Measurement of Reference Bubble Velocity Vector for a Local 4 Sensor Probe Using Orthogonal High Speed Cameras [PDF]
, 2007 In recent years, there has been an increase in the level of interest shown in making flow rate measurements in multiphase flow. This in part has been brought about by the metering requirements of the oil and natural gas industries.
Lucas, Gary, Pradhan, Suman, Zhao, X.
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VHF coherent radar signals from the E region ionosphere and the relationship to electron drift velocity and ion acoustic velocity [PDF]
, 2002 The Scandinavian Twin Auroral Radar Experiment (STARE) coherent radar system measures the Doppler shifts caused by ∼1 m plasma waves in the high-latitude E region ionosphere.
Nielsen, E. +2 more
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Vector Aeroacoustics for Uniform Mean Flow: Acoustic Velocity and Vortical Velocity [PDF]
AIAA Journal, 2018 Acoustic and vortical disturbances in uniform mean flow bounded with solid surfaces are investigated in this paper.
Mao, Yijun +3 more
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Sensors, 2023 The integrated system with the strapdown inertial navigation system (SINS) and the global positioning system (GPS) is the most popular navigation mode. It has been used in many navigation fields.
Yukun Wang, Xiuli Ning, Xiang Xu
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Continuity equations and ODE flows with non-smooth velocity [PDF]
, 2014 In this paper we review many aspects of the well-posedness theory for the Cauchy problem for the continuity and transport equations and for the ordinary differential equation (ODE). In this framework, we deal with velocity fields that are not smooth, but
Crippa, Gianluca, Ambrosio, Luigi
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Measurement of properties of a dispersed phase in air-water multiphase flow using novel four-sensor probe and orthogonal high speed cameras [PDF]
Measurement of the volumetric flow rate of each of the flowing components in multiphase flow is required to be monitored in production logging applications.
Pradhan, Suman, Mishra, Rakesh
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Vector Current Measurement Using Doppler Scatterometry with Optimally Selected Observation Azimuths
Remote Sensing, 2021 The Doppler scatterometer is a new style of remote sensing tool that can provide current measurements over a wide swath for rapid global coverage. The existing current estimation method for Doppler scatterometry uses the maximum likelihood method to ...
Weifeng Sun +4 more
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Three-dimensional acoustic vector field model using Gaussian beam tracing [PDF]
JASA Express Letters, 2023 A three-dimensional acoustic vector field model was developed using Gaussian beam tracing. The field at any location is computed by coherently summing all contributing beams, where the beam equation of particle velocity depends only on beam width and ...
Yuchen Chen, Minghui Zhang, Lijia Gong
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Properties of the Acoustic Vector Field near the Underwater Planar Cavity Baffle and Its Application
Journal of Marine Science and Engineering, 2022 In order to apply the acoustic vector hydrophone on a ship, the properties of the acoustic vector field near the underwater planar cavity baffle are studied based on the Euler description and Lagrange description.
Hongyue Chen, Zhongrui Zhu, Desen Yang
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Velocities, Stresses and Vector Bundle Valued Chains [PDF]
Journal of Elasticity, 2011 A mathematical framework for the fundamental objects of continuum mechanics is presented. In the geometric setting of general differentiable manifolds, velocity fields over bodies, modeled as sections of a vector bundle W, are generalized using notions of homological integration theory such as flat chains and cochains.
Segev, Reuven, Falach, Lior
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