Turbulence in pipe flows with small relative roughness

Alexander Smits; Sean C.C. Bailey; Rick L. Pepe; Michael P. Schultz

doi:10.1007/978-90-481-9631-9_5

Turbulence in pipe flows with small relative roughness

Alexander Smits
, Sean C.C. Bailey
, Rick L. Pepe
, Michael P. Schultz

Producción científica: Conference contribution › revisión exhaustiva

Resumen

The Princeton University Superpipe, capable of generating Reynolds numbers from 31 × 10³ to 35 × 10⁶, has been used to study the effects of surface roughness on turbulence in fully developed turbulent pipe flow. Mean velocity and pressure gradient results, streamwise Reynolds stresses, and two point correlations have all been performed on flow through a commercial steel pipe, with k_rms/D = 1/26,000 = 38.5 × 10^-6, where k_rms is the rms roughness height and D is the pipe diameter. The Reynolds number of these studies ranged from 76 × 10³ to 20 × 10⁶. It was found that through the transitionally rough flow regime, the friction factor behavior did not follow that predicted by the Colebrook correlation. In addition, when the flow moved into the transitional and fully rough flow regimes, the streamwise Reynolds normal stress in the outer layer was found to saturate at a maximum value and did not increase in the same manner as observed for smooth pipes.

Idioma original	English
Título de la publicación alojada	IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls
Subtítulo de la publicación alojada	Proc of the IUTAM Symp on The Physics ofWall-Bounded Turbulent Flows on Rough Walls, held Cambridge, UK, 7-9, July, 2009
Páginas	33-42
Número de páginas	10
DOI	https://doi.org/10.1007/978-90-481-9631-9_5
Estado	Published - 2010

Serie de la publicación

Nombre	IUTAM Bookseries
Volumen	22
ISSN (versión impresa)	1875-3507

Nota bibliográfica

Funding Information:
The support of ONR under Grant N00014-09-1-0263 (Ronald Joslin) and NSF under Grant CTS-0625268 (William Schultz) is gratefully acknowledged.

Financiación

The support of ONR under Grant N00014-09-1-0263 (Ronald Joslin) and NSF under Grant CTS-0625268 (William Schultz) is gratefully acknowledged.

Financiadores	Número del financiador
National Science Foundation (NSF)
Office of Naval Research
National Science Foundation (NSF)	CTS-0625268
Office of Naval Research	N00014-09-1-0263

ASJC Scopus subject areas

Civil and Structural Engineering
Automotive Engineering
Aerospace Engineering
Acoustics and Ultrasonics
Mechanical Engineering

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10.1007/978-90-481-9631-9_5

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Smits, A., Bailey, S. C. C., Pepe, R. L., & Schultz, M. P. (2010). Turbulence in pipe flows with small relative roughness. En IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls: Proc of the IUTAM Symp on The Physics ofWall-Bounded Turbulent Flows on Rough Walls, held Cambridge, UK, 7-9, July, 2009 (pp. 33-42). (IUTAM Bookseries; Vol. 22). https://doi.org/10.1007/978-90-481-9631-9_5

@inproceedings{1c3038aa36324213ac326d33c8249aa1,

title = "Turbulence in pipe flows with small relative roughness",

abstract = "The Princeton University Superpipe, capable of generating Reynolds numbers from 31 {\texttimes} 103 to 35 {\texttimes} 106, has been used to study the effects of surface roughness on turbulence in fully developed turbulent pipe flow. Mean velocity and pressure gradient results, streamwise Reynolds stresses, and two point correlations have all been performed on flow through a commercial steel pipe, with krms/D = 1/26,000 = 38.5 {\texttimes} 10-6, where krms is the rms roughness height and D is the pipe diameter. The Reynolds number of these studies ranged from 76 {\texttimes} 103 to 20 {\texttimes} 106. It was found that through the transitionally rough flow regime, the friction factor behavior did not follow that predicted by the Colebrook correlation. In addition, when the flow moved into the transitional and fully rough flow regimes, the streamwise Reynolds normal stress in the outer layer was found to saturate at a maximum value and did not increase in the same manner as observed for smooth pipes.",

author = "Alexander Smits and Bailey, \{Sean C.C.\} and Pepe, \{Rick L.\} and Schultz, \{Michael P.\}",

note = "Funding Information: The support of ONR under Grant N00014-09-1-0263 (Ronald Joslin) and NSF under Grant CTS-0625268 (William Schultz) is gratefully acknowledged.",

year = "2010",

doi = "10.1007/978-90-481-9631-9\_5",

language = "English",

isbn = "9789048196302",

series = "IUTAM Bookseries",

pages = "33--42",

booktitle = "IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls",

}

Smits, A, Bailey, SCC, Pepe, RL & Schultz, MP 2010, Turbulence in pipe flows with small relative roughness. En IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls: Proc of the IUTAM Symp on The Physics ofWall-Bounded Turbulent Flows on Rough Walls, held Cambridge, UK, 7-9, July, 2009. IUTAM Bookseries, vol. 22, pp. 33-42. https://doi.org/10.1007/978-90-481-9631-9_5

Turbulence in pipe flows with small relative roughness. / Smits, Alexander; Bailey, Sean C.C.; Pepe, Rick L. et al.
IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls: Proc of the IUTAM Symp on The Physics ofWall-Bounded Turbulent Flows on Rough Walls, held Cambridge, UK, 7-9, July, 2009. 2010. p. 33-42 (IUTAM Bookseries; Vol. 22).

Producción científica: Conference contribution › revisión exhaustiva

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T1 - Turbulence in pipe flows with small relative roughness

AU - Smits, Alexander

AU - Bailey, Sean C.C.

AU - Pepe, Rick L.

AU - Schultz, Michael P.

N1 - Funding Information: The support of ONR under Grant N00014-09-1-0263 (Ronald Joslin) and NSF under Grant CTS-0625268 (William Schultz) is gratefully acknowledged.

PY - 2010

Y1 - 2010

N2 - The Princeton University Superpipe, capable of generating Reynolds numbers from 31 × 103 to 35 × 106, has been used to study the effects of surface roughness on turbulence in fully developed turbulent pipe flow. Mean velocity and pressure gradient results, streamwise Reynolds stresses, and two point correlations have all been performed on flow through a commercial steel pipe, with krms/D = 1/26,000 = 38.5 × 10-6, where krms is the rms roughness height and D is the pipe diameter. The Reynolds number of these studies ranged from 76 × 103 to 20 × 106. It was found that through the transitionally rough flow regime, the friction factor behavior did not follow that predicted by the Colebrook correlation. In addition, when the flow moved into the transitional and fully rough flow regimes, the streamwise Reynolds normal stress in the outer layer was found to saturate at a maximum value and did not increase in the same manner as observed for smooth pipes.

AB - The Princeton University Superpipe, capable of generating Reynolds numbers from 31 × 103 to 35 × 106, has been used to study the effects of surface roughness on turbulence in fully developed turbulent pipe flow. Mean velocity and pressure gradient results, streamwise Reynolds stresses, and two point correlations have all been performed on flow through a commercial steel pipe, with krms/D = 1/26,000 = 38.5 × 10-6, where krms is the rms roughness height and D is the pipe diameter. The Reynolds number of these studies ranged from 76 × 103 to 20 × 106. It was found that through the transitionally rough flow regime, the friction factor behavior did not follow that predicted by the Colebrook correlation. In addition, when the flow moved into the transitional and fully rough flow regimes, the streamwise Reynolds normal stress in the outer layer was found to saturate at a maximum value and did not increase in the same manner as observed for smooth pipes.

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Turbulence in pipe flows with small relative roughness

Resumen

Serie de la publicación

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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