|
|
|
|
 |
Daily Speculations The Web Site of Victor Niederhoffer & Laurel Kenner Dedicated to the scientific method, free markets, deflating ballyhoo, creating value, and laughter; a forum for us to use our meager abilities to make the world of specinvestments a better place. |
Write to us at:
(address is not clickable)
The Sun-Baked Speculator
Tom Ryan
3/18/2005
Strouhal Numbers:
My quest just yet for applying the strouhal number to intraday markets
Heavy flags undergo spontaneous oscillations in flowing water
by M. Shelley, N. Vandenberghe, and J. Zhang
in Physical Review Letters 94, 094302 (2005).
Abstract: "By immersing a compliant yet self-supporting sheet into flowing water, we study a heavy, streamlined, and elastic body interacting with a fluid. We find that above a critical flow velocity a sheet aligned with the flow begins to flap with a Strouhal frequency consistent with animal locomotion. This transition is subcritical. Our results agree qualitatively with a simple fluid dynamical model that predicts linear instability at a critical flow speed. Both experiment and theory emphasize the importance of body inertia in overcoming the stabilizing effects of finite rigidity and fluid drag."
The question is the following: is there a flow velocity in the market price at which the market begins flapping during the day with minor rallies and dips or...... inversely at a given velocity what can we expect are the magnitudes of those bumps for trading in and out. Having failed to develop a relation using 3,5,7 day rate of change, now I am thinking proximity to 20 day hi's/lo's may be a better way to go.