Internal Performance of Several Divergent-Shroud Ejector Nozzles with High Divergence Angles (Paperback) (ISBN-13: 9781287248422)

Nine divergent-shroud ejector configurations were investigated to determine the effect of shroud divergence angle on ejector internal performance. Unheated dry air was used for both the primary and secondary flows. The decrease in the design-point thrust coefficient with increasing flow divergence angle (angle measured from primary exit to shroud exit) followed very closely a simple relation involving the cosine of the angle. This indicates that design-point thrust performance for divergent-shroud ejectors can be predicted with reasonable accuracy within the range investigated. The decrease in design-point thrust coefficient due to increasing the flow divergence engle from 120deg to 30deg (half-singles) was approximately 6 percent. Ejector air-handling characteristics and the primary-nozzle flow coefficient were not significantly affected by change in shroud divergence angle.

Author: Arthur M. Trout
ISBN-10: 128724842X
ISBN-13: 9781287248422
Publisher: Bibliogov
Language: English
Published: 07/29/2013
Pages: 70
Format: Paperback
Weight: 0.31lbs
Size: 9.69h x 7.44w x 0.15d