Vortex Flow Detector for Turbine Engine Test Facilities

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F40600-02-C-0012
Agency Tracking Number: 021XP-1111
Amount: $99,997.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
200 Boston Avenue Suite 2500, Medford, MA, 02155
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 C.Mauritz van Schalkwyk
 Senior Engineer
 (781) 306-0609
Business Contact
 David Manion
Title: Communications
Phone: (781) 306-0609
Email: dmanion@mide.com
Research Institution
"Uniform flow conditions are critical in obtaining accurate mass flow measurements from bellmouth-mounted instrumentation. The presence of inlet flow anomalies, in particular vortices, significantly degrades these measurements. Engine test conditions likeswirl and total pressure inlet distortion have unique pressure and velocity characteristics that are distinctly different from that of vortices, and these differences can be used to detect their presence, distinguish them from vortices, and thus ensurerobust operation of the vortex detector under different test conditions. Mid¿ Technology Corp. proposes to use arrays of bellmouth-mounted sensors to measure inlet flow variables and to use the identifying characteristics of the different inlet conditionsto detect the presence of vortices. Both steady and unsteady characteristics will be included in the detector to ensure robust vortex detection over the spectrum test of conditions.During Phase I we will design an offline vortex detector and demonstrate its effectiveness. An optional, limited amount of government supplied test data will also be used to demonstrate the feasibility of the proposed method. An online prototype vortexdetector will be developed and demonstrated during Phase II. Ground testing of engines plays a critical role in assessing performance parameters and ensuring reliable operation under all flight conditions. The costs of running engine tests in an industrial

* Information listed above is at the time of submission. *

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