Author
Gary R. Hardin
Other affiliations: University of Colorado Boulder
Bio: Gary R. Hardin is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Rayleigh number & Buoyancy. The author has an hindex of 7, co-authored 9 publications receiving 311 citations. Previous affiliations of Gary R. Hardin include University of Colorado Boulder.
Papers
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National Institute of Standards and Technology1, University of North Texas2, University of Notre Dame3, Rio Tinto Group4, Vanderbilt University5, Delft University of Technology6, Schlumberger7, Brigham Young University8, Hiroshima University9, University of Toronto10, University of Western Australia11, Fluor Corporation12, Virginia Commonwealth University13, Blaise Pascal University14, University of Salamanca15, University of Rostock16, Imperial College London17, University of Alabama at Birmingham18, Royal Military College of Canada19, Xi'an Jiaotong University20
TL;DR: A 10-year cooperative effort between the U.S. National Institute of Standards and Technology (NIST) and five major journals in the field of thermophysical and thermochemical properties to improve the quality of published reports of experimental data is described in this article.
Abstract: This article describes a 10-year cooperative effort between the U.S. National Institute of Standards and Technology (NIST) and five major journals in the field of thermophysical and thermochemical properties to improve the quality of published reports of experimental data. The journals are Journal of Chemical and Engineering Data, The Journal of Chemical Thermodynamics, Fluid Phase Equilibria, Thermochimica Acta, and International Journal of Thermophysics. The history of this unique cooperation is outlined, together with an overview of software tools and procedures that have been developed and implemented to aid authors, editors, and reviewers at all stages of the publication process, including experiment
216 citations
TL;DR: In this article, buoyancy-driven instability of a monocomponent or binary fluid completely contained in a vertical circular cylinder is investigated, including the influence of the Soret effect for the binary mixture.
Abstract: The buoyancy-driven instability of a monocomponent or binary fluid completely contained in a vertical circular cylinder is investigated, including the influence of the Soret effect for the binary mixture. The Boussinesq approximation is used, and the resulting linear stability problem is solved using a Galerkin technique. The analysis considers fluid mixtures ranging from gases to liquid metals. The flow structure is found to depend strongly on both the cylinder aspect ratio and the magnitude of the Soret effect. The predicted stability limits are shown to agree closely with experimental observations.
32 citations
TL;DR: It is believed that the prolific growth of scientific data in numerous and diverse fields outside thermodynamics, together with the demonstrated effectiveness and versatility of the process described in this article, will foster development of such processes in other scientific fields.
Abstract: Thermodynamic data are a key resource in the search for new relationships between properties of chemical systems that constitutes the basis of the scientific discovery process. In addition, thermodynamic information is critical for development and improvement of all chemical process technologies. Historically, peer-reviewed journals are the major source of this information obtained by experimental measurement or prediction. Technological advances in measurement science have propelled enormous growth in the scale of published thermodynamic data (almost doubling every 10 years). This expansion has created new challenges in data validation at all stages of the data delivery process. Despite the peer-review process, problems in data validation have led, in many instances, to publication of data that are grossly erroneous and, at times, inconsistent with the fundamental laws of nature. This article describes a new global data communication process in thermodynamics and its impact in addressing these challenges...
23 citations
TL;DR: In this article, the buoyancy-driven instability of a monocomponent or binary fluid that is completely contained in a vertical circular cylinder is investigated, including the influence of the Soret effect for the binary mixture.
Abstract: The buoyancy-driven instability of a monocomponent or binary fluid that is completely contained in a vertical circular cylinder is investigated, including the influence of the Soret effect for the binary mixture. The Boussinesq approximation is used, and weakly-non-linear solutions are generated via Galerkin's technique using an expansion in the eigensolutions of the associated linear stability problem. Various types of fluid mixtures and cylindrical domains are considered. Flow structure and associated heat transfer are computed and experimental observations are cited when possible.
22 citations
TL;DR: An object-oriented code in C++ employing the finite element method for the solution of transportphenomena problems solves the continuum equations of fluid dynamics, heat transfer and mass transfer with chemical reactions.
19 citations
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TL;DR: In this article, the primary instability of axisymmetric steady thermocapillary flow in a cylindrical liquid bridge with non-deformable free surface is calculated by a mixed Chebychev finite difference method.
Abstract: The primary instability of axisymmetric steady thermocapillary flow in a cylindrical liquid bridge with non‐deformable free surface is calculated by a mixed Chebychev‐finite difference method. For unit aspect ratio the most dangerous mode has an azimuthal wavenumber m=2. The physical instability mechanisms are studied by analyzing the linear energy balance of the neutral mode. If the Prandtl number is small (Pr≪1), the bifurcation is stationary. The associated neutral mode is amplified in the shear layer close to the free surface. For large Prandtl number (Pr=4), the basic state becomes linearly unstable to a pair of hydrothermal waves propagating nearly azimuthally. Both mechanisms are compared with those previously proposed in the literature.
300 citations
National Institute of Standards and Technology1, University of North Texas2, University of Notre Dame3, Rio Tinto Group4, Vanderbilt University5, Delft University of Technology6, Schlumberger7, Brigham Young University8, Hiroshima University9, University of Toronto10, University of Western Australia11, Fluor Corporation12, Virginia Commonwealth University13, Blaise Pascal University14, University of Salamanca15, University of Rostock16, Imperial College London17, University of Alabama at Birmingham18, Royal Military College of Canada19, Xi'an Jiaotong University20
TL;DR: A 10-year cooperative effort between the U.S. National Institute of Standards and Technology (NIST) and five major journals in the field of thermophysical and thermochemical properties to improve the quality of published reports of experimental data is described in this article.
Abstract: This article describes a 10-year cooperative effort between the U.S. National Institute of Standards and Technology (NIST) and five major journals in the field of thermophysical and thermochemical properties to improve the quality of published reports of experimental data. The journals are Journal of Chemical and Engineering Data, The Journal of Chemical Thermodynamics, Fluid Phase Equilibria, Thermochimica Acta, and International Journal of Thermophysics. The history of this unique cooperation is outlined, together with an overview of software tools and procedures that have been developed and implemented to aid authors, editors, and reviewers at all stages of the publication process, including experiment
216 citations
TL;DR: A perspective on the successful commercialisation of IL-based processes, to date, and the advantages and disadvantages associated with the use of ILs in industry are provided.
Abstract: Since their conception, ionic liquids (ILs) have been investigated for an extensive range of applications including in solvent chemistry, catalysis, and electrochemistry. This is due to their designation as designer solvents, whereby the physiochemical properties of an IL can be tuned for specific applications. This has led to significant research activity both by academia and industry from the 1990s, accelerating research in many fields and leading to the filing of numerous patents. However, while ILs have received great interest in the patent literature, only a limited number of processes are known to have been commercialised. This review aims to provide a perspective on the successful commercialisation of IL-based processes, to date, and the advantages and disadvantages associated with the use of ILs in industry.
197 citations
TL;DR: In this paper, the authors describe the deposition of thin inorganic films from precursors in the gas phase onto a solid substrate, which is a key element in a wide range of technological applications, including the fabrication of microelectronic circuits, optical and magnetic recording media, optical devices, and high performance culling and grinding tools.
Abstract: The deposition of thin inorganic films from precursors in the gas phase onto a solid substrate is a key element in a wide range of technological applications, including the fabrication of microelectronic circuits, optical and magnetic recording media, optical devices, and high-performance culling and grinding tools. The deposited films range in thickness from a few nanometers, as in the active layer of a quantum-well optical device, to tens of microns for wear-resistant coatings. The thin films must be pro duced with controllable properties (e.g. purity, composition, thickness, adhesion, crystalline structure, and surface morphology). In addition, the deposition cannot have a significant impact on the microstructures already existing in the substrate. The tolerance limits on the properties of the films vary with the application, but stringent demands are characteristic in electronic and optical materials processing. In such applications, the requirements increase with the level of integration, the decrease in device
178 citations
TL;DR: In this paper, a review of a representative number of papers published in recent years that include the correlation of experimental liquid-liquid equilibrium (LLE) data has been carried out, after detecting serious inconsistencies in some of the parameters recently published.
145 citations