156
RICHARD L. PESKIN
--- Oaordorff'r cakuktion
----- Loutor'r mweutomonlr
Comta - ~ O I I O I ' ~ moaauroaanh
0.5
0.0
0.2
0.4
0.6
0.8
0
- e r
FIG. 13. Calculated mean velocity profiles (Kau, 1972) compared with measurements and
other calculatione (Deardorff, 1970; Laufer. 1950; Comte.-Bellat. 1965).
this type it is important to have them well planned with respect to Eulerian
and Lagrangian information desired since any program changes requiring
reinitialization of the computation become impractical.
3.2. Lagranglcrn lnformutwn in Three-Dimensional Calculation
While Eulerian information from this type of calculation had been
examined previously by DeardorfT (1970) detailed information on the
Lagrangian problem was the main objective of this study. Some Lagrangian
information had been reported by Deardorff and Peskin (1970); however that
6 . 0
0
4 0 0
000
I200 1600 2000 2400 2800 3200
NUMBER OF TIME STEPS (At 1/300)
Fic;. 14. Fluctuation of rota1 resolvable energy as function of time (Kw, 1Y72).