First
Announcement
Pisa, Italy
November 21 25, 2016
Models and Methods
for Advanced Reactor
Safety analysis (2nd Course)
http:/nnees.sk/mmars.html
in cooperation with
NINE (Italy), NNEES (Slovakia)
FPoliSolutions (USA), University of Illinois (USA)
and wi

VI. Grid Generations
Structured & Unstructured Grids
Structured Grids
Grid System :
1. Cartesian grid
BC is not given on the grid points
interpolation error
given
( , , )
interpolation
2. Boundary-fitted grid : Boundary or Body conforming grid
Trans

Coordinate System Control
Thompsons method :
2 = (,),
2 = (,)
M : No. of const. grid lines and/or around which clustering is enforced.
N : No. of grid points around which clustering is enforced.
1st-term : grid line clustering
2nd-term : grid point clus

B. Control-Volume Discretization
- FVM
cf. 3.5, Pletcher & Chapter 18, Hoffmann
Conservation principle Conservation property
FDM : PDE from conservation laws
FVM : Integral form from the conservation laws
or,
from PDE
Complex geometries : accuracy & c