LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Leslie, L. M.; Smith, R. K. (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Subjects:
In an earlier paper, a momentum integral method was developed by one of the authors (Smith, 1968) to investigate the gross features of the surface friction layer of a steady, axisymmetric hurricane, which is specified by its radial pressure variation near the sea surface. Thus, by choosing suitable vertical profiles of inflow and swirling velocity components in the boundary layer, the technique provides estimates for the radial distribution of mean inflow, of boundary layer thickness and of mean upflow through the top of the layer. It therefore gives a measure of the constraint imposed by the inflow layer on the vortex which produces it. In the present work, the method is used to investigate the effects of turbulent structure on the boundary layer characteristics. The turbulence is represented by an eddy viscosity KM, and solutions corresponding to a variety of models for the variation of KM, together with an appropriate surface boundary condition, are compared. These models range from an eddy viscosity which is everywhere constant and with the condition of no-slip at the surface, to a KM which has both radial and vertical structure and which varies linearly with height in the first few tens of metres above the sea surface. In the latter case, one is able to parameterize the roughness of the sea surface. The solutions indicate that in actual hurricanes, an increase of KM towards the region of maximum winds produces a significant increase in the upflow compared with a similar layer in which KM has no radial variation. Moreover, the radial profile of boundary layer thickness differs markedly between the two cases. Solutions for three surface boundary conditions are compared and the volume inflow and upflow rates at a given radius are also found to increase with an increase in the constraint at the sea surface, that is, with an increase in surface stress. An error in one of the calculations of the first paper is also resolved.DOI: 10.1111/j.2153-3490.1970.tb00496.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Davis, P. J. 1965. Handbook of Mathematical Func- Rosenthal, S. L. 1962. A theoretical analysis of the tions (ed. Abramowitz & Stegun), Ch. 6. Dover, field of motion in the hurricane boundary layer New York. Nat. Hurr. Res. Proj. Rep., no. 56, 12pp.
    • Gray, W. M. 1966. On the scales of motion and Schwets, M. E. 1941. Determination of the coeffiinternal stress characteristics of a hurricane, J . cient of turbulent viscosity for atmospheric moAtmos. Sci. 23, 278-88. tions. Proc. (Dokl.) Acad. Sci. U.S.S.R.,30 pp.
    • Krauss, E. B. 1968. What do we not know about (in German). the sea-surface wind stress. Bull. Amer. Mat. SOC. Smith, R. K. 1968. The surface boundary layer of a 49, 247-53. hurricane. Tell- 20, 473-484.
    • Miller, B. I. 1968. The three dimensionalwind struc- Smith, R. K. 1969. A parametrization of the atture around a tropical cyclone. Nat. Huw. Res. mospheric boundary layer. Monash Univ. B.F . D . Proj. Rep., no. 15, pp. 41. Lab. Paper, no. 12.
    • Miller, B. I. 1965. A simple model of the hurricane Zilitinkevich, S.S., Laikhtman, D. L. & Monin, A. S inflow layer. Nat. Huw. Res. Prq'. Rep., no. 75, 1967. Dynamics of the atmospheric boundary 16 PP. layer. Izv., Atm. and Ocean. Phys., 3, 297-333.
    • Rohl, H. U. 1965. Physics of the Marine Atmosphere, Ch. 4. Academic Press, New York.
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article

Collected from