48
3 Basics of Nonhydrostatic Modelling
Fig. 3.21 Exercise 5. Density distribution after of 2.8 min of simulation
Fig. 3.22 Exercise 5. Ensemble of vertical profiles of vertical velocity after 6 min of iteration for
the zones (a) x = 50–100 m, (b) x = 350–400 m, and (c) x = 400–450 m
3.9.4 Additional Exercise for the Reader
Place the initial density anomaly in the shallower region and explore the resultant
wave patterns.
3.10 Mechanical Turbulence
3.10.1 Kelvin-Helmholtz Instability
Shear flows are flows of a speed that varies in a direction perpendicular to the current. This can be either in the horizontal plane where the resultant flows are referred
to as horizontal shear flows and/or in the vertical plane characterising vertical shear
flows. The latter are considered in the following. Vertical shear flows tend to create
turbulence inducing mixing in the water column. In a stratified fluid, work has to
3 Basics of Nonhydrostatic Modelling
Fig. 3.21 Exercise 5. Density distribution after of 2.8 min of simulation
Fig. 3.22 Exercise 5. Ensemble of vertical profiles of vertical velocity after 6 min of iteration for
the zones (a) x = 50–100 m, (b) x = 350–400 m, and (c) x = 400–450 m
3.9.4 Additional Exercise for the Reader
Place the initial density anomaly in the shallower region and explore the resultant
wave patterns.
3.10 Mechanical Turbulence
3.10.1 Kelvin-Helmholtz Instability
Shear flows are flows of a speed that varies in a direction perpendicular to the current. This can be either in the horizontal plane where the resultant flows are referred
to as horizontal shear flows and/or in the vertical plane characterising vertical shear
flows. The latter are considered in the following. Vertical shear flows tend to create
turbulence inducing mixing in the water column. In a stratified fluid, work has to