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Planar Doppler Velocimetry (PDV), also referred to as Doppler Global Velocimetry (DGV), determines flow velocity across a plane by measuring the Doppler shift in frequency of light scattered by particles contained in the flow. The Doppler shift, Δfd, is related to the fluid velocity.
The relatively small frequency shift (order 1 GHz) is discriminated using an atomic or molecular vapor filter. This approach is conceptually similar to what is now known as Filtered Rayleigh Scattering (Miles and Lempert, 1990).
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PlanarDopplerVelocimetry (PDV), also referred to as Doppler Global Velocimetry (DGV), determines flow velocity across a plane by measuring the Doppler...
Programme Photon Dopplervelocimetry, a technique for measuring the velocity in dynamic shock physics experiments PlanarDopplervelocimetry, a technique...
measurement is made in a collinear direction with the flow. In planarDopplervelocimetry (optical flow meter measurement), ToF measurements are made perpendicular...
being studied. Other techniques used to measure flows are laser Dopplervelocimetry and hot-wire anemometry. The main difference between PIV and those...
case of negligible buoyancy and constant fluid properties. MIR uses DopplerVelocimetry to produce a three-dimensional image of a model inside the loop....
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