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Opportunity at National Institute of Standards and Technology (NIST)

Next Generation Flow Measurement Standards and Technology

Location

Physical Measurement Laboratory, Sensor Science Division

RO# Location
50.68.51.B7548 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Berg, Robert Frank robert.berg@nist.gov 301.975.2466
Gillis, Keith Alan keith.gillis@nist.gov 301.975.2468
Johnson, Aaron Nathaniel aaron.johnson@nist.gov 301.975.5954
Moldover, M. R. michael.moldover@nist.gov 301.975.2459

Description

Research opportunities are available to advance the measurement of fluid flow, airspeed, liquid density and volume, and the measurement and quantum mechanical calculation of the fundamental thermodynamic and transport properties of process gases. We are particularly interested in the development of next-generation standards for measuring flow including (1) the use of critical venturis and/or ultrasonic flow meters as primary flow standards, (2) CFD modeling validated by experiments characterizing how installation effects (i.e., swirl, asymmetric velocity profile, unsteady flow) effect the performance of various flow meter types (e.g., turbine meters, critical venturis, ultrasonic flow meters), (3) development of theoretical models validated by experiments that accurately predict changes in flow meter performance for different fluids, and (4) development of flow measurement techniques to provide low uncertainty measurement of smokestack green house gas emissions.

 

References

Wright JD, Johnson AN: NCSL International Measure 5: 30, 2010

Johnson AN, et al: ASME Journal of Fluids Engineering 128: 170, 2006

 

Keywords:
Gas and liquid flow measurement; Wind speed measurement; Ultrasonic flowmeters; Greenhouse gas smokestack emissions; Flow measurement uncertainty and traceability; Critical flow venturis (CFVs); Continuous emissions monitoring (CEM); Pitot traverse; Sonic nozzles;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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