Approximate Formulas For The Computation Of Turbulent Boundary Layer Momentum Thicknesses In Compressible Flows
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Approximate Formulas For The Computation Of Turbulent Boundary Layer Momentum Thicknesses In Compressible Flows
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Author : Neal Tetervin
language : en
Publisher:
Release Date : 1946
Approximate Formulas For The Computation Of Turbulent Boundary Layer Momentum Thicknesses In Compressible Flows written by Neal Tetervin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1946 with Aerodynamics categories.
Summary: Approximate formulas for the computation of the momentum thicknesses of turbulent boundary layers on two-dimensional bodies, on bodies of revolution at zero angle of attack, and on the inner surfaces of round channels all in compressible flow are given in the form of integrals that can be conveniently computed. The formulas involve the assumptions that the momentum thickness may be computed by use of a boundary-layer velocity profile which is fixed and that skin-friction formulas for flat plates may be used in the computation of boundary-layer thicknesses in flow with pressure gradients. The effect of density changes on the ration of the displacement thickness to the momentum thickness of the boundary layer is taken into account. Use is made of the experimental finding that the skin-friction coefficient for turbulent flow is independent of Mach number. The computations indicated that the effect of density changes on the momentum thickness in flows with pressure gradients is small for subsonic flows.
Approximate Turbulent Boundary Layer Development In Plane Compressible Flow Along Thermally Insulated Surfaces With Application To Supersonic Tunnel Contour Correction
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Author : Maurice Tucker
language : en
Publisher:
Release Date : 1950
Approximate Turbulent Boundary Layer Development In Plane Compressible Flow Along Thermally Insulated Surfaces With Application To Supersonic Tunnel Contour Correction written by Maurice Tucker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1950 with Air flow categories.
As an application of the method, the contour correction of supersonic nozzles for the effects of boundary-layer development is discussed from the requirement of continuity of mass flow and from the requirement of expansion- and shock-wave elimination.
Wartime Report
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Author :
language : en
Publisher:
Release Date : 194?
Wartime Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 194? with Aeronautics categories.
Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.
Naca Wartime Report
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date :
Naca Wartime Report written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Aeronautics categories.
Wartime Report
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date :
Wartime Report written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Aeronautics categories.
Wartime Report
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Author :
language : en
Publisher:
Release Date :
Wartime Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Aeronautics categories.
Computation Of Turbulent Boundary Layers 1968 Afosr Ifp Stanford Conference
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Author : Stephen Jay Kline
language : en
Publisher:
Release Date : 1969
Computation Of Turbulent Boundary Layers 1968 Afosr Ifp Stanford Conference written by Stephen Jay Kline and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Boundary layer categories.
A Method Of Quadrature For Calculation Of The Laminar And Turbulent Boundary Layer In Case Of Plane And Rotationally Symmetrical Flow
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Author : Erich Truckenbrodt
language : en
Publisher:
Release Date : 1955
A Method Of Quadrature For Calculation Of The Laminar And Turbulent Boundary Layer In Case Of Plane And Rotationally Symmetrical Flow written by Erich Truckenbrodt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with Aerodynamics categories.
Abstract: For calculation of the characteristic parameters of the boundary layer (momentum-loss thickness and form parameter for the velocity profile), two quadrature formulas are given which are valid for the laminar as well as for the turbulent state of flow. These formulas cover both the two-dimensional and the rotationally symmetrical case. The calculation of the momentum-loss thickness is carried out by a simple integration of the energy theorem. The equation for the form parameter is obtained by coupling of the momentum theorem with the energy theorem. Knowledge of the derivatives of the velocity distribution and of the radius of the body along the length x is not necessary.
Numerical Solution Of The Equations For Compressible Laminar Transitional And Turbulent Boundary Layers And Comparisons With Experimental Data
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Author : Julius E. Harris
language : en
Publisher:
Release Date : 1971
Numerical Solution Of The Equations For Compressible Laminar Transitional And Turbulent Boundary Layers And Comparisons With Experimental Data written by Julius E. Harris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Aerodynamics, Hypersonic categories.
A numerical method for solving the equations for laminar, transitional, and turbulent compressible boundary layers for either planar or axisymmetric flows is presented. The fully developed turbulent region is treated by replacing the Reynolds stress terms with an eddy viscosity model. The mean properties of the transitional boundary layer are calculated by multiplying the eddy viscosity by an intermittency function based on the statistical production and growth of the turbulent spots. A specifiable turbulent Prandtl number relates the turbulent flux of heat to the eddy viscosity. A three-point implicit finite-difference scheme is used to solve the system of equations. The momentum and energy equations are solved simultaneously without iteration. Numerous test cases are compared with experimental data for supersonic and hypersonic flows; these cases include flows with both favorable and mildly unfavorable pressure gradient histories, mass flux at the wall, and traverse curvature.
Advances In Heat Transfer
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Author :
language : en
Publisher: Academic Press
Release Date : 1965-01-01
Advances In Heat Transfer written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965-01-01 with Science categories.
Advances in Heat Transfer