Amending the W* Velocity Scale for Surface Layer, Entrainment Zone, and Baroclinic Shear in Mixed Forced/Free Turbulent Convection

Abstract

We amend the free convective mixed layer velocity scale, w* to w*s to include mechanical turbulence from forced convection. W*s has discrete surface layer, entrainment zone, and baroclinic components and requires the length scales: zo, L, Delta h, zi, and zb, a newly defined baroclinic length. To close the system we offer simple models for delta h, the entrainment zone depth. The delta h models show realistic diurnal hysteresis, using a critical bulk Richardson number which exceeds unity.

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Document Details

Document Type
Technical Report
Publication Date
Mar 30, 1992
Accession Number
ADA250389

Entities

People

  • R. F. Kamada

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Atmospheric Motion
  • Boundary Layer
  • Buoyancy
  • Convection
  • Equations
  • Inversion
  • Layers
  • Naval Operations
  • Physics
  • Production Rate
  • Richardson Number
  • Space Systems
  • Steady State
  • Temperature Gradients
  • Turbulence
  • Turbulent Mixing

Readers

  • Analytical Mechanics
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers