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Keywords: entropy
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Journal Articles
Article Type: Research Papers
J. Appl. Mech. September 2010, 77(5): 051401.
Published Online: May 17, 2010
... solver based on the Roe–Pike method was modified for the two-phase flows to compute fully nonlinear wave interactions and to directly provide upwinding properties in the scheme. An entropy fix based on Harten–Heyman method was used with van Leer flux limiter for total variation diminishing. The three...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. September 2007, 74(5): 923–926.
Published Online: December 28, 2006
...F. D. Fischer; J. Svoboda The Principle of Maximum Dissipation Rate (PMD) can be exploited to derive homogeneous kinetic rate laws for the internal variables. A “normality structure” expressing the rates of the internal variables as normal to convex functions (entropy production rate, dissipation...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. May 2007, 74(3): 421–426.
Published Online: March 31, 2006
... to the phenomenon and extracting estimates of the expected end to end separation distance, the entropy and other statistical features of behavior. By means of the variational principle, the problem is recast into a form that admits a direct, noniterative analysis of conformations within the context of the self...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. January 2006, 73(1): 60–65.
Published Online: April 27, 2005
... of entropy generation due to fluid friction and heat transfer with respect to the considered parameters. Results show that the minimization of the rate of entropy generation depends on the porous layer thickness, its permeability, the inlet temperature difference between the two fluids, and the effective...
Journal Articles
Article Type: Article
J. Appl. Mech. March 2005, 72(2): 299–300.
Published Online: March 15, 2005
...Stephen E. Bechtel; Francis J. Rooney; M. Gregory Forest In this note we provide proofs of the following statements for a compressible Newtonian fluid: (i) internal energy being a convex function of entropy and specific volume is equivalent to nonnegativity of both specific heat at constant volume...
Journal Articles
Article Type: Article
J. Appl. Mech. May 2005, 72(3): 322–329.
Published Online: July 21, 2004
... ( σ , ϑ , ξ ) Following the second law of thermodynamics, the entropy production rate should be always non-negative, 8 σ = 1 ϑ V f α ξ ̇ α ⩾ 0 In the normality structure, a key assumption is that the kinetic rate...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. January 2003, 70(1): 27–31.
Published Online: January 23, 2003
...M. Hafez; J. Housman For two-dimensional flows, the conservation of mass and the definition of vorticity comprise a generalized Cauchy-Riemann system for the velocity components assuming the vorticity is given. If the flow is compressible, the density is a function of the speed and the entropy...
Journal Articles
Article Type: Technical Papers
J. Appl. Mech. September 2002, 69(5): 570–579.
Published Online: August 16, 2002
... is derived from the entropy change associated with the deformation of constituent macromolecules and the strain energy change associated with the deformation of a representative orthotropic unit cell. The ability of this model to predict nonlinear, orthotropic elastic behavior is examined by comparing...
Journal Articles
Article Type: Brief Notes
J. Appl. Mech. September 2001, 68(5): 816–817.
Published Online: May 1, 2001
...; final revision, May 1, 2001. Associate Editor: D. A. Siginer. 07 September 2000 01 May 2001 thermoelasticity second sound Fourier analysis heat conduction entropy The classical Fourier law of heat conduction leads to instantaneous propagation of heat to infinitely remote...
Journal Articles
Article Type: Brief Notes
J. Appl. Mech. December 2000, 67(4): 829–830.
Published Online: August 5, 1997
... supported by the National Science Foundation. In the special case of a thermoelastic material one has ψ=ψ^( F ,θ) and the stress and entropy are given by the constitutive relationships σ = ρ ψ ^ F , η = − ψ ^ θ . Equivalently one has ε=ε^( F ,η) with the stress...