May 23, 2019   7:37 a.m. Želmíra
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Study of turbulent accretion process in accreating binary systems through flickering activity

Supervisor: Mgr. Andrej Dobrotka, PhD.

Basic information   Workers      

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Project description:The main purpose of the project is the study of the turbulent flow in high Reynolds number (Re) regime, not accessible in today's laboratories. Accretion systems are unique cosmic experiments to do so. The turbulence minimum dimension scales in the fluid are described by the Re. The largest scales of fluid motion are set by the overall geometry of the flow and are dissipating into smaller eddies up to the minimal dimension scale. From the basic fluid mechanics it is well known that higher Re numbers yield smaller minimal dimension scale. From Reabout 10^6 the dissipation toward smaller scales of turbulent elements is so strong that the fluid becomes quasilaminar. The bigger eddies should dissipate and hence disappear. Today Re estimates from Earth goes toward a value of about 10^8. What is happening then? The typical Re in an accretion disk of cataclysmic variables is of about 10^12 and one of the possibility to explain flickering are turbulence in the disc. Can the flow tell something about the size of the
Kind of project:VEGA ()
Department:Advanced Technologies Research Institute (MTF)
Project identification:1/0511/13
Project status:Successfully completed
Project start date :01. 01. 2013
Project close date:31. 12. 2015
Number of workers in the project:3
Number of official workers in the project:3

Official project workers

The following table shows the researcher workers who have been assigned official roles in a project.

OfficerOfficial roles
Mgr. Filip Holka, PhD.spoluriešiteľ
Mgr. Andrej Dobrotka, PhD.zodpovedný riešiteľ
Bc. Alena Michálikováadministratíva