SBIR 95-1 SOLICITATION
INTERACTIVE FLOW MEARSUREMENT (IFM) SYSTEM FOR HIGH REYNOLDS NUMBER WIND TUNNEL TESTING
An Interactive Flow Measurement (IFM) system will be developed for conventional and
cryogenic high-Reynolds number wind-tunnel testing. The IFM system will be the first
interactive flow diagnostics tool for on-line detection and display of boundary-layer
transition and flow separation. Such a system will allow the test engineer to change
flow conditions and instantaneously observe the effects of these changes on the boundary
layer characteristics and aerodynamic design performance of the test model without
interrupting the tunnel operation. IFM will provide designers the freedom to effortlessly
fine tune model configurations and try "what-if" scenarios.
The innovative, hands-off instrumentation approach has become possible thanks to recent
advances made by Tao Systems in multi-channel constant voltage anemometers and quantitative
flow diagnostic techniques for boundary-layer measurements using multi-element, surface
hot-film sensors. IFM will make design work and CFD code validation efforts faster, will
increase productivity by an order of magnitude with corresponding savings in tunnel-test-
hours and cost. A proof-of-concept instrumentation and flow diagnostics system will be built
in Phase I to detect and display the instantaneous spatial location of boundary-layer transition.
Potential Commercial Applications:
The proposed innovation meets the critical need for real-time detection of critical
boundary-layer phenomena in high Reynolds number wind-tunnel testing. The proposed
system will be a useful tool for CFD code validation testing, evaluation of new design
configurations, as well as for routine wind-tunnel testing of complete aircraft and
their components. The proposed interactive flow diagnostics tool has the potential
to revolutionize active flow control technology.
Name and Address of Offeror:
Tao of Systems Integration, Inc.
22 Enterprise Parkway, Suite 150
Hampton, VA 23666
Small Business Innovation Research Program (SBIR) &
Small Business Technology Transfer Program (STTR) Programs
Electronic Management System (EMS)
National Aeronautics and Space Administration (NASA)
The SBIR/STTR EMS site is maintained by Steve
Hu, Hughes STX.
For comments and questions, contact
Updated: Feb. 7, 1996