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Transformations for Variable-propert...

Trettel, Andrew James.

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Transformations for Variable-property Turbulent Boundary Layers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Transformations for Variable-property Turbulent Boundary Layers./
Author:	Trettel, Andrew James.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	162 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Contained By:	Dissertations Abstracts International81-04B.
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13899348
ISBN:	9781085667210

Transformations for Variable-property Turbulent Boundary Layers.
Trettel, Andrew James.

Transformations for Variable-property Turbulent Boundary Layers. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 162 p.

Source: Dissertations Abstracts International, Volume: 81-04, Section: B.

Thesis (Ph.D.)--University of California, Los Angeles, 2019.

This item must not be sold to any third party vendors.

The Trettel-Larsson (TL) transformation is extended to two dimensions using mass conservation and an interpretation of Morkovin's hypothesis. This extension reveals the previously unknown limitations of the TL transformation. The TL transformation only works in channel flows, in the inner layer of high Reynolds number boundary layers, and in boundary layers where the viscosity varies with the square root of the density. The error in the TL velocity transformation correlates with the second derivative of the transformed coordinate (the semi-local scaling). The second derivative of the transformed coordinate measures the amount that the transformed outer layer coordinate does not equal the untransformed outer layer coordinate. The extended TL theory now includes a streamwise coordinate transformation and production rate scalings. The limitations of the TL theory state that the analogy between compressible turbulent boundary layers and incompressible turbulent boundary layers is limited in theory but nonetheless useful in practice when possible.

ISBN: 9781085667210Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Boundary layer turbulence

Transformations for Variable-property Turbulent Boundary Layers.
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005 20200929060919.5
008 220629s2019 ||||||||||||||||| ||eng d
020 $a 9781085667210
035 $a (MiAaPQ)AAI13899348
035 $a AAI13899348
040 $a MiAaPQ $c MiAaPQ
100 1 $a Trettel, Andrew James. $3 3547787
245 1 0 $a Transformations for Variable-property Turbulent Boundary Layers.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 162 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 $a Advisor: Kim, John;Zhong, Xiaolin.
502 $a Thesis (Ph.D.)--University of California, Los Angeles, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a The Trettel-Larsson (TL) transformation is extended to two dimensions using mass conservation and an interpretation of Morkovin's hypothesis. This extension reveals the previously unknown limitations of the TL transformation. The TL transformation only works in channel flows, in the inner layer of high Reynolds number boundary layers, and in boundary layers where the viscosity varies with the square root of the density. The error in the TL velocity transformation correlates with the second derivative of the transformed coordinate (the semi-local scaling). The second derivative of the transformed coordinate measures the amount that the transformed outer layer coordinate does not equal the untransformed outer layer coordinate. The extended TL theory now includes a streamwise coordinate transformation and production rate scalings. The limitations of the TL theory state that the analogy between compressible turbulent boundary layers and incompressible turbulent boundary layers is limited in theory but nonetheless useful in practice when possible.
590 $a School code: 0031.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Aerospace engineering. $3 1002622
650 4 $a Applied mathematics. $3 2122814
650 4 $a High temperature physics. $3 3192580
650 4 $a Fluid mechanics. $3 528155
653 $a Boundary layer turbulence
653 $a Compressible turbulent boundary layers
653 $a Compressible turbulent channel flows
653 $a Velocity transformation
653 $a Wall turbulence
690 $a 0548
690 $a 0538
690 $a 0364
690 $a 0597
690 $a 0204
710 2 $a University of California, Los Angeles. $b Mechanical Engineering 0330. $3 2094148
773 0 $t Dissertations Abstracts International $g 81-04B.
790 $a 0031
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13899348