The design of the ScrutonWell strakes to suppress VIV (vortex-induced vibration) is used in many technical applications such as: • Chimneys • Antennas • Offshore platforms • Offshore risers • Cable of rope bridges Additionally, scientific evidence is not possible for the application as a wake frequency calculation does not exist. ASME PTC 19.3 TW-2010 is based on a formula of velocity / thermowell diameter / Strouhal number to determine the vortex shedding frequency. With the strake design it does not have a clearly defined Kármán Vortex street. WIKA can provide a calculation for the static loading of the thermowell (safety bending and pressure) to ensure it will be suitable for the process, but the VIV is reduced using the design by ASME (greater than 90% reduction) and no dynamic calculation is performed.