TrueGrid® Advanced Training Outline

Course Content:
  Parameterization Strategies

Mesh density, geometry, and alternate topologies are covered. Also covered are principles in part decomposition so that parts are easily modified or re-used. Plugs (sections removed and replaced by a new part) will be discussed. Numerous topologies will be discussed.

Block Boundaries

We will look at both inter- and intra-part block boundaries and see how some of the new commands are learning to ignore these "invisible gluings". Other topics include using transition elements, creating orthogonal regions with a normal offset and, applying block boundaries to transformed parts. The rules for transitions are less restrictive and we will show how to take advantage of this. For example, a slave face of a transition may consist of several regions and the 1:3 or 2:4 rule only has to be fullowed by the entire region, not each individual region. There are new types of i transitions which allow for transitions in 2 directions at a time. Transitions are now available with quadratic elements.

Smoothing

We will look at determining which elliptic smoothing algorithm to use as well as when, where and how to use it. With some of the newer algorithms, making a high quality mesh can be as simple as laying out the multi-block structure, projecting the appropriate faces and invoking smoothing. The new Uniform smoothing on faces and solids can now be used routinely. The new Neumann boundary condition can used with the Uniform command produces some of the best meshes.

History Window

Though this topic is introduced in the Introductory Course, it is possible to perform quite sophisticated debugging of a mesh problem with all of the options that are available.

Re-entrant Part / Part Database

The long-awaited re-entrant part capability will be new to version 3.0, due to be released in early 2004. The associated part database was actually started in version 2.0 when we added the ability to save block boundaries and read them back from a file in another part. The usefulness of this ability will be demonstrated and extended to include the new features.

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