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What about non-CFD methods?
To estimate the effect of airflow on the system,
non-CFD methods require a heat transfer coefficient,
which is a complex non-linear function of airflow
velocity and temperature, the surface geometry and the
material properties of air. It is known only for the
simplest geometries and airflow, such as along a flat
plate, and hence it has to be guessed for typical
electronic systems. Taking into account that in forced
convection problems airflow is the dominant heat transfer
mode accounting for up to 90% of heat transfer, guessing
the heat transfer coefficient is equivalent to guessing
the entire solution. Coolit, using CFD to compute the
airflow, eliminates the guesswork and provides accurate
results.
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