Author: Paul S. Granville
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages : 52
Book Description
Mixing-length Formulations for Turbulent Boundary Layers Over Arbitrarily Rough Surfaces
Author: Paul S. Granville
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages : 52
Book Description
Publisher:
ISBN:
Category : Turbulence
Languages : en
Pages : 52
Book Description
Mixing-Length Formulations for Turbulent Boundary Layers Over Arbitrarily Rough Surfaces
Author: P. S. Granville
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
Book Description
Mixing lengths are formulated for turbulent boundary layers over arbitrarily rough surfaces from both the van Driest and from the Rotta procedures. The associated eddy viscosities and the associated turbulent kinetic energies and turbulent dissipation rates are also formulated. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 45
Book Description
Mixing lengths are formulated for turbulent boundary layers over arbitrarily rough surfaces from both the van Driest and from the Rotta procedures. The associated eddy viscosities and the associated turbulent kinetic energies and turbulent dissipation rates are also formulated. (Author).
Computations of Incompressible Turbulent Boundary Layers on Rough Surfaces
Author: Y. Y. Chan
Publisher: 1971.
ISBN:
Category : Air flow
Languages : en
Pages : 25
Book Description
The extended mixing length formulation for the computation of incompressible turbulent boundary layers has been applied with success to flows over rough surfaces. The roughness effect is introduced into the computation scheme through the boundary conditions by defining a slip velocity at the surface. The method predicts the mean velocity and the turbulent shear stress distributions accurately except for a region near the wall where the flow is influenced locally by the roughness element. (Author).
Publisher: 1971.
ISBN:
Category : Air flow
Languages : en
Pages : 25
Book Description
The extended mixing length formulation for the computation of incompressible turbulent boundary layers has been applied with success to flows over rough surfaces. The roughness effect is introduced into the computation scheme through the boundary conditions by defining a slip velocity at the surface. The method predicts the mean velocity and the turbulent shear stress distributions accurately except for a region near the wall where the flow is influenced locally by the roughness element. (Author).
The Calculation of Compressible Transitional, Turbulent, and Relaminarizational Boundary Layers Over Smooth and Rough Surfaces Using an Extended Mixing-Length Hypothesis
Author: B. K. Hodge
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
Book Description
Numerical calculations based on the compressible boundary-layer equations and an integral form of the kinetic-energy-of-turbulence (IKET) equation are presented for a variety of conditions. The addition of the IKET equation permits the streamwise computation of an additional dependent variable normally taken as an empirical constant in conventional mixing-length formulations. A baseline turbulence model is developed and then modified to account for the effects of favorable and adverse pressure gradients, roughness, and transpiration. Examples given include adverse and favorable pressure gradients, relaminarization, acoustic-energy-induced transition, surface roughness, and transpiration. The IKET-based extended mixing-length hypothesis is shown to be considerably more flexible than conventional mixing-length turbulence models. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
Book Description
Numerical calculations based on the compressible boundary-layer equations and an integral form of the kinetic-energy-of-turbulence (IKET) equation are presented for a variety of conditions. The addition of the IKET equation permits the streamwise computation of an additional dependent variable normally taken as an empirical constant in conventional mixing-length formulations. A baseline turbulence model is developed and then modified to account for the effects of favorable and adverse pressure gradients, roughness, and transpiration. Examples given include adverse and favorable pressure gradients, relaminarization, acoustic-energy-induced transition, surface roughness, and transpiration. The IKET-based extended mixing-length hypothesis is shown to be considerably more flexible than conventional mixing-length turbulence models. (Author).
Analysis of Turbulent Boundary Layers
Author: Tuncer Cebeci
Publisher: Elsevier
ISBN: 0323151051
Category : Technology & Engineering
Languages : en
Pages : 423
Book Description
Analysis of Turbulent Boundary Layers focuses on turbulent flows meeting the requirements for the boundary-layer or thin-shear-layer approximations. Its approach is devising relatively fundamental, and often subtle, empirical engineering correlations, which are then introduced into various forms of describing equations for final solution. After introducing the topic on turbulence, the book examines the conservation equations for compressible turbulent flows, boundary-layer equations, and general behavior of turbulent boundary layers. The latter chapters describe the CS method for calculating two-dimensional and axisymmetric laminar and turbulent boundary layers. This book will be useful to readers who have advanced knowledge in fluid mechanics, especially to engineers who study the important problems of design.
Publisher: Elsevier
ISBN: 0323151051
Category : Technology & Engineering
Languages : en
Pages : 423
Book Description
Analysis of Turbulent Boundary Layers focuses on turbulent flows meeting the requirements for the boundary-layer or thin-shear-layer approximations. Its approach is devising relatively fundamental, and often subtle, empirical engineering correlations, which are then introduced into various forms of describing equations for final solution. After introducing the topic on turbulence, the book examines the conservation equations for compressible turbulent flows, boundary-layer equations, and general behavior of turbulent boundary layers. The latter chapters describe the CS method for calculating two-dimensional and axisymmetric laminar and turbulent boundary layers. This book will be useful to readers who have advanced knowledge in fluid mechanics, especially to engineers who study the important problems of design.
Eddy Viscosities and Mixing Lengths for Turbulent Boundary Layers on Flat Plates, Smooth Or Rough
Author: Paul S. Granville
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 44
Book Description
Publisher:
ISBN:
Category : Eddies
Languages : en
Pages : 44
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Tenth Australasian Fluid Mechanics Conference
Viscous and Interacting Flow Field Effects
Author:
Publisher:
ISBN:
Category : Turbulent boundary layer
Languages : en
Pages : 316
Book Description
Publisher:
ISBN:
Category : Turbulent boundary layer
Languages : en
Pages : 316
Book Description
Proceedings of the Twenty-first American Towing Tank Conference
Author: Richard F. Messalle
Publisher: National Academies
ISBN:
Category : Cavitation
Languages : en
Pages : 550
Book Description
Publisher: National Academies
ISBN:
Category : Cavitation
Languages : en
Pages : 550
Book Description