Wavenumber response of the shear probe

From Atomix


Short definition of Wavenumber response of the shear probe
Spatial averaging effect of the tip of a shear probe

This is the common definition for Wavenumber response of the shear probe, but other definitions maybe discussed within the wiki.

{{#default_form:DefineConcept}} {{#arraymap:|,|x||}}


The probe-response correction depends on the dimensions of the shear probe. For a commonly used shear probe the spectrum is corrected for the spatial averaging of the shear probe by multiplying it by the factor 1+(kk0)2 where k0 = 50 cpm and k is the wavenumber expressed in units of cpm [1] The correction reaches a factor of 10 at a wavenumber of 150 cpm, and it is not recommended to use spectral data beyond this wavenumber unless your shear probe is small enough to have a cutoff wavenumber k0 that is larger than 50 cpm.

References

  1. {{#arraymap:P. Macoun and R. Lueck|,|x|x|, |and}}. 2004. Modeling the spatial response of the airfoil shear probe using different sized probes. J. Atmos. Oceanic Technol.. doi:10.1175/1520-0426(2004)021



return to Flow chart for shear probes