Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2021 Aug:294:102472.
doi: 10.1016/j.cis.2021.102472. Epub 2021 Jun 26.

Advances and challenges in the high-pressure rheology of complex fluids

Amit Ahuja  1 , Reginald Lee  2 , Yogesh M Joshi  3
Affiliations
Review

Advances and challenges in the high-pressure rheology of complex fluids

Amit Ahuja et al. Adv Colloid Interface Sci. 2021 Aug.

Abstract

Complex fluids and soft materials are ubiquitous in nature and industry. In industrial processes, these materials often get exposed to high hydrostatic pressures. Some examples include polymer melts, crude oils, gas hydrates, food systems, foams, motor oils, lubricants, etc. In spite of the relevance and utilization of hydrostatic pressure in many industrial applications, the role of pressure on the rheological properties has not been examined extensively in the literature. We review the high-pressure rheometric systems and present advantages and drawbacks of various kinds of rheometers such as capillary rheometer, sliding plate rheometer, falling ball viscometer, and rotational rheometer. By outlining the design complexities, precision, low-torque resolution limits and the inherent error sources of each type are critically evaluated. Furthermore, the high-pressure rheology data, chosen to cover a broad range of pressures and material class ranging from simple Newtonian fluids (incompressible), complex non-Newtonian fluids and compressible fluids featuring various key applications from different industries, are reviewed. The literature suggests, while effect of pressure on the rheological behavior is vital for many applications, compared to the effects of temperature on the rheological behavior, knowledge of the effect of pressure is still in its infancy.

Keywords: Capillary rheometers; Falling ball viscometers; High-pressure rheometry; Pressure coefficient; Viscoelastic colloidal dispersions.

PubMed Disclaimer

Similar articles

See all similar articles

LinkOut - more resources