Schlieren measurement of axisymmetric internal wave amplitudes
نویسنده
چکیده
‘Synthetic schlieren’’, which has been used to measure the amplitude of two-dimensional internal wave beams generated from an oscillating cylinder, is adapted to analyze axisymmetric internal waves generated by an oscillating sphere. This nonintrusive technique uses elementary inverse tomographic methods to measure the amplitude of the conical-structured wave beams everywhere in space and time. We compare the results with in situ probe measurements, and we examine the structure of the wave beams generated by a sphere oscillating at different amplitudes.
منابع مشابه
Schlieren Visualisation and Measurement of Axisymmetric Disturbances
Synthetic schlieren is a new technique that allows one easily and inexpensively to visualise density variations, such as those caused by internal waves propagating in a density stratified fluid. In the special case of two-dimensional internal waves (for example, those created by an oscillating cylinder), synthetic schlieren allows one to measure nonintrusively the wave amplitudes everywhere in ...
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