Results 321 to 330 of about 4,215,064 (363)

Development of a Multiphase Beryllium Equation of State and Physics-based Variations.

Journal of Physical Chemistry A, 2021
We construct a family of beryllium (Be) multiphase equation of state (EOS) models that consists of a baseline ("optimal") EOS and variations on the baseline to account for physics-based uncertainties. The Be baseline EOS is constructed to reproduce a set
Christine J Wu, P. C. Myint, J. Pask, C. Prisbrey, A. Correa, Phanish Suryanarayana, J. Varley   +6 more
semanticscholar   +1 more source

The intrinsic phenomena of cavitation and concentration in Riemann solutions for the isentropic two-phase model with the logarithmic equation of state

Journal of Mathematics and Physics, 2021
The Riemann solutions for a simplified two-phase flow model with the logarithmic equation of state are obtained in fully explicit forms for all four possible different structures. The intrinsic phenomena of cavitation and concentration are identified and
M. Sun
semanticscholar   +1 more source

EQUATIONS OF STATE AS CONSERVATION EQUATIONS

Chemical Engineering Communications, 1983
Equations of state are shown to be mathematically equivalent to conservation equations, when the distance-time plane is replaced by the pressure-temperature plane. The Clapeyron equation is consequently developed, as a “shock condition“, based on the discontinuity in molar volume between phases at equilibrium.
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Equations of State

2004
The equations of state appropriate to the interiors of most stars are simple in one major respect: they may be derived using the assumption that the radiation, gas, fluid, or even solid, is in a state of local thermodynamic equilibrium or LTE. By this we mean that at a particular position in the star complete thermodynamic equilibrium is as very nearly
Carl J. Hansen, Steven D. Kawaler, Virginia Trimble   +2 more
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Derivatives for the equations of state

2007
Derivation of partial derivatives for isothermal multi-component mixtures needed for development of universal models for multi-phase multi-component flows is presented. The equations of state and the derivative approximations as functions of temperature and pressure for the elementary mixture constituents are assumed to be known.
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The Equation of State

2014
This chapter introduces the equation of state, defines the mean molecular weight, discusses the validity of the perfect gas hypothesis, and presents several examples regarding stellar photospheres.
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Fundamental Equation and the Equations of State

2011
In Chap. 5, we noted that in combination the first and the second laws lead to an important relationship: the difference, dU, in the internal energy of two neighboring equilibrium states is linearly related to the corresponding difference, dS, in their entropy.
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Thermodynamic Properties and Equation of State for Solid and Liquid Copper

International journal of thermophysics, 2023
N. Kozyrev
semanticscholar   +1 more source

Equations of State

2001
The equation of state relates the pressure, temperature and volume of a system. Since the volume of a system is summed over those of the constituting phases, we will restrict ourselves in this chapter to phases with a fixed composition. We will begin with ideal gases which constitute a good starting point for real gases at low pressure and high ...
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A New Two-Constant Equation of State

, 1976
D. Peng, D. Robinson
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