transient equations as well. One of the benefits of Comsol is that it can use multiple physical models simultaneously - Joule heating, for example, can be used to evaluate the thermal properties of any forward-biased diode, taking contact design into account. It does not, however, have built-in support for semiconductor transport equations.
Installation
Our group has a copy of Comsol that can be installed from CDs kept in 2221A. The license file can be obtained here: Media: Comsol_license.txt. Save the linked file as a .dat.
General operation
When you open Comsol, the Model Navigator is the first window to pop up. This is where you select the relevant differential equations to solve. Choose the dimension of the problem first (upper right-hand corner), as this affects the physical models available to you. To choose a single model, click on it. To use multiple models, click the "Multiphysics" button in the lower right-hand corner, then use the add key to add all the models you intend to use.
