Low Speed Wind Tunnel Facility (LSWTF)

Metadata Updated: March 8, 2017

Description: This facility consists of a large-scale, low-speed open-loop induction wind tunnel which has been modified to house a linear turbine cascade. A 125-hp electric motor powers an axial flow fan, drawing air at velocities up to 80m/s through an 85 cm by 122 cm test section. The entrance to the tunnel consists of a 3.0 m by 2.7 m rectangular bellmouth inlet. Honeycomb flow straighteners located in the inlet, combined with a gradual 8:1 area contraction, produce a uniform, low turbulence velocity profile at the cascade. Flow velocity uniformity is within [HTML_REMOVED]1% with approximately 0.5% freestream turbulence. This level of turbulence can be augmented through the use of a turbulence-generating grid that produces freestream turbulence levels of approximately 4% at the cascade. The grid may also be fed with high-pressure air to produce turbulence levels of up to 15%. The inlet and test section pivot independently of the exit section, allowing the cascade inlet and exit to be set independently between 0[HTML_REMOVED] and 65[HTML_REMOVED], allowing a total cascade turning of between 0[HTML_REMOVED] and 130[HTML_REMOVED]. The cascade is modular and can accommodate 85 cm span blades of up to 20 cm axial chord. A moving bar wake generator is available to provide periodic upstream unsteadiness over a wide range of reduced frequencies and flow coefficients. A modular splitter plate assembly may also be installed to allow the study of end-wall flows with controlled wall boundary layer conditions. Available instrumentation includes thermocouples, pressure probes, thermal anemometry, and Particle Image Velocimetry. Access is also available for use of a wide range of optical instrumentation techniques.Purpose: This facility is used to perform studies of turbine aerodynamics and flow control.Products: Low Reynolds number and high loading turbine component aerodynamics data. Data on the effects of periodic unsteadiness on turbine performance. Flow control data for application to turbine component design.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017

Metadata Source

Harvested from Federal Laboratory Consortium Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date March 8, 2017
Metadata Updated Date March 8, 2017
Publisher Federal Laboratory Consortium
Unique Identifier 5286DFB6-4E83-4664-AB9A-BFD543B300FD
Maintainer
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None
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Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
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Flcbusinessurl https://flcbusiness.federallabs.org/#/laboratory/5414
Harvest Object Id 36f113db-6eee-4d1f-b1bd-487aa9733b56
Harvest Source Id 5859cfed-553c-48de-a478-b67b5225f6fc
Harvest Source Title Federal Laboratory Consortium Data.json
Mission
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Repphone 937-255-2367
Sizesqft 0
Source Datajson Identifier True
Source Hash 7554664967f89ee04f409eea4a6616aeb2f7603c
Source Schema Version 1.1
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