6,309 research outputs found
A thermo-mechanically consistent Burnett regime continuum flow equation without Chapman-Enskog expansion
No full textChapman-Enskog expansion is the orthodox approach to derive continuum flow models from Boltzmann’s kinetic equation for dilute gases. Beyond the Navier-Stokes-Fourier order, these models known as Burnett hydrodynamic-regime equations violate a number of fundamental mechanical and thermodynamic principles in their original forms. This has generated a widely investigated problem in the kinetic theory of gases. In this short article, we derive a Burnett hydrodynamic-regime continuum model that is systematically consistent with all known mechanical and thermodynamic principles without using any series’ expansion. Close comparison with the conventional Burnett hydrodynamic set of equations is considered and their linear stabilities around an equilibrium point under small perturbations are presented
Burnett, T A, 421069
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/374888Surname: BURNETT
Given Name(s) or Initials: T A
Military Service Number or Last Known Location: 421069
Missing, Wounded and Prisoner of War Enquiry Card Index Number: 54480186269
Item: [2016.0049.07196] "Burnett, T A, 421069
Harvest the Author Dashboard for Faculty Reports
No full textPresentation by Georgia Southern faculty member Beth Burnett.
Demonstration of how to collect data from the Digital Commons Author Dashboard for faculty use in annual evaluations or promotion & tenure narratives
Business Maine. Column from Lee Burnett, a Maine Times reporter, describing t
No full textBusiness Maine. Column from Lee Burnett, a Maine Times reporter, describing the paper\u27s demise and how much he misses it
Author Metrics and Impact
No full textFaculty workshop by Georgia Southern faculty member Beth Burnett
Comparing macroscopic continuum models for rarefied gas dynamics : a new test method
No full textWe propose a new test method for investigating which macroscopic continuum models, among the many existing models, give the best description of rarefied gas flows over a range of Knudsen numbers. The merits of our method are: no boundary conditions for the continuum models are needed, no coupled governing equations are solved, while the Knudsen layer is still considered. This distinguishes our proposed test method from other existing techniques (such as stability analysis in time and space, computations of sound speed and dispersion, and the shock wave structure problem). Our method relies on accurate, essentially noise-free, solutions of the basic microscopic kinetic equation, e.g. the Boltzmann equation or a kinetic model equation; in this paper, the BGK model and the ES-BGK model equations are considered. Our method is applied to test whether one-dimensional stationary Couette flow is accurately described by the following macroscopic transport models: the Navier-Stokes-Fourier equations, Burnett equations, Grad's 13 moment equations, and the regularized 13 moment equations (two types: the original, and that based on an order of magnitude approach). The gas molecular model is Maxwellian. For Knudsen numbers in the transition-continuum regime (Kn less-than-or-equals, slant 0.1), we find that the two types of regularized 13 moment equations give similar results to each other, which are better than Grad's original 13 moment equations, which, in turn, give better results than the Burnett equations. The Navier-Stokes-Fourier equations give the worst results. This is as expected, considering the presumed accuracy of these models. For cases of higher Knudsen numbers, i.e. Kn > 0.1, all macroscopic continuum equations tested fail to describe the flows accurately. We also show that the above conclusions from our tests are general, and independent of the kinetic model used
Generalized Burnett Hydrodynamics
No full textEquations of hydrodynamics (derived from the Boltzmann equation) beyond the Navier-Stokes level are studied by a method proposed earlier by the author. The main question we consider is the following: What is the most natural replacement for classical (ill-posed) Burnett equations?It is shown that, in some sense, it is a two-parameter set of Generalized Burnett Equations (GBEs) derived in this paper. Some equations of this class are even simpler than original Burnett equations. The region of stability in the space of parameters and other properties of GBEs are discussed.</p
EMMEL: a framework for historical manuscript analysis and presentation
No full textIn this paper, a generic framework for historical manuscript image and data processing, visualisation and analysis is introduced with a focus on the modelling of manuscript metadata underpinning the interaction. The goal of such a framework is to capture the requirements from three types of activities involving historical manuscripts: presentation, management and analysis. In addition to an overall text-based description of an historical manuscript, a central requirement of such a framework is to associate rich media information (e.g. video, flash component, etc.) to the manuscript or a specific region of the manuscript. A second requirement is to enable interchange of the manuscript data as well as the attached information between users. As a result of an extensive analysis of requirements collected across a wide range of target user groups, an XML-based metadata language derived from a relational database model is proposed to form an historical document data model, and a prototype system is developed to demonstrate some of the advanced functionalities enabled by this data model. Thus, the proposed framework provides an important tool in promoting access to historical documents on a wide and diverse basis, embracing the fundamental principles of universal access to a shared cultural heritage
Residence of Mr. J. T. Burnett
No full textPhotograph of the home of J.T. Burnett, owner of a funeral home in San Antonio
Richard T. Burnett House
No full textMediterranean style house built for Richard Tate Burnett (1901-1992), assistant superintendent of Standard Oil Co. of New Jersey and owner of Burnett’s Service Stations; and wife, Virginia S. Perkins (1905-1979). From 1943 to 1961 owned by Herman D. Kalfan (1898-1984), born in Russia; and wife, Irene Kalfin (1905- ), native of Baltimore, MD. They were the proprietors of The Children’s Shop
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