In this study, turbulent flow around a Guassian hill in a water tunnel is studied.
Using a hot film anemometer, velocity and turbulent qualities (such as turbulence
flux and intensity) is measured at different parts of the model.
To understand these measurements, mean velocity deviation and perturbation
velocity fluctuation contours, also turbulence flux and intensity profiles are presented
and the results are consistent with those obtained by other investigators. Also the
cavities in the downwind of the hill cause intense turbulence its scale being in order
of cavities.
The increase of velocity around the hill especially above the crest is significant.
These studies in the use of optimum wind energy in hilly regions are useful.