Detailed atmospheric ice accretion surface measurement using micro‐computed tomography
2020
Surfaces exposed to atmospheric cold temperature and humid environments
are prone to ice accretion. Airplanes, electrical power transmission cables, and
wind turbines are typical examples for which icing has to be considered. The
measurement of the resulting ice shapes is a challenging process. While macroscopic
characteristics of the ice geometry can be observed using photography
and optical scanning techniques, microscopic measurements are difficult to
conduct because grooved surface partially occludes the geometry of chasms.
To overcome this optical inaccessibility, we propose a method to carry out
detailed high-resolution measurements of the accretion surface with microcomputed
tomography. This approach provides a unique visualization of the
empty spaces in the feather region. The information obtained by this technique
can improve the understanding of ice accretion physics and its computational
modeling.
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