Results 221 to 230 of about 4,635 (267)
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International Journal of Modern Physics A, 2005
We propose a model for random forces in a turbulent incompressible fluid by balancing the energy gain from fluctuations against dissipation by viscosity. This leads to a more singular covariance distribution for the random forces than is ordinarily allowed. We then propose regularization of the fluid system by matrix models. A formula for entropy of a
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We propose a model for random forces in a turbulent incompressible fluid by balancing the energy gain from fluctuations against dissipation by viscosity. This leads to a more singular covariance distribution for the random forces than is ordinarily allowed. We then propose regularization of the fluid system by matrix models. A formula for entropy of a
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Multimodels for Incompressible Flows
Journal of Mathematical Fluid Mechanics, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
L. Fatone +2 more
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Incompressible pairwise incompressible surfaces in link complements
Acta Mathematica Scientia, 2011Abstract The central subject of studying in this paper is incompressible pairwise incompressible surfaces in link complements. Let L be a non-split prime link and let F be an incompressible pairwise incompressible surface in S3 – L. We discuss the properties that the surface F intersects with 2-spheres in S3 – L.
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New Applications of the Incompressibility Method
The Computer Journal, 1999Summary: The incompressibility method is an elementary yet powerful proof technique. It has been used successfully in many areas. To further demonstrate its power and elegance we exhibit new simple proofs using the incompressibility method.
Tao Jiang 0001 +2 more
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2014
Abstract This chapter starts by formulating the Euler equations and the boundary condition for inviscid flow, namely the impermeability condition on a rigid-body surface. The Bernoulli integral for incompressible flows is derived, as is the Cauchy–Lagrange integral, and Kelvin’s Circulation Theorem is proved.
Ruban, Anatoly I. +1 more
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Abstract This chapter starts by formulating the Euler equations and the boundary condition for inviscid flow, namely the impermeability condition on a rigid-body surface. The Bernoulli integral for incompressible flows is derived, as is the Cauchy–Lagrange integral, and Kelvin’s Circulation Theorem is proved.
Ruban, Anatoly I. +1 more
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Ventile, incompressible cushions
Applied Ergonomics, 1972The idea and initial trials of dry fluid cushioning are described. Better body support, comfort and ventility (ventilation permeability), are among the advantages expected to result from this development. Some design details and possible applications are discussed.
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On a variational theorem for incompressible and nearly-incompressible orthotropic elasticity
International Journal of Solids and Structures, 1968Abstract A mixed variational theorem for linear orthotropic thermoelastic solids is presented. The mechanical state variables are taken to be the displacement vector and a scalar stress variable. The Euler equations of the variational principle are the displacement equations of equilibrium and a condition relating the stress variable to strain and ...
Taylor, R. L. +2 more
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On the perturbed Lagrangian formulation for nearly incompressible and incompressible hyperelasticity
Computer Methods in Applied Mechanics and Engineering, 1997zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, J. S. +3 more
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Incompressibility in Dynamic Relaxation
Journal of Applied Mechanics, 1987A method is described for enforcing the incompressibility constraint in large-deformation solid mechanics computations using dynamic relaxation. The method is well-suited to explicit time-integration schemes because it does not require the solution of a system of linear equations.
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On the Incompressibility of Monotone DNFs
Theory of Computing Systems, 2005We prove optimal lower bounds for multilinear circuits and for monotone circuits with bounded depth. These lower bounds state that, in order to compute certain functions, these circuits need exactly as many OR gates as the respective DNFs. The proofs exploit a property of the functions that is based solely on prime implicant structure.
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