A Numerical Method of Calculating the Boundary-induced Interference in Slotted of Perforated Wind Tunnels of Rectangular Cross Section PDF Download
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Author: James D. Keller Publisher: ISBN: Category : Boundary layer Languages : en Pages : 26
Book Description
A numerical method is presented for calculating the boundary-induced interference at subsonic speeds in wind tunnels of rectangular cross section with slotted or perforated walls. The slot width or wall porosity can vary throughout the test section. The interference can be computed at any point in the test section. The model can be any configuration and can be located anywhere in the test section. Several examples are given, and comparison is made with other methods were available.
Author: James D. Keller Publisher: ISBN: Category : Boundary layer Languages : en Pages : 26
Book Description
A numerical method is presented for calculating the boundary-induced interference at subsonic speeds in wind tunnels of rectangular cross section with slotted or perforated walls. The slot width or wall porosity can vary throughout the test section. The interference can be computed at any point in the test section. The model can be any configuration and can be located anywhere in the test section. Several examples are given, and comparison is made with other methods were available.
Author: James D. Keller Publisher: ISBN: Category : Boundary layer Languages : en Pages : 26
Book Description
A numerical method is presented for calculating the incompressible boundary-induced interference in wind tunnels of rectangular cross section with slotted or perforated walls. The method includes a wall representation which is capable of satisfying a generalized homogeneous boundary condition including the effects of viscosity within the slots. The effects of viscosity in the slots are found to be very significant. The method allows for a variation in the boundary conditions along the tunnel walls. The model can be any configuration and can be located anywhere in the test section. The interference can be computed at any point in the test section.
Author: United States. Superintendent of Documents Publisher: ISBN: Category : Government publications Languages : en Pages : 1194
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Author: Ray H. Wright Publisher: ISBN: Category : Airplanes Languages : en Pages : 42
Book Description
An approximation method has been developed for calculating the spanwise distribution of wind-tunnel-boundary upwash interference on lift of wings in rectangular perforated-wall test sections. This method is applied to square test sections with an assumed effective permeability constant of 0.6. A problem of considerable difficulty in practical application of the method presented is the estimation of an effective permeability constant. Because of the variation of the upwash interference with Mach number and of the influence of boundary layer on the effective permeability factor, the boundary interference in a perforated-wall wind-tunnel test section at high subsonic Mach numbers is likely to be of the nature of that in an open-throat tunnel.
Author: Barrett Stone Baldwin Publisher: ISBN: Category : Aeronautics Languages : en Pages : 46
Book Description
Linearized compressible-flow analysis is applied to the study of wind-tunnel-wall interference for subsonic flow in either two-dimensional or circular test sections having slotted or porous walls. Expressions are developed for evaluating blockage and lift interference.
Author: C. F. Lo Publisher: ISBN: Category : Languages : en Pages : 53
Book Description
The boundary interference at subsonic speeds is presented for rectangular wind tunnels with perforated walls. The point-matching method is used for the analysis with an equivalent homogeneous boundary condition at the perforated walls. Numerical results are given for rectangular wind tunnels having various porosities and height-to-width ratios of 1.0, 0.8, and 0.5. (Author).
Author: James D. Keller
Author: James D. Keller![Numerical Method of Calculation Boundary-induced Interference in Slotted Or Perforated Wind Tunnels of Rectangular Cross Section [with List of References] PDF](https://books.google.com/books/content/images/frontcover/EpevwgEACAAJ?fife=w80-h100)
Author: 
Author: James D. Keller
Author: United States. Superintendent of Documents
Author: Benferd L. Schilling
Author: Ray H. Wright
Author: 
Author: Barrett Stone Baldwin
Author: Marie H. Tuttle
Author: C. F. Lo