Mapping flow distortion on oceanographic platforms using computational fluid dynamics
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O'Sullivan, N. Landwehr, S.; Ward, B. (2013). Mapping flow distortion on oceanographic platforms using computational fluid dynamics. Ocean Science 9 (5), 855-866
Wind speed measurements over the ocean on ships or buoys are affected by flow distortion from the platform and by the anemometer itself. This can lead to errors in direct measurements and the derived parametrisations. Here we computational fluid dynamics (CFD) to simulate the errors in wind speed measurements caused by flow distortion on the RV Celtic Explorer. Numerical measurements were obtained from the finite-volume CFD code OpenFOAM, which was used to simulate the velocity fields. This was done over a range of orientations in the test domain from -60 to +60 degrees in increments of 10 degrees. The simulation was also set up for a range of velocities, ranging from 5 to 25 m s(-1) in increments of 0.5 m s(-1). The numerical analysis showed close agreement to experimental measurements.