Flow metrology & rheology

News

In Natural Gas Pipelines, NIST Goes with the Flow

April 19, 2013

On an ordinary day, the United States consumes about 70 billion cubic feet of natural gas – enough to fill a space a...

Microreactors: Small Scale Chemistry Could Lead to Big Improvements for Biodegradable Polymers

March 30, 2011

Using a small block of aluminum with a tiny groove carved in it, a team of researchers from the National Institute of...

Publications

Reference Correlation for the Viscosity of Carbon Dioxide

March 21, 2017

Author(s):

Arno R. Laesecke, Chris D. Muzny

A comprehensive database of experimental and computed data for the viscosity of carbon dioxide (CO2) was compiled and a new reference correlation was developed...

Jetting of a shear banding fluid in a rectangular duct

March 14, 2017

Author(s):

Paul Salipante, Charles A. Little, Steven D. Hudson

We report on a jetting flow instability of shear banding worm-like micelle (WLM) solutions in microfluidic channels with rectangular cross-sections over an...

Molecular Dynamics Simulation of Trimer Self-Assembly Under Shear

March 06, 2017

Author(s):

Raymond D. Mountain, Harold W. Hatch, Vincent K. Shen

The self-assembly of patchy trimer particles with one attractive bead and two repulsive beads is investigated with nonequilibrium molecular dynamics...

Measurement and Correlation of Densities and Dynamic Viscosities of Perfluoropolyether Oils

July 22, 2016

Author(s):

Tara J. Fortin, Arno R. Laesecke, Jason A. Widegren

The densities and dynamic viscosities of five different polydisperse perfluoropolyethers (PFPE) were measured at atmospheric pressure over the combined...

Projects & Programs

COMPLETED: Polymer Formulations

Our goal is to develop combinatorial and high-throughput measurement approaches for rapid characterization of the structure and phase behavior of...

Gas properties for flow metering

Flow meters that rely on measuring the pressure drop across a laminar flow element can be accurately calibrated using a benign surrogate gas (such as helium or...

The NIST Chemistry Webbook

The NIST Chemistry WebBook is a site on the Internet ( http://webbook.nist.gov/ ) that provides convenient access to a variety of physical and chemical...

Modeling Dispersion Rheology for Non-Spherical Particles

The flow of polymer composites via injection molding, spraying or spreading on surfaces is crucial to polymer composite manufacturing. For single-phase liquids...

Flow metrology & rheology

News

In Natural Gas Pipelines, NIST Goes with the Flow

Microreactors: Small Scale Chemistry Could Lead to Big Improvements for Biodegradable Polymers

Publications

Reference Correlation for the Viscosity of Carbon Dioxide

Jetting of a shear banding fluid in a rectangular duct

Molecular Dynamics Simulation of Trimer Self-Assembly Under Shear

Measurement and Correlation of Densities and Dynamic Viscosities of Perfluoropolyether Oils

Projects & Programs

COMPLETED: Polymer Formulations

Gas properties for flow metering

The NIST Chemistry Webbook

Modeling Dispersion Rheology for Non-Spherical Particles

Tools & Instruments

Gravimetric Standard for Liquid Micro-Flow

Liquid Flow Standards

Liquid Density

Wind Tunnel