نتایج جستجو برای: polar fluid
تعداد نتایج: 264446 فیلتر نتایج به سال:
We present Monte Carlo simulation results for the dielectric constant of the polar hard dumb-bell fluid. The Ewald sum technique is used to take account of the long range nature of the electrostatic interactions. The results for the dielectric constant are found to be sensitive to the choice of the dielectric constant of the continuum which surrounds the simulation sample. We include comparison...
Any polar-ordered material with a spatially uniform polarization field is internally frustrated: The symmetry-required local preference for polarization is to be nonuniform, i.e., to be locally bouquet-like or "splayed." However, it is impossible to achieve splay of a preferred sign everywhere in space unless appropriate defects are introduced into the field. Typically, in materials like ferroe...
we present observation of polar coronal hole plumes with foot point jets that shows evidence of longitudinal acceleration. the series of event, occurring in the north coronal hole on 10 july 2010, was observed by the aia telescopes of the solar dynamic observatory (sdo mission) in the euv lines, with unprecedented details. the structures along the plume show a propagating outward velocity of ab...
In the past, the extended corresponding states approach to fluid property prediction has been restricted to Ž . non-polar fluids e.g., hydrocarbons and some common non-polar inorganics due to the lack of an accurate way to predict the required shape factors. In this work, a new predictive method to obtain shape factors for the Ž . extended corresponding states theory ECST has been developed whi...
A Helmholtz energy functional for inhomogeneous fluid phases based on the perturbed-chain polar statistical associating fluid theory (PCP-SAFT) equation of state is proposed. The model is supplemented with a capillary wave contribution to the surface tension to account for long-wavelength fluctuations of a vapor-liquid interface. The functional for the dispersive attraction is based on a nonloc...
in the present work, the integral equations method is used to calculate transport properties of polar fluids. for this goal, we use the stockmayer potential and examine theoretically the thermal conductivity of several refrigerant mixtures such as r125+r134a, r125+r32, r125+r152a, r134a+r32, r152a+r32, r134a+r143a, and r125+r143a. we solve numerically the ornstein-zernike (oz) equation using th...
In the present work, the integral equations method is used to calculate transport properties of polar fluids. For this goal, we use the Stockmayer potential and examine theoretically the thermal conductivity of several refrigerant mixtures such as R125+R134a, R125+R32, R125+R152a, R134a+R32, R152a+R32, R134a+R143a, and R125+R143a. We solve numerically the Ornstein-Zernike (OZ) equation usin...
Recently Khasare derived an equation of state for L-J fluid by modifying an expression for work done, obtained from partition function through perturbation approach .This is achieved by inserting at some fixed position in the m-component fluid, a single solute particle of radius ‘R’ in n-dimensions along with the necessary thermodynamic requirements. It was therefore thought worthwhile to under...
Computational fluid dynamic (CFD); Linearized two-dimensional transient flow (LTDT); Polar gridline transformation method. Abstract A novel derivation to transfer an actual domain with circular geometries to the computational domain, which is competent for application to computational fluid dynamics, is derived. Outcome formulas could be employed in cases of gridline transformation in the metho...
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