A new way to describe the transition characteristics of a rotating-disk boundary-layer flow

被引：27

作者：

Imayama, Shintaro ^{[1
]}

Alfredsson, P. Henrik ^{[1
]}

Lingwood, R. J. ^{[1
,2
]}

机构：

[1] KTH Mech, Linne FLOW Ctr, SE-10044 Stockholm, Sweden

[2] Univ Cambridge, Cambridge CB23 8AQ, England

来源：

PHYSICS OF FLUIDS | 2012年 / 24卷 / 03期

基金：

瑞典研究理事会;

关键词：

ABSOLUTE INSTABILITY; TURBULENCE;

D O I：

10.1063/1.3696020

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A new method of graphically representing the transition stages of a rotating-disk flow is presented. The probability density function contour map of the fluctuating azimuthal disturbance velocity is used to show the characteristics of the boundary-layer flow over the rotating disk as a function of Reynolds numbers. Compared with the variation of the disturbance amplitude (rms) or spectral distribution, this map more clearly shows the changing flow characteristics through the laminar, transitional, and turbulent regions. This method may also be useful to characterize the different stages in the transition process not only for the rotating-disk flow but also for other flows. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3696020]

引用

页数：7

共 15 条

[1] The viscous sublayer revisited-exploiting self-similarity to determine the wall position and friction velocity [J].

Alfredsson, P. Henrik ;

Orlu, Ramis ;

Schlatter, Philipp .

EXPERIMENTS IN FLUIDS, 2011, 51 (01) :271-280

[2] SECONDARY INSTABILITY IN ROTATING-DISK FLOW [J].

BALACHANDAR, S ;

STREETT, CL ;

MALIK, MR .

JOURNAL OF FLUID MECHANICS, 1992, 242 :323-347

[3] Transition to turbulence in rotating-disk boundary layers - convective and absolute instabilities [J].

Corke, Thomas C. ;

Matlis, Eric H. ;

Othman, Hesham .

JOURNAL OF ENGINEERING MATHEMATICS, 2007, 57 (03) :253-272

[4] ON THE STABILITY OF 3-DIMENSIONAL BOUNDARY LAYERS WITH APPLICATION TO THE FLOW DUE TO A ROTATING DISK [J].

GREGORY, N ;

STUART, JT ;

WALKER, WS .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 248 (943) :155-199

[5] LOCAL AND GLOBAL INSTABILITIES IN SPATIALLY DEVELOPING FLOWS [J].

HUERRE, P ;

MONKEWITZ, PA .

ANNUAL REVIEW OF FLUID MECHANICS, 1990, 22 :473-537

[6] The instability of the boundary layer over a disk rotating in an enforced axial flow [J].

Hussain, Z. ;

Garrett, S. J. ;

Stephen, S. O. .

PHYSICS OF FLUIDS, 2011, 23 (11)

[7] ON THE STRUCTURE OF TURBULENT CHANNEL FLOW [J].

JOHANSSON, AV ;

ALFREDSSON, PH .

JOURNAL OF FLUID MECHANICS, 1982, 122 (SEP) :295-314

[8] STUDY ON BOUNDARY-LAYER-TRANSITION OF A ROTATING-DISK [J].

KOHAMA, Y .

ACTA MECHANICA, 1984, 50 (3-4) :193-199

[9] The effects of surface mass flux on the instability of the BEK system of rotating boundary-layer flows [J].

Lingwood, R. J. ;

Garrett, S. J. .

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, 2011, 30 (03) :299-310

[10] ABSOLUTE INSTABILITY OF THE BOUNDARY-LAYER ON A ROTATING-DISK [J].

LINGWOOD, RJ .

JOURNAL OF FLUID MECHANICS, 1995, 299 :17-33

← 1 2 →