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>Theoretical Investigation and Control by Measuring Tests on the Behavior of the Three-Dimensional Turbulent Boundary Layer on an Annular Wing at Various Incidences
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Theoretical Investigation and Control by Measuring Tests on the Behavior of the Three-Dimensional Turbulent Boundary Layer on an Annular Wing at Various Incidences
Especially the shear-stress distribution is very difficult to obtain even by very carefully executed experiments;in particular near the wall practically all measuring devices are affected by large (and often not yet compostable) errors. On the other hand, towards the outer edge of the boundary layer, the difficulty in defining this frontier makes it very ticklish to obtain reliable statements on all quantities and functions of interest.nIt is therefore necessary to try first to transform the unknown quantities and the equations in such a manner that the values to be measured are, if possible, both easily defined and obtainable by simple experiments. This will be done in the first chapter.
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