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RAP opportunity at National Institute of Standards and Technology     NIST

Viscoelastic flow instabilities and turbulence


Material Measurement Laboratory, Materials Science and Engineering Division

opportunity location
50.64.21.C0400 Gaithersburg, MD

NIST only participates in the February and August reviews.


name email phone
Steven David Hudson 240.688.7883
Paul Francis Salipante 301-975-2820


Small quantities of dissolved polymers impart elasticity to a fluid and are a crucial means to control the transition to turbulent flow, in various applications that range widely across Reynolds number. We measure flow and pressure macroscopically and analyze birefringence and particle tracking with high-speed imaging to obtain local flow and stress. We seek to measure features associated with the transition to turbulence, including wave propagation of flow disturbance, while adjusting the relative importance of elasticity and inertia by channel geometry.

key words
Turbulence; Flow instability; Viscoelastic flow; Microfluidics; Rheology; Polymer solutions;


Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants


Base Stipend Travel Allotment Supplementation
$82,764.00 $3,000.00
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