Zobrazeno 1 - 10
of 40
pro vyhledávání: '"O. I. Dodulad"'
Autor:
D. V. Shcherbakov, V. V. Abannikov, O. I. Dodulad, D. Yu. Lyubimov, Yu. Yu. Kloss, O. K. Shaikhatarov
Publikováno v:
Atomic Energy. 128:136-142
The behavior of radionuclides (Kr and Xe) and process gases (CO) in the vacuum-cesium channel of a thermionic converter reactor is modeled by solving Boltzmann’s equation numerically. Modeling techniques and a software system were developed in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0644fbde3538bfac97ff941b7bf35b4
https://doi.org/10.1007/s10512-020-00664-w
https://doi.org/10.1007/s10512-020-00664-w
Publikováno v:
Computational Mathematics and Mathematical Physics. 56:996-1011
Flows of a simple rarefied gas and gas mixtures are computed on the basis of the Boltzmann kinetic equation, which is solved by applying various versions of the conservative projection method, namely, a two-point method for a simple gas and gas mixtu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38bb9d5c908b3092ddf220963cf5ad52
https://doi.org/10.1134/s0965542516060117
https://doi.org/10.1134/s0965542516060117
Publikováno v:
30th International Symposium on Shock Waves 2 ISBN: 9783319448640
One considers a phenomenon that has been observed in some experimental works [1, 2], confirmed by an analysis based on the assumption of a bimodal shape of the distribution functions inside the SW [1] and by computations using the Monte Carlo simulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7599fc456ec3d933e463586725b4c475
https://doi.org/10.1007/978-3-319-44866-4_11
https://doi.org/10.1007/978-3-319-44866-4_11
Publikováno v:
Vacuum. 109:360-367
The paper presents some results of computing of a gas mixture flows in Knudsen pumps. The simulations are carried out by numerically solving the Boltzmann kinetic equation by the conservative projection method. Interactions of gas molecule are modele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::586e3625cfc4346b6aa6b342863606cc
https://doi.org/10.1016/j.vacuum.2014.06.019
https://doi.org/10.1016/j.vacuum.2014.06.019
Publikováno v:
International Journal of Computer Mathematics. 92:1775-1789
The conservative method of calculating the Boltzmann collision integral for simple gases, gas mixtures and gases with rotational degrees of freedom of molecules is presented. In all cases the common approach based on the projection technique of summi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35642ebc2a9f7e19ee242877fc456e4d
https://doi.org/10.1080/00207160.2014.909033
https://doi.org/10.1080/00207160.2014.909033
Autor:
F. G. Tcheremissine, O. I. Dodulad
Publikováno v:
Computational Mathematics and Mathematical Physics. 53:827-844
The structure of a shock wave in a monatomic one-component gas was computed by solving the Boltzmann kinetic equation with accuracy controlled with respect to computational parameters. The hard-sphere molecular model and molecules with the Lennard-Jo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3e5c8033deca992ca3ea9cbbc709a2e
https://doi.org/10.1134/s0965542513060055
https://doi.org/10.1134/s0965542513060055
Autor:
Denis Martynov, Yu. A. Anikin, F. G. Tcheremissine, P. V. Shuvalov, O. I. Dodulad, Yu. Yu. Kloss
Publikováno v:
Vacuum. 86:1770-1777
The paper presents some results of computing gas mixture flows in Knudsen and Holweck pumps. Transient flow development processes and attainment of the steady state are considered. The calculations were performed using a problem solving environment d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6518b74f68faf665c9f7958df41a1a36
https://doi.org/10.1016/j.vacuum.2012.02.024
https://doi.org/10.1016/j.vacuum.2012.02.024
Autor:
O. I. Dodulad, Yu. Yu. Kloss, F. G. Tcheremissine, Yu. A. Anikin, Denis Martynov, Oleg A. Rogozin, E. P. Derbakova, P. V. Shuvalov
Publikováno v:
ICCS
The paper describes the methodology of computing gas flows in narrow micro- and nanoscale channels on the basis of finite-difference solution of the Boltzmann kinetic equation using the conservative projection method of collision integral calculation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd0b7434893b05d12ac7f9d8446c1220
Publikováno v:
AIP Conference Proceedings.
Gas separation in thermal creep based micro devices is studied by solving the Boltzmann kinetic equation by the finite difference discrete ordinates method. The collision integral is evaluated by two alternative versions of the conservative projectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52025e07f7d7f8dff3415cdcfb5a5ae4
https://doi.org/10.1063/1.4769626
https://doi.org/10.1063/1.4769626
Autor:
O. I. Dodulad, F. G. Tcheremissine
Publikováno v:
AIP Conference Proceedings.
A new projection method for computing the Boltzmann collision integral at a discrete momentum grid that is conservative by mass, momentum, and energy, and annul the integral from the Maxwellian distribution function is proposed. The method is applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79871f923df7476f7174c7e241ac7888
https://doi.org/10.1063/1.4769529
https://doi.org/10.1063/1.4769529