Equations of hydrodynamics for multicomponent mixtures with transport coefficients in higher approximations

AbstractTransport coefficients (like diffusion and thermodiffusion) are the key parameters to be studied in non-equilibrium thermodynamics. For practical applications, it is important to predict them based on the thermodynamic parameters of a mixture under study: pressure, temperature, composition, and thermodynamic functions, like enthalpies or chemical potentials. The current study develops a thermodynamic framework for such prediction. The theory is based on a system of physically interpretable postulates; in this respect, it is better grounded theoretically than the previously suggested models for diffusion and thermodiffusion coefficients. In fact, it translates onto the thermodynamic language of the previously developed model for the transport properties based on the statistical fluctuation theory. Many statements of the previously developed model are simplified and amplified, and the derivation is made transparent and ready for further applications. The n(n+1)/2 independent Onsager coefficients are reduced to 2n+1 determining parameters: the emission functions and the penetration lengths. The transport coefficients are expressed in terms of these parameters. These expressions are much simplified based on the Onsager symmetry property for the phenomenological coefficients. The model is verified by comparison with the known expressions for the diffusion coefficients that were previously considered in the literature.

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VALIDATION OF THE TRANSPORT COEFFICIENTS IN DILUTE GASES BY DIRECT SIMULATION MONTE CARLO

International Symposium on Advances in Computational Heat Transfer ◽

10.1615/ichmt.2008.cht.750 ◽

2008 ◽

Author(s):

Djamel Omeiri ◽

Djamel Essolh Djafri ◽

Ahcene Nouar

Keyword(s):

Monte Carlo ◽

Transport Coefficients ◽

Direct Simulation Monte Carlo ◽

Direct Simulation ◽

Dilute Gases ◽

Simulation Monte Carlo

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TRANSPORT COEFFICIENTS IN F-S THEORY

10.1615/ihtc5.1230 ◽

1974 ◽

Author(s):

D. Bolmont ◽

J. Salmon ◽

M. Valton

Keyword(s):

Transport Coefficients

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Methods for saving the productivity of slope lands

сборник статей всероссийской научной конференции с международным участием "Растениеводство и луговодство" ◽

10.26897/978-5-9675-1762-4-2020-57 ◽

2020 ◽

Author(s):

N.A. Batyakhina N.A. ◽

Keyword(s):

Forest Soil ◽

Crop Rotation ◽

Plant Communities ◽

Crop Production ◽

Phosphorus Content ◽

Gray Forest Soil ◽

Conservation Tillage ◽

Multicomponent Mixtures

The influence of various annual multicomponent mixtures in the crop rotation link on its productivity and fertility of gray forest soil is shown. The complexity of the structure of plant communities has reduced the share of weeds in crop production annual mix, 2.6-3.7% and conservation tillage for wheat has increased by 2.5 times the phosphorus content is 1.9 times the potassium, 12% increased productivity.

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