lid velocity = 100., prandtl # = 1., grashof # = 40000.
  0 SNES Function norm 1065.74
  1 SNES Function norm 93.4476
  2 SNES Function norm 32.0022
  3 SNES Function norm 7.71541
  4 SNES Function norm 1.58058
  5 SNES Function norm 0.292867
  6 SNES Function norm 0.0837882
  7 SNES Function norm 0.0353108
  8 SNES Function norm 0.019356
  9 SNES Function norm 0.0101671
 10 SNES Function norm 0.00532382
 11 SNES Function norm 0.00276371
 12 SNES Function norm 0.00143197
 13 SNES Function norm 0.000740617
 14 SNES Function norm 0.000382882
 15 SNES Function norm 0.000197875
 16 SNES Function norm 0.000102254
 17 SNES Function norm 5.28375e-05
 18 SNES Function norm 2.73024e-05
 19 SNES Function norm 1.41077e-05
 20 SNES Function norm 7.28972e-06
Number of SNES iterations = 20