An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disk Loading V/STOL Model

An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disk Loading V/STOL Model PDF

Author: Travis W. Binion

Publisher:

Published: 1971

Total Pages: 72

ISBN-13:

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The investigation reported herein is the experimental portion of a unified theoretical and experimental search for a slotted wind tunnel wall configuration with minimal interference for conventional and V/STOL models. It is shown that theory and experiment are in excellent agreement for the classical case provided an appropriate expression is used to relate the wall geometry to the boundary condition. Classical data correction equations are not appropriate for the V/STOL case, however. An additional term, not predicted by theory, is needed to account for changes in the jet wake. Geometric parameters which influence the wall interference quantities are indicated. Wall configurations are shown which will produce interference-free force data to a jet-to-free-stream velocity ratio of 4.5. (Author).

An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disk Loading V/STOL Model

An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disk Loading V/STOL Model PDF

Author: Travis W. Binion

Publisher:

Published: 1971

Total Pages: 0

ISBN-13:

DOWNLOAD EBOOK →

The investigation reported herein is the experimental portion of a unified theoretical and experimental search for a slotted wind tunnel wall configuration with minimal interference for conventional and V/STOL models. It is shown that theory and experiment are in excellent agreement for the classical case provided an appropriate expression is used to relate the wall geometry to the boundary condition. Classical data correction equations are not appropriate for the V/STOL case, however. An additional term, not predicted by theory, is needed to account for changes in the jet wake. Geometric parameters which influence the wall interference quantities are indicated. Wall configurations are shown which will produce interference-free force data to a jet-to-free-stream velocity ratio of 4.5. (Author).

An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disc Loading V/STOL Model

An Investigation of Several Slotted Wind Tunnel Wall Configurations with a High Disc Loading V/STOL Model PDF

Author: T. W Binion (Jr)

Publisher:

Published: 1971

Total Pages: 65

ISBN-13:

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The investigation reported herein is the experimental portion of a unified theoretical and experimental search for a slotted wind tunnel wall configuration with minimal interference for conventional and V/STOL models. It is shown that theory and experiment are in excellent agreement for the classical case provided an appropriate expression is used to relate the wall geometry to the boundary condition. Classical data correction equations are not appropriate for the V/STOL case, however. An additional term, not predicted by theory, is needed to account for changes in the jet wake. Geometric parameters which influence the wall interference quantities are indicated. Wall configurations are shown which will produce interference-free force data to a jet-to-free-stream velocity ratio of 4.5. (Author).

An Experimental Study of Several Wind Tunnel Wall Configurations Using Two V/STOL Model Configurations

An Experimental Study of Several Wind Tunnel Wall Configurations Using Two V/STOL Model Configurations PDF

Author:

Publisher:

Published: 1975

Total Pages: 0

ISBN-13:

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Experiments were conducted in the low speed wind tunnel using two V/STOL models, a jet-flap and a jet-in-fuselage configuration, to search for a wind tunnel wall configuration to minimize wall interference on V/STOL models. Data were also obtained on the jet-flap model with a uniform slotted wall configuration to provide comparisons between theoretical and experimental wall interference. A test section configuration was found which provided some data in reasonable agreement with interference-free results over a wide range of momentum coefficients.

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