Accession Number:

AD0735383

Title:

Effect of Swirl on Conical Diffuser Performance,

Descriptive Note:

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OHIO DIV OF FLUID THERMAL AND AEROSPACE SCIENCES

Personal Author(s):

• Prasad,Arbind
• Ostrach,Simon

Report Date:

1971-08-20

Pagination or Media Count:

78.0

Abstract:

The report deals with an experimental investigation of the effect of swirl on conical diffuser performance. Data on the gross performance of conical diffusers are reported. The effect of swirl on the separation phenomena in a conical diffuser has been studied. Success has been achieved in avoiding the separation completely through swirl in conical diffusers of a divergence angle as large as 35 degrees. An optimum swirl angle has been found for each diffuser. Turbulence level measurements are taken and they indicate that turbulence is not a dominant factor in eliminating separation. Author

Descriptors:

• (*EXHAUST DIFFUSERS
• VORTICES)
• TURBULENCE
• CONICAL BODIES
• FLOW SEPARATION
• FLOW FIELDS
• PRESSURE
• VELOCITY
• TEST METHODS

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE