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Abstract #2307

Gas Flow Measurement using 19 F-MRI during Constant and Oscillating Flow

Janet Friedrich 1 , Daniel Feldmann 2 , Maxim Terekhov 1 , Claus Wagner 2 , and Laura Maria Schreiber 1

1 Department of Radiology, Johannes Gutenberg University Medical Center, Mainz, Germany, 2 Institute of Aerodynamics and Flow Technology, German Aerospace Center, Gttingen, Germany

The aim of the current study was to develop a method that enables us to measure axial velocity profiles during high frequency oscillated ventilation using 19F-MRI. This work includes constant flow measurements at Reynolds numbers Re = {10 254, 15744, 21 306} and direct numerical simulations (DNS) solving the discrete Navier-Stokes equations using a finite-volume method. Measurement and simulation results were in good agreement. Flow measurements during HFOV of 4 Hz were successfully performed and show as well a good agreement with theoretical data.

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