Approximate Treatment of V/STOL Wall Interference for Closed Circular Tunnels PDF Download
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Author: Harry H. Heyson
Publisher:
ISBN:
Category : Numerical analysis
Languages : en
Pages : 44
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Book Description
An approximate treatment of V/STOL wall interference in a circular tunnel indicates that the interference factors at the model for this tunnel should be of the same order of magnitude as those presently available for a square tunnel of equal cross-sectional area. There is a greater degree of uncertainty with respect to the lateral and longitudinal distributions of interference; however, the available results for the square tunnel should be reasonably close to those of the circular tunnel provided that the model is relatively small in comparison with the test section.
Author: Harry H. Heyson
Publisher:
ISBN:
Category : Numerical analysis
Languages : en
Pages : 44
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Book Description
An approximate treatment of V/STOL wall interference in a circular tunnel indicates that the interference factors at the model for this tunnel should be of the same order of magnitude as those presently available for a square tunnel of equal cross-sectional area. There is a greater degree of uncertainty with respect to the lateral and longitudinal distributions of interference; however, the available results for the square tunnel should be reasonably close to those of the circular tunnel provided that the model is relatively small in comparison with the test section.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 484
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1290
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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: Marie H. Tuttle
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
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Author: Sandra K. Faull
Publisher: Arlington, Va. : United States Historical Documents Institute
ISBN:
Category : Reference
Languages : en
Pages : 608
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 220
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Author: Harry H. Heyson
Publisher:
ISBN:
Category : Atmospherics
Languages : en
Pages : 340
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Book Description
A theory is developed which predicts the interference velocities and interference velocity gradients caused by the walls of the tunnel. Large wake deflections are allowed in both the lateral and vertical directions. The theory includes V/STOL and conventional wall-interference theories and ground effect as special cases. Symmetry and interchange relationships between the interference factors are developed and extensive numerical results are presented. Use of the interference factors to correct data depends upon the availability of detailed aerodynamic treatments in nonuniform flow of the model under test. In most tests the available aerodynamic treatments will be found either inadequate or too time consuming for rigorous routine correction of data relating to lateral-directional stability.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 64
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Book Description
