Kilo-Constant-Current Anemometer System for Surface Hot-Films in Water.

reportActive / Technical Report | Accession Number: ADA322977 | Open PDF

Abstract:

A system for measuring the 3-D separation topology as a large scale underwater submarine model is described. Magnitude-only hot-film sensors are powered by constant current anemometers. The system is designed to use over 1000 sensors. Minima in skin friction magnitude are used to indicate crossflow separation. The hardware and sensor installation is described along with the result of several tests at the David Taylor Research Centers Rotating Arm facility. Future improvements are discussed along with a detailed uncertainty analysis to guide future designs.

Author(s):
Wetzel, Todd G. ; Simpson, Roger L. ; Fleming, Jonathan L.
Author Organization(s):
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF AEROSPACE AND OCE AN ENGINEERING
Descriptive Note:
Technical rept. 1 Sep 94-31 Mar 97,
Supplementary Note:
Original contains color plates: All DTIC and NTIS reproductions will be in black and white.
Pagination:
0078

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
VPI-AOE-226
Contract/Grant Number(s):
N00014-91-J-1732
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_6.1.1_Wired Transmission; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1_Force Support; JCA_1.1_Force Management; JCA_5.3_Planning; JCA_4.3_Maintain; JCA_1.2_Force Preparation; JCA_8_Building Partnerships; JCA_6.4.1_Secure Information Exchange; JCA_1.2.5_Lessons Learned; JCA_4.2_Supply; JCA_8.2_Shape
Communities of Interest:
Sensors
Descriptor(s):
*FLOW SEPARATION, *ANEMOMETERS, HEAT TRANSFER, WATER FLOW, HYDRODYNAMIC CHARACTERISTICS, PRESSURE TRANSDUCERS, SUBMARINE EQUIPMENT, COMPUTATIONAL FLUID DYNAMICS, PRESSURE MEASUREMENT, SHEAR STRESSES, DATA ACQUISITION, SUBMARINE HULLS, MULTISENSORS, SKIN FRICTION, CROSS FLOW, THREE DIMENSIONAL FLOW, SUBMARINE MODELS
Field(s)/Group(s):
Fluid Mechanics, Submarine Engineering
Keyword(s):
HOT FILM ANEMOMETERS
Report Date:
1997 Feb 17
Creation Date:
1997 Apr 09