Page 24 - Process Modelling and Simulation With Finite Element Methods

Introductiort to FEMLAB 11

Figure 0.9 Point settings dialogue box. Here point 13 which is highlighted corresponds to the red
circled vertex in Figure 0.8. The k-& model has an extra point-wise viscosity associated with
vertices as point coefficients in the FEM weak formulation. This page provides data entry.

Summary
FEMLAB has a powerful GUI that provides easy entry to try out “what if’
scenarios and explore modelling methods/types without the investment of
“programming time.”
FEMLAB has unique modelling advantages in “multiphysics” and “extended
multiphysics” which may make FEMLAB the only viable modelling tool for
certain applications.
FEMLAB provides a method of automatically creating MATLAB m-file source
code that reduces the programming effort for setting up more complicated
models. Exporting solutions to MATLAB also makes post solution analysis
more flexible.
FEMLABlMATLAB programming provides automation opportunities, including
running efficiently (least memory/processor overhead) as a background job.

0.2 An Example from the Model Library

Figures 0.1 - 0.14 run through the major data entry points for PDE models with
an example of the turbulent static mixer from the Model Library, constructed on
top of the k-E turbulence model application mode. The figure captions tell the
story, and the screen captures illustrate some of the key features of the FEMLAB
GUI. This is the only time that the book will show FEMLAB GUI screen
captures. From here on out, we will describe the information content for model
specification in terms of the data entry needed for the dialogue boxes used in
each model. This limitation to the printed word and graphical results of the
models is a consequence of a desire to discuss many models, rather than to view