The value of the viscosity of liquid iron, abundant in Earth’s outer core, is key in the prediction of the magnetic field of rocky planets 4, 5.
For instance, the viscosity of a solvent crucially affects the dynamics of solutes and the reactions rates, of fundamental importance in the study of biological processes and chemical reactions 1, 2, 3. As such, it plays a fundamental role in various fields of science and technology, such as, e.g., chemical and mechanical engineering or earth and planetary sciences, to name but a few. Shear viscosity is one of the most important transport properties governing the macroscopic flow of liquids. Once the error resulting from the imperfect prediction of the melting line is offset by referring the simulated temperature to the theoretical melting one, our SCAN predictions of the shear viscosity of water are in very good agreement with experiments. Then, we train a second NNP to a dataset generated from the Strongly Constrained and Appropriately Normed (SCAN) functional. This approach is first validated against AIMD results, obtained by using the Perdew–Burke–Ernzerhof (PBE) exchange-correlation functional and paying careful attention to crucial, yet often overlooked, aspects of the statistical data analysis. In order to cope with the long simulation times necessary to achieve an acceptable statistical accuracy, our ab initio approach is enhanced with deep-neural-network potentials (NNP). Send us feedback.We report on an extensive study of the viscosity of liquid water at near-ambient conditions, performed within the Green-Kubo theory of linear response and equilibrium ab initio molecular dynamics (AIMD), based on density-functional theory (DFT).
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'viscosity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Jennifer Ouellette, Ars Technica, 19 Apr. Michael Daignault, USA TODAY, 28 July 2022 The rheometer twists the fluid between parallel disks in order to measure its viscosity. Peter Krouse, cleveland, 7 June 2022 However, is reduced viscosity important when rehydrating after exercise?ĭr. Michael Daignault, USA TODAY, 28 July 2022 The soybean oil aids in mixing the compound that is extruded to become tire tread and was found to provide a greater reduction in viscosity, Woloszynek said, which enables Goodyear to use less of it in the process.
2022 The hypothesis is that dehydration increases blood viscosity or thickness.ĭr. 2022 The synergistic blend of ingredients work to support synovial fluid viscosity as well as normal cartilage flexibility. 2022 Check the viscosity of the sauce and swirl in more slurry if needed.Ĭaron Golden, San Diego Union-Tribune, 7 Sep. 2022 Another, called Ginish, lists glycerol as an ingredient, which David suspects lends it its viscosity, akin to that of gin-an impressive feat. Recent Examples on the Web Its low viscosity provides perfect physical contact between the heat sink and the integrated heat spreader.
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