Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data PDF Download

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Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data

Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data PDF Author: Julius E. Harris
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 92

Book Description
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.

Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data

Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data PDF Author: Julius E. Harris
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 92

Book Description
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.

Numerical Solution of the Compressible Laminar, Transitional, and Turbulent Boundary Layer Equations with Comparisons to Experimental Data

Numerical Solution of the Compressible Laminar, Transitional, and Turbulent Boundary Layer Equations with Comparisons to Experimental Data PDF Author: Julius Elmore Harris
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 344

Book Description


Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data

Numerical Solution of the Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layers and Comparisons with Experimental Data PDF Author: Julius E. Harris
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 92

Book Description
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.

Numerical Solution of Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layer and Comparisons with Experimental Data [with of References]

Numerical Solution of Equations for Compressible Laminar, Transitional, and Turbulent Boundary Layer and Comparisons with Experimental Data [with of References] PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 84

Book Description


Experimental Laminar, Transitional, and Turbulent Boundary-layer Profiles on a Wedge at Local Mach Number 6.5 and Comparisons with Theory

Experimental Laminar, Transitional, and Turbulent Boundary-layer Profiles on a Wedge at Local Mach Number 6.5 and Comparisons with Theory PDF Author: Michael C. Fischer
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 66

Book Description
Wind tunnel investigation of laminar, transitional, and turbulent boundary layer profiles on wedge at hypersonic speed to confirm theoretical analysis.

Numerical Solution Of The Compressible Laminar, Transitional And Turbulent Boundary Layer Equations With Comparisions to Experimental Data

Numerical Solution Of The Compressible Laminar, Transitional And Turbulent Boundary Layer Equations With Comparisions to Experimental Data PDF Author: Julius Elmore Harris
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

Book Description


Calculation of Compressible, Nonadiabatic Boundary Layers in Laminar, Transitional and Turbulent Flow by the Method of Integral Relations

Calculation of Compressible, Nonadiabatic Boundary Layers in Laminar, Transitional and Turbulent Flow by the Method of Integral Relations PDF Author: Gary D. Kuhn
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 140

Book Description


NASA Technical Paper

NASA Technical Paper PDF Author:
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Category : Astronautics
Languages : en
Pages : 826

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NASA SP.

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Category : Aeronautics
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