• preparing ice for gridding
  ◦ close trailing edge of airfoil
  ◦ extend ice to reference airfoil
• domain decomposition and grid generation
  ◦ wake
  ◦ viscous sublayer block
  ◦ near field block(s)
  ◦ outerblock
• modifying block boundaries and grids
  ◦ reshaping and redistributing points along block boundaries
  ◦ dividing grids along grid lines
  ◦ merging one-to-one abutting grids that share entire edges
  ◦ smoothing grids across shared edges of blocks
  ◦ performing interior grid smoothing
  ◦ setting cell spacing along an edge to match cell spacing of adjacent grids
• analyzing grid quality
  ◦ aspect ratio of grid cells
  ◦ orthogonality of grid cells
  ◦ skewness of grid cells
  ◦ stretching ratio in the I direction at each grid point
  ◦ stretching ratio in the J direction at each grid point
  ◦ grid cell shape; e.g., twisted, concave, degenerate
• output for flow solver
  ◦ grid output (CGNS or PLOT3D format)
  ◦ create WIND input file
• utilities
  ◦ scripts
  ◦ undo and redo
  ◦ saving and restoring state
  ◦ saving extruded wing

For more information on these capabilities, see the SmaggIce v1.8 User Manual (PDF).

SmaggIcie Version 1.2
Version 1.2 of the SmaggIce software is available for several UNIX systems as well as the PC Windows platform.

SmaggIce v1.2 provides several interactive tools including ice shape measurement, preparing iced geometry, ice shape control and artificial ice shape construction.

Ice Shape Measurement: Ice shape measurement is used to characterize ice shapes. The user can make measurements of the data on the screen, recording those measurements in a table, and saving them to a file. Measurements can include: point location (e.g., ice limits), distance between two points (e.g., ice horn height or width), arc length (the distance along the boundary between two points on that boundary), angle between two lines (e.g., horn angle) and ice area (area between ice surface and clean airfoil).

Ice Shape Control: The ice shape control features allow engineers to examine input geometry data, correct or modify any deficiencies in the geometry, and perform controlled systematic smoothing of the surface. Interactive ice shape control is used to prepare the surface for gridding as well as correct any deficiencies (e.g., tangles, gaps, too many or few points) in the input data. The types of functions that can be applied to surfaces are: smoothing (using control points), re-discretization (increase/decrease number of points and change their distribution), reshaping (by dragging control points) and rotate/translate airfoil components.

Artificial Ice Shape Construction: The artificial ice creation tool provides users with geometric shapes that can be attached to the surface of an airfoil, facilitating studies of the effects various ice shapes have on the aerodynamic performance. These ice shapes are to supplement natural and simulated ice for parametric study of icing effects. The user may add: right triangle (forward-facing or backward-facing), generic triangle, rectangle, quarter circle (forward-facing or backward-facing), semi-circle, trapezoid and parameters for location, replication, size, angle, and number of points may be set. A train of shapes can be added easily by specifying a number of shapes and the space between each one.