National Repository of Grey Literature 19 records found  previous11 - 19  jump to record: Search took 0.01 seconds. 
Produkce atomárního jódu
Picková, Irena ; Jirásek, Vít ; Schmiedberger, Josef
In this article we describe our new experimental device for generation of atomic iodine in discharge for a COIL (chemical oxygen-iodine laser) and also DOIL (discharge oxygen-iodine laser) systems. For the new discharge method of atomic iodine generation, we are going to use the optical emission spectroscopy diagnostics, by which we will detect species present in plasma and use this information for optimization of iodine generation process.
Úprava počítačové mříže a výběr interpolačního schématu při řešení supersonického míchání proudícího prostředí
Jirásek, Vít
The injection of diluted iodine into the supersonic flow of helium was studied by means of CFD software Fluent. The computational grid was subsequently adapted, i.e. refined in the selected regions with large gradients of different defined quantities. A sensitivity of the refinement on the local and far-field solution was obtained. A sensitivity of the flowfield on the replacement of the first order interpolation scheme to the second order one in several combinations of solved equations was done. An influence of the increasing the interpolation scheme order on the far-field was found, dependent on the way of combination of the 1st and 2nd orders in selected equations interpolation.
Study of gas reactions in a chemical oxygen-iodine laser
Jirásek, Vít ; Špalek, Otomar ; Čenský, Miroslav ; Kodymová, Jarmila ; Picková, Irena ; Jakubec, Ivo
Experimentálně a teoreticky byly studovány chemické metody produkce atomárního jódu pro chemický kyslík-jodový laser (COIL) z plynných reakčních složek reakcemi atomů chloru nebo fluoru s jodovodíkem. Obě metody poskytují po optimalizaci produkčních podmínek vysoké výtěžky a koncentrace jódu, které jsou dostatečné pro účinnou laserovou generaci v COIL. Zásadním předpokladem pro velké laserové zesílení je zamezení reakce mezi singletovým kyslíkem a jodovodíkem, která vede k jeho zhášení na základní stav. Reagující i nereagující proudění plynu bylo modelováno pomocí kvazi-1D a CFD výpočtů.
Generation of singlet oxygen for a chemical oxygen-iodine laser
Čenský, Miroslav ; Jirásek, Vít ; Špalek, Otomar ; Kodymová, Jarmila ; Hrubý, Jan
The paper deals with a chemical spray singlet oxygen generator for a chemical oxygen-iodine laser that was designed in the Institute of Physics AS in cooperation with the Institute of Thermomechanics AS. Preliminary experimental results obtained on parametric investigation of this device are presented.
2-D a 3-D modelování chemicky reagujícího proudícího media pro chemický kyslík-jodový laser
Jirásek, Vít
CFD methods are necessary tools for calculations of compressible, subsonic-supersonic flow coupled to a complex chemistry in the chemical oxygen-iodine laser technology. Selected examples of CFD simulations are presented concerning the mixing of gaseous reactants and generation of atomic iodine as a lasing species.
Experimental results on chemical generation of atomic iodine
Špalek, Otomar ; Jirásek, Vít ; Čenský, Miroslav ; Kodymová, Jarmila ; Jakubec, Ivo
In this paper were presented experimental results on chemical generation of atomic iodine.
Generation of atomic iodine for chemical oxygen-iodine laser
Jirásek, Vít ; Špalek, Otomar ; Kodymová, Jarmila ; Čenský, Miroslav
A new method of atomic iodine generation for chemical oxygen-iodine laser based on fast reactions of gaseous reactants.
Research and development of chemical oxygen-iodine laser in the Institute of Physics Academy of Science of the Czech Republic
Čenský, Miroslav ; Kodymová, Jarmila ; Špalek, Otomar ; Jirásek, Vít
Chemical Oxygen-Iodine Laser and Prague Asterix Laser System are two iodine lasers studied in the Institute of Physics in Prague. Survey of the research made on the first system in this institute is given in this presentation.

National Repository of Grey Literature : 19 records found   previous11 - 19  jump to record:
See also: similar author names
4 Jirásek, Vojtěch
2 Jirásek, Václav
Interested in being notified about new results for this query?
Subscribe to the RSS feed.