Il Nuovo Cimento C

, Volume 17, Issue 3, pp 301–311 | Cite as

Extended closure model for Kaimal's isopleths

  • N. Krusche
  • J. Goedert
  • O. L. L. Moraes
Article
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Summary

A closure model for the spectral equation of turbulent kinetic energy, in the case of a steady-state and horizontally homogeneous flow in a stably stratified surface boundary layer is developed by use of systematic dimensional analysis. All resulting arbitrary functions that describe transfer mechanisms are subsequently Taylor-expanded in terms of their (small) arguments. This procedure leads to the closure of the system in terms of arbitrary constants which can subsequently be determined by fitting of observational data. The resulting solution is tested through comparison with experimental curves drawn from the Kansas experiment and with a formerly developed model.

PACS 92.60

Meteorology 

PACS 47.25

Turbulent flows, convection, and heat transfer 

PACS 47.25.Cg

Isotropic turbulence homogenous turbulence 

PACS 47.30

Flows with body forces (e.g., rotating flows, buoyant flows) 

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Copyright information

© Società Italiana di Fisica 1994

Authors and Affiliations

  • N. Krusche
    • 1
  • J. Goedert
    • 2
  • O. L. L. Moraes
    • 3
  1. 1.Departamento de Ciências Atmosféricas, Instituto Astronômico e GeofísicoUniversidade de São PauloSão PauloBrazil
  2. 2.Instituto de FísicaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  3. 3.Departmento de FísicaUniversidade Federal de Santa MariaSanta MariaBrazil

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