Visco-elastic jets

<p>A viscoelastic jet is a projected stream (<a href="/facts/Jet_(fluid)/Ebx8zVKY">jet</a>) of a <a href="/facts/Viscoelasticity/pDhHgx2T">viscoelastic fluid</a> (a fluid that disobeys Newton's law of <a href="/facts/Viscosity/QLVfrdCz">viscosity</a>). A viscoelastic fluid returns to its original shape after the applied stress is released.
</p><p>Free surface continuous jets of viscoelastic fluids are relevant in engineering applications involving blood, paints, adhesives, and foodstuff as well as in industrial processes like fiber spinning, bottle filling, and oil drilling. In <a href="/facts/Process_engineering/tgNFNxwD">process engineering</a>, it is essential to understand the instabilities a jet undergoes due to changes in fluid parameters like <a href="/facts/Reynolds_number/4sdungsf">Reynolds number</a> or <a href="/facts/Deborah_number/551ugqmz">Deborah number</a>. With the advent of <a href="/facts/Microfluidics/UW3LnTdE">microfluidics</a>, an understanding of the jetting properties of non-Newtonian fluids becomes essential from micro- to macro-length scales, and from low to high Reynolds numbers.
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Visco-elastic jets open-in-new

Visco-elastic jets