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Measures of complexity in wind direction

Chanda A., Das J.

Journal of Technical Physics

2003

Vol. 44, no 2

207-214

In the present paper an attempt has been made to utilise two different forms of complexity measures in directional change of wind. Two types of complexity measures are average mutual information and multifractal dimensions. Four sets of data have been studied. For each set, all the three measures have been calculated. From the results, a comparative study of the properties of the two measures of complexity vis-a-vis understanding the nature of complexity has been done.

Self-similarity in the decay of homogeneous and isotropic turbulence

Chanda A., Das P., De A., Das J.

Journal of Technical Physics

2000

Vol. 41, no 1

43-47

Decay of turbulent energy in isotropic and homogeneous conditions has been discussed from the point of view of geometrical and statistical self similarity. Assuming the presence of self-similar eddies in the inertial subrange, a model of the inertial transfer of turbulent energy in the sense of fractal has been built. A method to extend the model to multifractal formalism has been also suggested.