Introduction

In the shape definition approach, cross-sections are defined based on predefined templates that implement specific configurations. Table 1 lists the various shapes that are available under this option. While the topology of each section is prescribed, its dimensions and material properties are parameterized.

Group ShapeTypes
Solid CIRCULAR_SECTION RECTANGULAR_SECTION TRIANGULAR_SECTION
Open walled C_SECTION I_SECTION L_SECTION
T_SECTION Z_SECTION CIRCULAR_ARC
Closed walled RECTANGULAR_BOX DOUBLE_BOX CIRCULAR_TUBE
TUBE_WITH_FIN FLATTENED_TUBE
Airfoil AIRFOIL_NO_WEB AIRFOIL_ONE_WEB
IH_60_SECTION HIGH_LIFT_DEVICE
Table 1. Shape Library cross-sectional shapes

Typical definition

The definition of a cross-section configuration using the shape builder approach has the following form, where the various entries depend on the specific shape being defined.

@ShapeType_DEFINITION {
@ShapeType_NAME {ShapeName} {
@OPTION_DEFINITION {o1, o2, ...}
@DIMENSIONS {
@DIMENSION_01 {d1}
@DIMENSION_02 {d1}
...
}
@MATERIALS {
@MATERIAL_01 {Mat1}
@MATERIAL_02 {Mat2}
...
}
@AIRFOIL_SHAPE_NAME {AirFoilName}
@NUMBER_OF_CONTROL_POINTS {Ncp}
@IS_DEFINED_IN_FRAME {FrameName}
@MESH_DENSITY {md}
@COMMENTS {CommentText}
}
}

NOTES