Average obligated amount per year since period start.
Portion of total contract value already obligated.
Share of total value represented by subawards.
IGF::OT::IGF THERMAL ANEMOMETRY (A.K.A. HOT-WIRE ANEMOMETRY) HAS BEEN A KEY EXPERIMENTAL TECHNIQUE IN FLUID MECHANICS FOR MANY DECADES. DUE TO THE SMALL PHYSICAL SIZE AND HIGH FREQUENCY RESPONSE OF THE SENSORS(RESULTING IN EXCELLENT SPATIAL AND TEMPORAL RESOLUTION), THE TECHNIQUE HAS BEEN WIDELY USED FOR STUDIES OF TURBULENT FLOWS. EVEN WITH THE ADVENT OF NONINTRUSIVE TECHNIQUES SUCH AS LASER DOPPLER VELOCIMETRY (LDV) AND PARTICLE IMAGE VELOCIMETRY (PIV), HOT WIRE ANEMOMETRY IS UNIQUELY CAPABLE OF EXTREMELY HIGH FREQUENCY RESPONSE AND FINE SPATIAL RESOLUTION MEASUREMENTS. VIGYAN PROPOSES A FUNDAMENTAL CHANGE TO THE ANEMOMETER CONFIGURATION, WITH TWO RELATED ASPECTS. FIRST, THE CIRCUITRY TO POWER THE SENSOR AND ESTABLISH ITS OPERATING POINT IS PACKAGED IMMEDIATELY ADJACENT TO THE SENSOR, I.E. IN THE TYPICAL PROBE HOLDER, REMOVING THE EFFECT OF THE CABLE CONNECTING THE SENSOR TO AN EXTERNAL ANEMOMETER. SECOND, MODERN ANALOG-DIGITAL CONVERSION HARDWARE WILL BE EMPLOYED TO THE MAXIMUM EXTENT POSSIBLE, POTENTIALLY INCLUDING DIRECTLY DRIVING THE SENSOR. DATA TRANSMISSION WILL THEN BE FULLY DIGITAL, IMMUNE TO ENVIRONMENTAL VARIATIONS OR ELECTRICAL NOISE. FURTHER, DIRECT EXCITATION WOULD PERMIT THE CHOICE OF OPERATING MODES (NOT JUST VARIATION OF OPERATING POINT) BY CHANGES IN SOFTWARE. THE ULTIMATE OBJECTIVE OF THE RESEARCH IS THEREFORE REFERRED TO AS A "DIGITAL BRIDGE".
Task order obligations
Estimated months remaining until end of performance.
Period of performance
100% of period elapsed
Awarding Agency
NANATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Code: 8000
Loading contract activity data...
Modification ID | Description | Action Date | Obligated Amount | Action Type |
|---|---|---|---|---|
Subaward # | Subawardee | Description | Amount | Action Date |
|---|---|---|---|---|