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Multi-Modal Conversion of a Boundary-Layer Wind Tunnel to Open-Jet Test Cell Youngstown State University
- Format:
- Book
- Conference/Event
- Author/Creator:
- Disotell, Kevin J., author.
- Conference Name:
- AeroTech Digital Summit (2021-03-09 : Live Online, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- A blower-driven, open-circuit wind tunnel at Youngstown StateUniversity has been converted to a multi-modal facility, enablingrapid changes from its base boundary-layer channel configuration toan open-jet test cell to enable a range of test capabilities forground and air vehicle technology development. The existingtest-section entrance geometry of 0.24 m-by-1.0 m (internal flowconfiguration) was converted to a 0.50 m-by-0.50 m cross-section(external flow configuration), making use of the commonality ofupstream flow conditioning components. Redistribution of thecontraction exit area from the internal flow configuration enablesthe facility to maintain the same maximum test speed between thetwo modes, since the blower-driven design allows for flexibility intest section geometry. Reynolds-Averaged Navier-Stokes (RANS)calculations of the flow in the new three-dimensional contractionsection and the free jet in the test cell are reported from thedesign study phase to assess boundary-layer separation andspreading rate from the modeled plane jet. Flow characterization ofthe low-speed (<40 m/s) facility is underway, with measurementsfrom an automated Pitot-tube survey and a three-component sonicanemometer for turbulence properties to be reported in this work.Results of the flow characterization, including cross-sectionaluniformity and turbulence intensity, are compared between the twoconfiguration modes. The multi-modal facility offers flexibleadvantages in discovery-class testing for air-cooled thermalmanagement systems for electrified propulsion, testing of smartcontrols and materials under air load, andnoise/vibration/harshness testing for advanced ground and airmobility components
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-0018
- Access Restriction:
- Restricted for use by site license
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