Fluid Flow

Fluid flow has a large impact on convection and needs to be accounted for when finding the convection heat transfer coefficient.

The largest two factors that effect convection are:

1. Where does the flow occur? (externally or internally)
2. What form does the flow take? (laminar or turbulent)
   This can be found out by calculating the reynolds-number and comparing it to the typical critical-reynolds-number.

Flow might be both laminar and turbulent, boundary layers are used to analyze these flows against surfaces. There are three types of boundary layers that are of interest to this class:

1. Velocity boundary layer measures fluid velocity.
2. Thermal boundary layer measures temperature.
3. Concentration boundary layer measures mass.

Fluid Flow makes heavy use of dimensionless parameters.

The Reynolds Analogy is used often to relate parameters in a flow.