E-ε closure: Difference between revisions

From Glossary of Meteorology
(Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == ''E''-ε closure == </div> <div class="definition"><div class="short_definition">A [...")
 
m (Rewrite with Template:Term and clean up)
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
 
{{Term
 
|Display title=''E''-&#x003b5; closure
{{TermHeader}}
|Definitions={{Definition
{{TermSearch}}
|Num=1
 
|Meaning=
<div class="termentry">
A [[turbulence closure]] of one-and-a-half [[statistical]] order, where forecast equations are  retained for mean wind and [[temperature]], for [[wind]] and temperature [[variance]], and for [[molecular dissipation|molecular  dissipation]] of wind and temperature.<br/> Other unknowns such as fluxes or variables of higher statistical order are approximated or  parameterized as a function of the mean quantities, variances ''E'', and [[dissipation rates]] &#x003b5;.
  <div class="term">
}}
== ''E''-&#x003b5; closure ==
}}
  </div>
 
<div class="definition"><div class="short_definition">A [[turbulence closure]] of one-and-a-half [[statistical]] order, where forecast equations are  retained for mean wind and [[temperature]], for [[wind]] and temperature [[variance]], and for [[molecular  dissipation]] of wind and temperature.</div><br/> <div class="paragraph">Other unknowns such as fluxes or variables of higher statistical order are approximated or  parameterized as a function of the mean quantities, variances ''E'', and [[dissipation rates]] &#x003b5;.</div><br/> </div>
</div>
 
{{TermIndex}}
{{TermFooter}}
 
[[Category:Terms_E]]

Latest revision as of 06:14, 29 March 2024

A turbulence closure of one-and-a-half statistical order, where forecast equations are retained for mean wind and temperature, for wind and temperature variance, and for molecular dissipation of wind and temperature.
Other unknowns such as fluxes or variables of higher statistical order are approximated or parameterized as a function of the mean quantities, variances E, and dissipation rates ε.

Copyright 2025 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.