Temat: metoda kratowa Boltzmanna - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Application of the interval Lattice Boltzmann method for a numerical modeling of 2D thin metal films irradiated by ultrashort laser pulses
Autorzy:: Piasecka-Belkhayat, Alicja
Korczak, Anna
Powiązania:: https://bibliotekanauki.pl/articles/122840.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: lattice Boltzmann method
interval arithmetic
laser irradiation
heat transfer
metoda kratowa Boltzmanna
arytmetyka przedziałowa
promieniowanie laserowe
przenikanie ciepła
Opis:: In the paper, the two-dimensional numerical modelling of heat transfer in thin metal films irradiated by ultrashort laser pulses using the D2Q9 scheme is considered. In the mathematical description, the relaxation times and the boundary conditions for phonons and electrons are given as interval numbers. The problem has been formulated using the interval coupled lattice Boltzmann equations for electrons and phonons. The solution has been obtained by means of the interval lattice Boltzmann method using the rules of directed interval arithmetic. Examples of numerical computations are presented in the final part of the paper.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2019, 18, 4; 63-71
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dynamics of particle loading in deep-bed filter. Trasport, deposition and reentrainment
Autorzy:: Przekop, R.
Gradoń, L.
Powiązania:: https://bibliotekanauki.pl/articles/184879.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: filtration
lattice Boltzmann
Brownian dynamics
multiphase flow
porous media
filtrowanie
metoda kratowa Boltzmanna
dynamika Browna
przepływ wielofazowy
ośrodek porowaty
Opis:: Deep bed filtration is an effective method of submicron and micron particle removal from the fluid stream. There is an extensive body of literature regarding particle deposition in filters, often using the classical continuum approach. However, the approach is not convenient for studying the influence of particle deposition on filter performance (filtration efficiency, pressure drop) when non-steady state boundary conditions have to be introduced. For the purposes of this work the lattice-Boltzmann model describes fluid dynamics, while the solid particle motion is modeled by the Brownian dynamics. For aggregates the effect of their structure on displacement is taken into account. The possibility of particles rebound from the surface of collector or reentrainment of deposits to fluid stream is calculated by energy balanced oscillatory model derived from adhesion theory. The results show the evolution of filtration efficiency and pressure drop of filters with different internal structure described by the size of pores. The size of resuspended aggregates and volume distribution of deposits in filter were also analyzed. The model enables prediction of dynamic filter behavior. It can be a very useful tool for designing filter structures which optimize maximum lifetime with the acceptable values of filtration efficiency and pressure drop.
Źródło:: Chemical and Process Engineering; 2016, 37, 3; 405-417
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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