Instrumentation for Wind Tunnel Transient Growth Studies
Abstract
Wind tunnel studies on the laminar-to-turbulent transition mechanism known as transient growth require instrumentation suitable for the production of high but controllable levels of freestream turbulence, model surfaces relevant to transition problems of engineering interest, and hotwire instrumentation suitable for measuring disturbances that lead to transition. Ongoing and planned experiments on transient growth at the Case Western Reserve University Wind Tunnel Laboratory required instrumentation in each of these categories to enable investigations in high-disturbance environments such as those found on the blades of low-pressure turbines. The DURIP grant for which this is the final technical report provided for instrumentation purchases in each of the key areas. Specifically, the grant provided for a significant improvement in the Laboratory's hotwire anemometry capability through the addition of four additional hotwire channels and numerous hotwire probes, the fabrication of a variable-angle cascade test section and PakB blade row, and the fabrication of an active turbulence generator.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 10, 2004
- Accession Number
- ADA421045
Entities
People
- Edward B. White
Organizations
- Case Western Reserve University