FANNO FLOW FLUID MECHANICS AND DYNAMICS BASIC AND TUTORIALS


The most important model in compressible flow was suggested by Gino Fanno in his Master’s thesis (1904). The model bears his name.

Yet, according to Dr. Rudolf Mumenthaler from UTH University (the place where Fanno Study), no copy of the thesis can be found in the original University and perhaps only in the personal custody of the Fanno family. Fanno attributes the main pressure reduction to friction.

Thus, flow that is dominantly adiabatic could be simplified and analyzed. The friction factor is the main component in the analysis as Darcy f42 had already proposed in 1845. The arrival of the Moody diagram, which built on Hunter Rouse’s (194x) work made Darcy– Weisbach’s equation universally useful.

Without the existence of the friction factor data, the Fanno model wasn’t able to produce a prediction useful for the industry.

Additionally an understating of the supersonic branch of the flow was unknown (The idea of shock in tube was not raised at that time.).

Shapiro organized all the material in a coherent way and made this model useful.

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