Abstract
A rigid open-ended pipe is submerged in the ocean below the troughs of the surface waves and held fixed in the vertical position, the lower end being at or below the depth of wave influence. When surface gravity waves propagate past the pipe, water flows up as long as waves are present. The steady upward vertical velocity in the center of the pipe is calculated to be proportional to the square of both the average wave steepness and the pipe’s radius. An application is to bring nutrient rich waters up into the sunlit surface layers of the open oceans.
References
Behrman, D. (1992): John Isaacs and His Oceans. ICSU Press, American Geophysical Union, Washington, D.C., p. 172–174.
Caspar, M. (1993): Kepler. Dover, New York, 441 pp., p. 153.
Faber, T. E. (1995): Fluid Dynamics for Physicists. Cambridge Univ. Press, U.K., 440 pp., p. 352.
Huppert, H. E. and J. S. Turner (1981): Double-diffusive convection. J. Fluid Mech., 106, 299–329.
Kenyon, K. E. (1991): Cyclostrophic balance in surface gravity waves. J. Oceanogr. Soc. Japan, 47, 45–48.
Lamb, H. (1932): Hydrodynamics. Dover, New York, 738 pp.
Maruyama, S., K. Tsubaki, K. Taira and S. Sakai (2004): Artificial upwelling of seep seawater using the perpetual salt fountain for cultivation of ocean desert. J. Oceanogr., 60, 563–568.
Schlichting, H. (1968): Boundary-layer Theory. McGraw-Hill, New York, 747 pp., p. 78–80.
Stern, M. E. (1960): The “salt fountain” and thermohaline convection. Tellus, 12, 172–175.
Stommel, H., A. B. Arons and D. Blanchard (1956): An oceanographic curiosity: the perpetual salt fountain. Deep-Sea Res., 3, 152–153.
Veronis, G. (1981): Evolution of Physical Oceanography. MIT Press, Cambridge, MA, p. xx.
Zhang, X., S. Maruyama, K. Tsubaki, S. Sakai and M. Behnia (2006): Mechansim for enhanced diffusivity in the deepsea perpetual salt fountain. J. Oceanogr., 62, 133–142.