Turbulent heat transfer in rotating rectangular cooling channels with angled ribs and dimples /

An investigation into determining the effect of rotation on heat transfer in smooth, rib-roughened, and dimpled rectangular channels with aspect ratio of 4:1 is detailed in this thesis. Internal cooling channels are incorporated into gas turbine blades and vanes to counter the destructive nature of...

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Bibliographic Details
Main Author: Griffith, Todd Scott, 1976-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 2001.
Subjects:
Online Access:Link to OAKTrust copy

MARC

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035 |a (OCoLC)ocm50903709 
040 |a TXA  |c TXA  |d UtOrBLW 
049 |a TXAM  |a TXAR 
099 |a 2001  |a Thesis  |a G746 
100 1 |a Griffith, Todd Scott,  |d 1976- 
245 1 0 |a Turbulent heat transfer in rotating rectangular cooling channels with angled ribs and dimples /  |c by Todd Scott Griffith. 
264 1 |a [Place of publication not identified] :  |b [publisher not identified] ;  |c 2001. 
300 |a ix, 55 leaves :  |b illustrations ;  |c 28 cm. 
336 |a text  |b txt  |2 rdacontent 
337 |a computer  |b c  |2 rdamedia 
338 |a online resource  |b cr  |2 rdacarrier 
500 |a "Major subject: Mechanical Engineering". 
500 |a Vita. 
502 |b M.S.  |c Texas A&M University  |d 2001. 
504 |a Includes bibliographical references (leaves 52-54). 
520 |a An investigation into determining the effect of rotation on heat transfer in smooth, rib-roughened, and dimpled rectangular channels with aspect ratio of 4:1 is detailed in this thesis. Internal cooling channels are incorporated into gas turbine blades and vanes to counter the destructive nature of extremely high combustion temperatures. The rib and dimple turbulators, appearing on the leading and trailing surface, serve to trip the boundary layer and promote mixing of the hot and cold gas regions. The effect of surface geometry and channel orientations of β=90⁰ and 135⁰ with respect to the plane of rotation are investigated. Results show that the duct orientation significantly affects the leading and side surfaces, and has less affect on the trailing surfaces for the smooth, ribbed, and dimpled surfaces. Furthermore, spanwise heat transfer distributions exist across the leading and trailing surfaces and are accentuated by the use of angled ribs. The dimpled passage exhibited spanwise variations in heat transfer for only the twisted channel orientation. The smooth, ribbed, and dimpled case trailing surfaces and smooth case side surfaces exhibited a strong dependence on rotation number. 
530 |a Also available online. 
530 |a Issued also on microfiche from Lange Micrographics. 
650 4 |a Major mechanical engineering. 
856 4 1 |u https://hdl.handle.net/1969.1/ETD-TAMU-2001-THESIS-G746  |z Link to OAKTrust copy  |t 0 
948 |a cataloged  |b h  |c 2002/11/1  |d c  |e eneff  |f 8:45:23 am 
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952 f f |p noncirc  |a Texas A&M University  |b College Station  |c Cushing Memorial Library & Archives  |s cush tdrm  |d Cushing: Theses & Dissertations Microforms (Does not check out)  |t 0  |e 2001 Thesis G746  |h Other scheme  |i computer -- online resource 
952 f f |a Texas A&M University  |b College Station  |c Electronic Resources  |s www_evans  |d Available Online  |t 0  |e 2001 Thesis G746  |h Other scheme 
998 f f |a 2001 Thesis G746  |t 0  |l Available Online 
998 f f |a 2001 Thesis G746  |t 0  |l Cushing: Theses & Dissertations Microforms (Does not check out)