PhD Thesis - staffweb - University of Greenwich

APPENDIX 5 : DATA DICTIONARY FOR GEOMETRY CLASSES IN SMARTFIRECELL CLASSCell objects are face bounded control volumes with their own collection of internal properties.Many of the properties used in the computation are cell centred however a few exist as cell -faceproperties where there will be a value (or item) for each of the faces in a cell. When using cellclass access functions the local face indices are used rather than the global face numberingscheme. This means that internally the cell knows about faces 1 to n (where n is the maximumnumber of faces bounding this cell). The actual global indexed face numbers bounding this cellcould be literally anything. The interrogation functions hide the index re -mapping to simplifyaccess from the cell to the bounding faces. All of the separate cell -face arrays have the sameindexing so that using cell -face index #1 inside a cell will refer to all of the cell -face properties ofonly one of the bounding faces. The cells are stored in an array of pointers to cells.Cell_Class ** cell;cell = new Cell_Class* [TOTAL_NUMBER_OF_CELLS+1];for ( i=1; i access(NEWEST,PRESSURE) = 2.5e-5;// Getting the 2 nd internal face area of cell number 15float area = cell[15]->face_area( 2 );// Finding the maximum Y coordinate of cell 53float y_max = cell[53]->find_max_coord(Y);class Cell_Class {//==> The following private data members cannot be accessed directly. You must use the dataaccess functions provided later. Some of these data access functions are declared asreturning a reference type (&) in which case they can be used on either side of anassignment satement. See the above examples for details of using the data access function.This is necessary to hide the complexities of least memory array storage.private://==> Array of data values for storing cell properties.Float_Type * data;Appendix 11.5 Page 145-11 11