No, the design of the ScrutonWell can be used in gaseous and liquid media. The WIKA -ScrutonWell design is based on the ASME paper “Helical strakes in suppressing vortex-induced vibrations” (ASME report 11/2011 vol. 113.). The tests for this report were performed in a water channel. The same design rules are also in use to design helical strakes in air, for example on industrial chimneys in accordance with DIN EN 1993-3-2. Samples for technical applications of the ScrutonWell design are: • Industrial chimney’s (air) • Car antenna’s (air) • Offshore platforms (water) • Offshore risers (water) • Cable of rope bridges (air)