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-   -   Mental model when define and modify block boundary (http://www.cfd-online.com/Forums/main/2713-mental-model-when-define-modify-block-boundary.html)

Herb Schilling October 20, 2000 11:47

Mental model when define and modify block boundary
 
Hello all,

We are writing a 2D structured gridding package for a specific application. One of the design issues has to do with whether the block boundaries are defined by just the boundary grid points or by a smooth curve on which the grid points lie.

There are many implementation pros and cons to this issue but from a user's perspective how do you like to think about the block boundary:

1. Just points that can be manipulated as points

2. Points on a smooth curve

Thanks in advance.

John C. Chien October 20, 2000 22:11

Re: Mental model when define and modify block boun
 
(1). If the solver requires only the mesh point location, then, (x,y,z) of a mesh point is all you need. (2). If the solver require the edge curve of the mesh (cell), then, you need to provide the curve information. (3). As a user, I try not to worry about it, unless, I have to write the interface (between the mesh and the solver), which is unlikely for average users who are interested in applications.


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