Operational Performance Characteristics of a Multiply-Shrouded, Angled-Diffuser Stack Gas Eductor in Turbulent Cross-Flow.
Abstract
Performance characteristics of two multiple-ring diffuser eductors were determined from collected data. The performance characteristics of a five ring diffuser model were compared with a geometrically similar model tested in cold flow. Model similarity for comparison was maintained through the Mach number. Both models were tested in a turbulent cross-flow simulating a 29.5 knot relative wind. Minor improvement in the pumping coefficient was seen to occur when cross-flow was introduced. External surface temperature measurements along the model assembly were recorded by two methods for comparative analysis. The effect of cross-flow is seen in a significant surface temperature reduction in the shroud assembly while apparent degradation of film cooling effectiveness at the diffuser rings resulted in minimal temperature change. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1983
- Accession Number
- ADA139953
Entities
People
- R. E. Staples Jr
Organizations
- Naval Postgraduate School