Analytical Study Of Ventilated Wind Tunnel Boundary Interference On V Stol Models Including Wake Curvature And Decay Effects
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Author |
: E. M. Kraft |
Publisher |
: |
Total Pages |
: 74 |
Release |
: 1974 |
ISBN-10 |
: UOM:39015104953099 |
ISBN-13 |
: |
Rating |
: 4/5 (99 Downloads) |
Synopsis Analytical Study of Ventilated Wind Tunnel Boundary Interference on V/STOL Models Including Wake Curvature and Decay Effects by : E. M. Kraft
The wind tunnel boundary interference on a V/STOL model is calculated in a rectangular test section with solid vertical walls and ventilated (perforated or slotted) horizontal walls. The interference is found by applying the small perturbation theory of an incompressible fluid to the boundary value problem. The theory uses an image method in addition to Fourier transforms with an equivalent homogeneous boundary condition on the ventilated wall. The mathematical representation of the V/STOL model accounts for the curvature and decay of the wake. The assumption of a constant wake strength produces a paradox in that the maximum value of the interference factors increases as the initial jet velocity decreases. The most significant aspect of the analysis shows that nonlinear cross-flow effects at the tunnel boundary are important in the V/STOL case, and a quasi-linear approximation to these effects is introduced into the solution providing good agreement with experimental data.
Author |
: T. W. Binion (Jr.) |
Publisher |
: |
Total Pages |
: 38 |
Release |
: 1975 |
ISBN-10 |
: UOM:39015104958601 |
ISBN-13 |
: |
Rating |
: 4/5 (01 Downloads) |
Synopsis An Experimental Study of Several Wind Tunnel Wall Configurations Using Two V/STOL Model Configurations by : T. W. Binion (Jr.)
Author |
: |
Publisher |
: |
Total Pages |
: 0 |
Release |
: 1974 |
ISBN-10 |
: OCLC:227364337 |
ISBN-13 |
: |
Rating |
: 4/5 (37 Downloads) |
Synopsis Analytical Study of Ventilated Wind Tunnel Boundary Interference on V/STOL Models Including Wake Curvature and Decay Effects by :
The wind tunnel boundary interference on a V/STOL model is calculated in a rectangular test section with solid vertical walls and ventilated (perforated or slotted) horizontal walls. The interference is found by applying the small perturbation theory of an incompressible fluid to the boundary value problem. The theory uses an image method in addition to Fourier transforms with an equivalent homogeneous boundary condition on the ventilated wall. The mathematical representation of the V/STOL model accounts for the curvature and decay of the wake. The assumption of a constant wake strength produces a paradox in that the maximum value of the interference factors increases as the initial jet velocity decreases. The most significant aspect of the analysis shows that nonlinear cross-flow effects at the tunnel boundary are important in the V/STOL case, and a quasi-linear approximation to these effects is introduced into the solution providing good agreement with experimental data.
Author |
: |
Publisher |
: |
Total Pages |
: 64 |
Release |
: 1986 |
ISBN-10 |
: MINN:31951P00218741D |
ISBN-13 |
: |
Rating |
: 4/5 (1D Downloads) |
Synopsis NASA Technical Memorandum by :
Author |
: |
Publisher |
: |
Total Pages |
: 0 |
Release |
: 1974 |
ISBN-10 |
: OCLC:227364337 |
ISBN-13 |
: |
Rating |
: 4/5 (37 Downloads) |
Synopsis Analytical Study of Ventilated Wind Tunnel Boundary Interference on V/STOL Models Including Wake Curvature and Decay Effects by :
The wind tunnel boundary interference on a V/STOL model is calculated in a rectangular test section with solid vertical walls and ventilated (perforated or slotted) horizontal walls. The interference is found by applying the small perturbation theory of an incompressible fluid to the boundary value problem. The theory uses an image method in addition to Fourier transforms with an equivalent homogeneous boundary condition on the ventilated wall. The mathematical representation of the V/STOL model accounts for the curvature and decay of the wake. The assumption of a constant wake strength produces a paradox in that the maximum value of the interference factors increases as the initial jet velocity decreases. The most significant aspect of the analysis shows that nonlinear cross-flow effects at the tunnel boundary are important in the V/STOL case, and a quasi-linear approximation to these effects is introduced into the solution providing good agreement with experimental data.
Author |
: |
Publisher |
: |
Total Pages |
: 794 |
Release |
: 1975 |
ISBN-10 |
: OSU:32435053882676 |
ISBN-13 |
: |
Rating |
: 4/5 (76 Downloads) |
Synopsis Scientific and Technical Aerospace Reports by :
Author |
: Marie H. Tuttle |
Publisher |
: |
Total Pages |
: 58 |
Release |
: 1986 |
ISBN-10 |
: STANFORD:36105024733763 |
ISBN-13 |
: |
Rating |
: 4/5 (63 Downloads) |
Synopsis Wind Tunnel Wall Interference in V/STOL and High Lift Testing by : Marie H. Tuttle
Author |
: Marie H. Tuttle |
Publisher |
: |
Total Pages |
: 60 |
Release |
: 1986 |
ISBN-10 |
: NASA:31769000576317 |
ISBN-13 |
: |
Rating |
: 4/5 (17 Downloads) |
Synopsis Wind Tunnel Wall Interference in V/STOL and High Lift Testing: A Selected, Annotated Bibliography by : Marie H. Tuttle
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: |
Publisher |
: |
Total Pages |
: 504 |
Release |
: 1975 |
ISBN-10 |
: COLUMBIA:AR00131660 |
ISBN-13 |
: |
Rating |
: 4/5 (60 Downloads) |
Synopsis Transportation... Weekly Government Abstracts by :
Author |
: |
Publisher |
: |
Total Pages |
: 882 |
Release |
: 1975 |
ISBN-10 |
: MINN:30000008703088 |
ISBN-13 |
: |
Rating |
: 4/5 (88 Downloads) |
Synopsis Government Reports Annual Index by :