K-ε closure: Difference between revisions

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|Display title=''k''&ndash;&#x003b5; closure
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|Meaning=A type of one-and-a-half-order [[turbulence closure]] that retains forecast equations for  mean (first-order [[statistics]]) variables such as [[potential temperature]] and [[wind]] components, and  also retains equations for [[variances]] ([[turbulence kinetic energy]] and [[temperature]] variance, symbolized  by ''k'') and for [[molecular dissipation]] or destruction of variances (symbolized by &#x003b5;).
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|Explanation=<br/>''Compare'' [[first-order closure]], [[K-theory]], [[second-order closure]], [[nonlocal closure]], [[Reynolds averaging|Reynolds  averaging]], [[closure assumptions]].
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== ''k''&ndash;&#x003b5; closure ==
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<div class="definition"><div class="short_definition">A type of one-and-a-half-order [[turbulence closure]] that retains forecast equations for  mean (first-order [[statistics]]) variables such as [[potential temperature]] and [[wind]] components, and  also retains equations for [[variances]] ([[turbulence kinetic energy]] and [[temperature]] variance, symbolized  by ''k'') and for [[molecular dissipation]] or destruction of variances (symbolized by &#x003b5;).</div><br/> <div class="paragraph"><br/>''Compare'' [[first-order closure]], [[K-theory]], [[second-order closure]], [[nonlocal closure]], [[Reynolds  averaging]], [[closure assumptions]].</div><br/> </div>
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[[Category:Terms_K]]

Latest revision as of 11:59, 26 March 2024

A type of one-and-a-half-order turbulence closure that retains forecast equations for mean (first-order statistics) variables such as potential temperature and wind components, and also retains equations for variances (turbulence kinetic energy and temperature variance, symbolized by k) and for molecular dissipation or destruction of variances (symbolized by ε).


Compare first-order closure, K-theory, second-order closure, nonlocal closure, Reynolds averaging, closure assumptions.

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