Laminar-turbulent transition in a laminar separation bubble: Influence of disturbance amplitude on bubble size and bursting

被引：0

作者：

Marxen, Olaf ^{[1
]}

机构：

[1] Stanford Univ, Ctr Turbulence Res, Stanford, CA 94305 USA

来源：

HIGH PERFORMANCE COMPUTING IN SCIENCE AND ENGINEERING '07 | 2008年

关键词：

D O I：

10.1007/978-3-540-74739-0_18

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Direct numerical simulations of a short laminar separation bubble and its bursting are carried out. The bubble is developing on a flat plate due to an externally imposed pressure gradient. Laminar-turbulent transition is triggered by small disturbance input with fixed frequency to keep the bubble short. The short bubble reaches a statistically steady state, while switching off disturbance input yields a growing separation bubble. This phenomenon is denoted as bubble-bursting process. Disturbance input does not only prevent bursting, but can also serve to control the short bubble. Bubble size decreases with increased disturbance amplitude. Performance data on a NEC SX-8 super computer are compared for two different resolutions.

引用

页码：261 / +

页数：4

共 50 条

[31] Influence of the transition of a laminar separation bubble on the downstream evolution of strong adverse pressure gradient turbulent boundary layers [J].

Simens, M. P. ;

Gungor, A. G. .

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, 2018, 67 :70-78

[32] On laminar-turbulent transition in nanofluid flows [J].

V. Ya. Rudyak ;

A. V. Minakov ;

D. V. Guzey ;

V. A. Zhigarev ;

M. I. Pryazhnikov .

Thermophysics and Aeromechanics, 2016, 23 :773-776

[33] ON THE LAMINAR-TURBULENT TRANSITION OF VELOCITY PULSES [J].

TSANGARIS, S ;

LEITER, E .

BIOMEDIZINISCHE TECHNIK, 1982, 27 (10) :228-234

[34] The application of laminar kinetic energy to laminar-turbulent transition prediction [J].

Turner, C. ;

Prosser, R. .

TURBULENCE, HEAT AND MASS TRANSFER 6, 2009, :209-212

[35] On laminar-turbulent transition in nanofluid flows [J].

Rudyak, V. Ya. ;

Minakov, A. V. ;

Guzey, D. V. ;

Zhigarev, V. A. ;

Pryazhnikov, M. I. .

THERMOPHYSICS AND AEROMECHANICS, 2016, 23 (05) :773-776

[36] The laminar-turbulent transition in a fibre laser [J].

Turitsyna, E. G. ;

Smirnov, S. V. ;

Sugavanam, S. ;

Tarasov, N. ;

Shu, X. ;

Babin, S. A. ;

Podivilov, E. V. ;

Churkin, D. V. ;

Falkovich, G. ;

Turitsyn, S. K. .

NATURE PHOTONICS, 2013, 7 (10) :783-786

[37] Laminar-turbulent transition in a bayonet tube [J].

Minhas, H ;

Lock, GSH .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1996, 17 (02) :102-107

[38] Apparatus for laminar-turbulent transition in gases [J].

Hinkle, LD ;

Muriel, A .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2005, 23 (04) :676-680

[39] Laminar-turbulent transition in pipe flow [J].

Nieuwstadt, FTM ;

Draad, AA ;

Kuiken, GDC .

ADVANCES IN TURBULENCES VI, 1996, 36 :371-374

[40] Time-resolved PIV investigations on the laminar-turbulent transition over laminar separation bubbles [J].

Hain, Rainer ;

Kahler, Christian J. ;

Radespiel, Rolf .

SEVENTH IUTAM SYMPOSIUM ON LAMINAR-TURBULENT TRANSITION, 2010, 18 :177-+

← 1 2 3 4 5 →