Undercompressive Shocks Proposed to Explain 'Tears of Wine' Phenomenon
upstart writes in with an IRC submission for Bytram:
Undercompressive shocks proposed to explain 'tears of wine' phenomenon:
A small team of researchers at the University of California has developed a theory to explain the shape of tears of wine. They have written a paper describing their theory and uploaded it to the arXiv preprint server-it has been accepted for publication in the journal Physical Review Fluids.
Tears of wine, in which some of the wine in a glass is pulled up the sides and then drains back down into the remaining wine, are a common occurrence. The resulting patterns that encircle the glass bear a resemblance to human tears. Scientists have been pondering the effect for over a century, and their research has partially explained the process, but there was one remaining mystery-why did the liquid form tear -shaped patterns? In this new effort, the researchers have proposed what they believe is the answer.
Theory for undercompressive shocks in tears of wine, Physical Review Fluids (2020) journals.aps.org/prfluids/acce ... c39536c10099b7209059 , On Arxiv: arxiv.org/abs/1909.09898
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