Subscale Study of Engine Bellmouth Inlet Vortices in Test Cell R1D

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Abstract:

A technology program was conducted in Test Cell R1D concerning bellmouth flow quality. Flow visualization was used to determine the presence of inlet vortices. It was shown that these vortices can be eliminated using a 45-deg conical extension attached to the bellmouth inlet. Design guidelines were developed to assist in determining acceptable cone angles and axial and radial gaps between the conical extension and the bellmouth inlet. AN

Author(s):
Reed, James A. ; Hiers, Jr, Robert S.
Author Organization(s):
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
Descriptive Note:
Final rept. Oct 1992-Sep 1994
Supplementary Note:
Prepared in collaboration with Sverdrup Technology, Inc., Tullahoma, TN, AEDC Group.
Pagination:
0122

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AEDC-TR-95-5
Monitor Series:
AEDC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_5.5.3_Establish Metrics; JCA_5.5_Direct; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_1.2.7_Experimentation; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Air Platforms
Descriptor(s):
*INLETS, *VORTICES, ANGLES, AXIAL FLOW, CONICAL BODIES, DISTORTION, DYNAMIC PRESSURE, EXPERIMENTAL DATA, FLOW FIELDS, FLOW VISUALIZATION, GAS TURBINES, MACH NUMBER, MASS FLOW, PRESSURE GRADIENTS, PRESSURE MEASUREMENT, PROFILES, PROPULSION SYSTEMS, QUALITY, RADIAL FLOW, SCALE MODELS, STEADY STATE, TEST AND EVALUATION, TURBULENCE
Field(s)/Group(s):
Fluid Mechanics, Jet and Gas Turbine Engines
Keyword(s):
BELLMOUTHS, PRESSURE LOSS
Report Date:
1995 May 01
Creation Date:
1995 Jul 13