104
(d)
-------~--.~ .
(e)
(I)
_ /
- - --- ~ - -'----- -~
-~ -~~ --Figure 6: continued: d)-f) - optimisation time. Contour interval at optimisation time is
20 times larger than at initial time. From Buizza and Palmer (1995)
Orr (1907) process for transient growth (in asymptotically stable flows).
As discussed in Lindzen (1988), the Orr mechanism essentially operates in
shear flow from a critical layer. The vertical structure of the singular vec-
(d)
-------~--.~ .
(e)
(I)
_ /
- - --- ~ - -'----- -~
-~ -~~ --Figure 6: continued: d)-f) - optimisation time. Contour interval at optimisation time is
20 times larger than at initial time. From Buizza and Palmer (1995)
Orr (1907) process for transient growth (in asymptotically stable flows).
As discussed in Lindzen (1988), the Orr mechanism essentially operates in
shear flow from a critical layer. The vertical structure of the singular vec-