We present a new semi-empirical relation for the mass loss of cool stellar winds, which so far has frequently been described by “Reimers’ law”. Originally, this relation was based solely on dimensional scaling arguments without any physical interpretation. In our approach, the wind is assumed to result from the spill-over of the extended chromosphere, possibly associated with the action of wave...

Professor Mark Bourassa Florida State University 200 R.M. Johnson Building, 2035 E. Paul Dirac Drive, PO Box 3062840 Tallahassee, FL 323062840 USA [email protected] Barry Vanhoff (Oregon State University) David E. Weissman (Hofstra University) Contributed Talk Calibration/Validation and definitions Scatterometers have long been considered to respond to surface turbulent stress. They have b...

Strong cross-winds may overturn trains, so an understanding of the fluid mechanics is important. To facilitate the proper estimation of the probability of a train overturning, accurate data for the aerodynamic rolling moment about the lee rail is essential. (Of course, many other parameters are required.) The flow of a turbulent cross-wind over a train moving across an embankment is complex, an...

Using top-end high fidelity computer simulations we demonstrate the existence of a mechanism present in turbulent flows generated by multiscale or fractal objects and which has its origin in the multiscale or fractal space-scale structure of such turbulent flow generators. As a result of this space-scale unfolding mechanism, fractal grids can enhance scalar transfer and turbulent diffusion by o...

It is imperative for a firm to possess capability to pursue dual conflict goals simultaneously, i.e., ambidexterity capability, in turbulence market environment. As a result of synergy between IT and business process, a firm is able to build its ambidexterity capability, namely, alignment between them to gain organizational alignment capability which offers the firm short-term performance on th...

Many methods have been proposed for the detection of exoplanets. The minimum detectable planetary size and mass, and the maximum distance from us at which exoplanets are observable, are determined by both technological and environmental constraints. The unique atmospheric conditions found at Dome C offer significant advantages. Using what is now known about the turbulence profile of the atmosph...

Variational Estimation of Wave-affected Parameters 1 in a Two-equation Turbulence Model 2 3 Xuefeng Zhang Guijun Han Dong Li Xinrong Wu Wei Li Peter C. Chu 4 5 Key Laboratory of Marine Environmental Information Technology, 6 National Marine Data and Information Service, State Oceanic 7 Administration, Tianjin, PRC 8 Naval Ocean Analysis and Prediction Laboratory, Department of 9 Oceanography, N...

The long term goal of this work is to develop a fundamental understanding and predictive capability of the underlying physics of the interaction of nonlinear internal waves (NLIWs) with the continental shelf seafloor over a broad range of environmental conditions. We are particularly interested in how such interactions impact underwater optics and acoustics and shelf energetics and ecology by s...