Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation

Luciano Castillo; William K. George; Xia Wang

Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation

Luciano Castillo
, William K. George
, Xia Wang

Department of Mechanical and Aerospace Engineering

Rensselaer Polytechnic Institute

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

1 Scopus citations

Abstract

It will be shown that the outer part of adverse pressure gradient turbulent boundary layers tends to remain in equilibrium similarity, even near (and sometimes past) separation. Thus such boundary layers are characterized by a single pressure parameter, A. and its value appears to be the same for all adverse pressure gradient flows; i.e., Λ ≈ 0.22. Using this pressure parameter and the integral boundary layer equation, it is possible to show that the shape factor at separation must have a single value. H _sep ≈ 2.5. Both the conditions for equilibrium similarity and the value of H _sep are shown to be in reasonable agreement with a variety of experimental estimates.

Original language	English
Title of host publication	Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2
Subtitle of host publication	Symposia
Editors	T.J. O Hern, T.J. O Hern
Pages	143-151
Number of pages	9
State	Published - 2003
Event	2001 ASME Fluids Engineering Division Summer Meeting - New Orleans, LA, United States Duration: May 29 2001 → Jun 1 2001

Publication series

Name	Proceedings of the ASME Fluids Engineering Division Summer Meeting
Volume	2

Conference

Conference	2001 ASME Fluids Engineering Division Summer Meeting
Country/Territory	United States
City	New Orleans, LA
Period	05/29/01 → 06/1/01

Cite this

Castillo, L., George, W. K., & Wang, X. (2003). Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation. In T. J. O Hern, & T. J. O Hern (Eds.), Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2: Symposia (pp. 143-151). (Proceedings of the ASME Fluids Engineering Division Summer Meeting; Vol. 2).

Castillo, Luciano ; George, William K. ; Wang, Xia. / Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation. Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2: Symposia. editor / T.J. O Hern ; T.J. O Hern. 2003. pp. 143-151 (Proceedings of the ASME Fluids Engineering Division Summer Meeting).

@inproceedings{65f470c37777472db190e29e6f22c7fc,

title = "Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation",

abstract = "It will be shown that the outer part of adverse pressure gradient turbulent boundary layers tends to remain in equilibrium similarity, even near (and sometimes past) separation. Thus such boundary layers are characterized by a single pressure parameter, A. and its value appears to be the same for all adverse pressure gradient flows; i.e., Λ ≈ 0.22. Using this pressure parameter and the integral boundary layer equation, it is possible to show that the shape factor at separation must have a single value. H sep ≈ 2.5. Both the conditions for equilibrium similarity and the value of H sep are shown to be in reasonable agreement with a variety of experimental estimates.",

author = "Luciano Castillo and George, \{William K.\} and Xia Wang",

year = "2003",

language = "English",

isbn = "0791835324",

series = "Proceedings of the ASME Fluids Engineering Division Summer Meeting",

pages = "143--151",

editor = "\{O Hern\}, T.J. and \{O Hern\}, T.J.",

booktitle = "Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2",

note = "2001 ASME Fluids Engineering Division Summer Meeting ; Conference date: 29-05-2001 Through 01-06-2001",

}

Castillo, L, George, WK & Wang, X 2003, Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation. in TJ O Hern & TJ O Hern (eds), Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2: Symposia. Proceedings of the ASME Fluids Engineering Division Summer Meeting, vol. 2, pp. 143-151, 2001 ASME Fluids Engineering Division Summer Meeting, New Orleans, LA, United States, 05/29/01.

Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation. / Castillo, Luciano; George, William K.; Wang, Xia.
Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2: Symposia. ed. / T.J. O Hern; T.J. O Hern. 2003. p. 143-151 (Proceedings of the ASME Fluids Engineering Division Summer Meeting; Vol. 2).

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

TY - GEN

T1 - Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation

AU - Castillo, Luciano

AU - George, William K.

AU - Wang, Xia

PY - 2003

Y1 - 2003

N2 - It will be shown that the outer part of adverse pressure gradient turbulent boundary layers tends to remain in equilibrium similarity, even near (and sometimes past) separation. Thus such boundary layers are characterized by a single pressure parameter, A. and its value appears to be the same for all adverse pressure gradient flows; i.e., Λ ≈ 0.22. Using this pressure parameter and the integral boundary layer equation, it is possible to show that the shape factor at separation must have a single value. H sep ≈ 2.5. Both the conditions for equilibrium similarity and the value of H sep are shown to be in reasonable agreement with a variety of experimental estimates.

AB - It will be shown that the outer part of adverse pressure gradient turbulent boundary layers tends to remain in equilibrium similarity, even near (and sometimes past) separation. Thus such boundary layers are characterized by a single pressure parameter, A. and its value appears to be the same for all adverse pressure gradient flows; i.e., Λ ≈ 0.22. Using this pressure parameter and the integral boundary layer equation, it is possible to show that the shape factor at separation must have a single value. H sep ≈ 2.5. Both the conditions for equilibrium similarity and the value of H sep are shown to be in reasonable agreement with a variety of experimental estimates.

UR - https://www.scopus.com/pages/publications/0346888777

M3 - Conference contribution

AN - SCOPUS:0346888777

SN - 0791835324

SN - 9780791835326

T3 - Proceedings of the ASME Fluids Engineering Division Summer Meeting

SP - 143

EP - 151

BT - Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 2

A2 - O Hern, T.J.

T2 - 2001 ASME Fluids Engineering Division Summer Meeting

Y2 - 29 May 2001 through 1 June 2001

ER -

Characterizing Turbulent Boundary Layers Subject to Strong Adverse Pressure Gradient with Eventual Separation

Abstract

Publication series

Conference

Other files and links

Fingerprint

Cite this