Seklo plūsmu lineāra un vāju nelineāra stabilitātes analīze atklātās sistēmās

6533b7d3fe1ef96bd1260ecc

RESEARCH PRODUCT

Seklo plūsmu lineāra un vāju nelineāra stabilitātes analīze atklātās sistēmās

Sergejs Nazarovs

subject

Fizika materiālzinātne matemātika un statistika Matemātika

description

Anotacija. Promocijas darba ir analizetas seklas bides fluidu plusmas atklatas sistemas, izmantojot linearas un vaji nelinearas metodes. Promocijas darba ir apskatita dažadu faktoru ietekme uz stabilitates analizes rezultatiem. Analizetie faktori ietver plusmas atruma vertikala profila nevienmeribu, plusmas dziluma perturbacijas. Iegutie rezultati parada, ka profila nevienmeribai var but nozimiga ietekme uz stabilitates analizes rezultatiem. Plusmas dziluma perturbacijas dažos gadijumos var but ignoretas, jo tam, iespejams, nav lielas ietekmes. Ir veikta divfazu fluidu plusmas stabilitates analize, un ir paradits, ka dalinas palielina plusmas stabilitati un samazina perturbacijas augšanas atrumu. Promocijas darba ir aprakstita Ginzburga-Landau vienadojuma iegušanas procedura vienfazes un divfazu plusmam. Ir veikta seklo plusmu ar mainigu horizontalo atrumu profilu stabilitates analize un ieguta risinajuma aproksimacija.

year	journal	country	edition	language
2008-01-01

https://dspace.lu.lv/dspace/handle/7/4041

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