RECONSTRUCTING THREE-DIMENSIONAL FLUID VELOCITY VECTOR AND TEMPERATURE FIELDS FROM ACOUSTIC TRANSMISSION MEASUREMENTS.

S. A. Johnson, J. F. Greenleaf, M. Tanaka, G. Flandro

Research output: Contribution to conferencePaper

Abstract

A theory with supporting experimental evidence is presented for reconstructing the three-dimensional fluid velocity vector field and temperature field in a moving medium from a set of measurements of the acoustic propagation time between a multiplicity of transmitter and receiver locations on a stationary boundary surface. The inversion of the integrals relating the acoustic propagation path to the propagation time measurements is affected by linearization and discrete approximation of the integrals and application of an algebraic reconstruction technique (ART). Since this technique does not require the presence of scattering centers or the optical transparency of the medium, it may be applied in many cases (i. e. , turbid, opaque, or chemically pure media) where Doppler or optical (e. g. , laser holography) methods fail.

Original languageEnglish (US)
StatePublished - Jan 1 2017
EventProc of the Symp on Flow Meas in Open Channels and Closed Conduits, NBS - Gaithersburg, MD, USA
Duration: Feb 23 1977Feb 25 1977

Other

OtherProc of the Symp on Flow Meas in Open Channels and Closed Conduits, NBS
CityGaithersburg, MD, USA
Period2/23/772/25/77

ASJC Scopus subject areas

  • Engineering(all)

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    Johnson, S. A., Greenleaf, J. F., Tanaka, M., & Flandro, G. (2017). RECONSTRUCTING THREE-DIMENSIONAL FLUID VELOCITY VECTOR AND TEMPERATURE FIELDS FROM ACOUSTIC TRANSMISSION MEASUREMENTS.. Paper presented at Proc of the Symp on Flow Meas in Open Channels and Closed Conduits, NBS, Gaithersburg, MD, USA, .