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Introduction.

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Presentation on theme: "Introduction."— Presentation transcript:

1 Introduction

2 Conservation of momentum
inertia pressure/gravity viscous

3 Flows and force balances
1. Slow flow in a slot 2. Oscillating slow flow 3. Small-amplitude waves 4. Fast flow away from an object 5. Fast flow near an object a. inertia ~ pressure/gravity b. viscous ~ inertia ~ pressure c. viscous ~ inertia d. viscous ~ pressure

4 Viscous flow in a slot or pipe
Flow driven by a pressure gradient Flow driven by a moving wall

5 Viscous slot flow: extensions
Glacier movement Groundwater Flow in the mantle

6 Viscous slot flow: extensions
Particle settling Swimming of organisms Sediment transport

7 Turbulent flow in a slot or pipe
Transition to turbulence “Law of the wall”

8 Turbulent pipe flow: extensions
Open channel flow Glacier movement Municipal hydraulics Flow in vegetated channels

9 Unsteady viscous flow U U Impulsively started plate Oscillating plate

10 Unsteady viscous flow: extensions
River mixing

11 Waves Surface waves of small amplitude

12 Waves: extensions Wave spectra Internal waves Solitary waves

13 Boundary layers

14 Boundary layers: extensions
Gravity currents and salt wedges Biofilms Jets & plumes Diffusive BL in a lake


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