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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