arXiv subjects

V. P. Kiliyanpilakkil

Publications and source records attributed to V. P. Kiliyanpilakkil.

2 recordsLinked to original sources

arXiv2015

Extended self-similarity of atmospheric boundary layer wind fields in mesoscale regime: Is it real?

In this letter, we study the scaling properties of multi-year observed and atmospheric model-generated wind time series. We have found that the extended self-similarity holds for the observed series, and remarkably, the scaling exponents corresponding to the meoscale range closely match the well-accepted inertial-range turbulence values. However, the scaling results from the simulated time series are significantly different.

physics.flu-dyn↗

arXiv2015

Buoyancy Effects on the Scaling Characteristics of Atmospheric Boundary Layer Wind Fields in the Mesoscale Range

We have analyzed long-term wind speed time-series from five field sites up to a height of 300 m from the ground. Structure function-based scaling analysis has revealed that the scaling exponents in the mesoscale regime systematically depend on height. This anomalous behavior is likely caused by the buoyancy effects. In the framework of the extended self-similarity, the relative scaling exponents portray quasi-universal behavior.

physics.flu-dyn↗