4. Some specific methodologies
As we have seen in the preceding paragraphs, disturbances are essentially slots in either temperature (i.e. sensible heat) or flow (an extensive variable rather than an intensive one).
However, in many of the practical problems we encounter, the demands can be quite arbitrary. In such cases, specific methods are useful.
4.1 Fourier analysis
Remember that any load can always be reduced to a Fourier series. The basic load is then a sinusoidal disturbance. E.M. Sparrow and F.N. De Farias
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Some specific methodologies
A few examples
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