Flow Quality Survey of the 8- by 6-Foot Supersonic Wind Tunnel (2015 Test) Prior to the 9- by 15-Foot Acoustic Low-Speed Wind Tunnel Acoustic Improvement Modifications

Johnson, Aaron M

关键词: SUPERSONIC WIND TUNNELS;    WIND TUNNEL TESTS;    WIND TUNNEL CALIBRATION;    ACOUSTICS;    LOW SPEED WIND TUNNELS;    FLOW CHARACTERISTICS;    TEST CHAMBERS;   

RP-ID  :  NASA/CR-2018- 219880,E-19503,GRC-E-DAA-TN54197

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Prior to the NASA Glenn Research Center 9- by 15-Foot Low-Speed Wind Tunnel (9x15 LSWT) undergoing significant structural and acoustic modifications beginning in 2017, a flow quality survey (FQS) was conducted to characterize the flow quality of the 8- by 6-Foot Supersonic Wind Tunnel (8x6 SWT) test section and facility air dryer. The data from this FQS will be compared to data collected during a FQS following the completion of the 9x15 LSWT Acoustic Improvement Modifications. This document contains only the FQS data collected in November 2015 using the 16-inch-diameter cone cylinder and a set of twenty air dryer bed wind anemometers. The ability to reach the extents of the 8x6 SWT operating envelope with a large blockage model was verified through the 16-inch-diameter cone cylinder tests. The flow uniformity and angularity at the entrance of the facility air dryer was assessed and quantified using the air dryer bed wind anemometers.