NIST Viscoelastic flow instabilities and turbulence
This project studies how polymers affect the shift to turbulent flow by measuring flow, pressure, and stress using imaging and different channel shapes.
This grant is no longer accepting proposals
NRC Research Associateship Programs has archived this opportunity.
Funder: NRC Research Associateship Programs
Due Dates: February 1, 2025 | May 1, 2025 | August 1, 2025 | November 1, 2025
Funding Amounts: $82,764 stipend per year + $3,000 travel allowance; typical appointment duration 2 years.
Summary: Postdoctoral fellowship to study viscoelastic flow instabilities and turbulence at NIST using advanced imaging and flow measurement techniques.
Key Information: Open to U.S. citizens with a doctoral degree earned within the last 5 years; requires contacting a NIST research adviser prior to application.
Description
This fellowship opportunity supports research at the National Institute of Standards and Technology (NIST) focused on understanding how small quantities of dissolved polymers impart elasticity to fluids and influence the transition to turbulent flow. The research involves measuring flow and pressure macroscopically, analyzing birefringence, and tracking particles with high-speed imaging to obtain local flow and stress data. The project aims to characterize features associated with the transition to turbulence, such as wave propagation of flow disturbances, while manipulating the relative effects of elasticity and inertia through channel geometry variations.
Key research areas include turbulence, flow instability, viscoelastic flow, microfluidics, rheology, and polymer solutions.
