Chapter 15    Swirling flow

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Introduction

The stability of swirling flow

The forced vortex

Generating a forced vortex

Applications of the forced vortex

The free vortex

Condition for a free vortex

Uniform inward radial flow

The free spiral vortex

Application of the spiral vortex

Real swirling flow

The effects of the viscosity and density of real fluids on swirling flow

The real spiral vortex

Eddies

Endnote

Worked examples on vortices etc.