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QFL layer and clarification

QFL layer and clarification

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Started by Pavelski in Ski Tuning Course

J2Ski

Pavelski posted Dec-2006

Several persons asked me to clarify the presentation on QFL.

This microscopic layer is not created by "skating on ice or skiing on snow"!

This microscopic layer is present all over the ski runs BUT in varied states due to; varied temperature on slope, varied sun exposure, varied wind action.

This zone is very much like the "sheer" zone in snow which causes avalanches due to a fault between one type of snow and another type of snow. However the QFL is at microscopic level

Here is an analogy of QFL that you will not forget. Think a school dance at the elementary school. The girls all against one wall of the dance room, while the boys are are at the other wall. Moving about but not "bonding" ( that will take some years and more chemistry). Between the two groups is a zone which is "fluid"!
The same situation occurs at the atom level in the QFL. The top atoms are vibrating horizontally and NOT mixing with the other atoms. They are the boy atoms. Highly agitated and changing the state of the upper part of this layer into a liquid, solid and gas! What state depends on; temperature, humidity, sun light etc...
It is an unstable layer thus causing sliding!!!!

Hope this clarifies the concept!