Geometric Model, or simply Model, is the name we use for the collection containing all geometric shapes of a problem. Besides being an object container the model helps to link the contained objects with related material properties, field sources, and boundary conditions.
The types of geometric objects that QuickField contains are vertex, edge, and block.
Each Vertex represents a point. Point coordinates could be either explicitly specified by the user or automatically calculated by QuickField at the intersection of two edges. For each vertex you can define its mesh spacing value and its label. The mesh spacing value defines approximate distance between mesh nodes in the neighborhood of the vertex. Define vertex label to link a vertex with, for example, a line source or load.
Each Edge represents a linear segment or a circular arc connecting two vertices. Model edges do not intersect each other. Creating new model edge QuickField splits it as many times as needed at intersection points with existing model edges and at the points represented by existing model vertices. QuickField also automatically creates new model vertices representing intersection points of the new edge and splits the old model edges at these points. Define edge label to link an edge with, for example, related boundary conditions.
Each Block represents a continuous subregion of the model plane. External block boundary is a sequence of edges. Blocks might contain holes. Each of internal boundaries separating a block from its holes is either a sequence of edges or a single isolated vertex.
All blocks included in field calculation must be meshed and labeled. QuickField can mesh any subset of model blocks. The mesh density depends on mesh spacing values defined for model vertices. These values are either calculated automatically by QuickField or specified for particular vertices by the user. Define block label to link the block with, for example, related material properties or distributed field sources.
Related Topics
Editing the Model