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

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English (US)
Title of host publication	IUTAM Symp on The Physics of Wall-Bounded Turbulent Flows on Rough Walls
Subtitle of host publication	Proc of the IUTAM Symp on The Physics ofWall-Bounded Turbulent Flows on Rough Walls, held Cambridge, UK, 7-9, July, 2009
Publisher	Springer Verlag
Pages	33-42
Number of pages	10
ISBN (Print)	9789048196302
DOIs	https://doi.org/10.1007/978-90-481-9631-9_5
State	Published - 2010

Publication series

Name	IUTAM Bookseries
Volume	22
ISSN (Print)	1875-3507

All Science Journal Classification (ASJC) codes

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

Access to Document

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. In 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). Springer Verlag. https://doi.org/10.1007/978-90-481-9631-9_5

Smits, Alexander ; Bailey, Sean C.C. ; Pepe, Rick L. ; Schultz, Michael P. / Turbulence in pipe flows with small relative roughness. 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. Springer Verlag, 2010. pp. 33-42 (IUTAM Bookseries).

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abstract = "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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Smits, A, Bailey, SCC, Pepe, RL & Schultz, MP 2010, Turbulence in pipe flows with small relative roughness. in 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, Springer Verlag, 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.; Schultz, Michael P.

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. Springer Verlag, 2010. p. 33-42 (IUTAM Bookseries; Vol. 22).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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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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Smits A, Bailey SCC, Pepe RL, Schultz MP. Turbulence in pipe flows with small relative roughness. In 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. Springer Verlag. 2010. p. 33-42. (IUTAM Bookseries). https://doi.org/10.1007/978-90-481-9631-9_5

Turbulence in pipe flows with small relative roughness

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