"Hydrodynamick\u00E9 nestability vyvolan\u00E9 p\u0159\u00EDtomnost\u00ED chemick\u00E9 reakce v kapaln\u00E9m syst\u00E9mu s volnou hladinou" . "The project was focussed to influence of various parameters on nonlinear dynamic behavior of the reaction of an acid with iodate Arsenic. The new information relating to the formation of spontaneous fluid flow in model solutions were obtained. The project had basic research character, fulfilled the defined objectives and planned outcomes specified in the project proposal."@en . . . "2"^^ . "0"^^ . . . "hydrodynamic instabilities free convection induced by chemical reaction reaction front pattern formation Marangoni convection density gradients surface tension"@en . "2"^^ . "1"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=GAP105/10/0919"^^ . . . "V posledn\u00ED dob\u011B je st\u00E1le v\u011Bt\u0161\u00ED pozornost v\u011Bnov\u00E1na studiu chemo-hydrodynamick\u00FDch nestabilit spojen\u00FDch s v\u00FDm\u011Bnou hmoty a energie skrz fyzik\u00E1ln\u00ED rozhran\u00ED. P\u0159edkl\u00E1dan\u00FD projekt se zab\u00FDv\u00E1 studiem hydrodynamick\u00FDch nestabilit vyvolan\u00FDch chemickou reakc\u00ED kyseliny arsenit\u00E9 s jodi\u010Dnanem prob\u00EDhaj\u00EDc\u00ED v kapaln\u00E9m prost\u0159ed\u00ED s volnou hladinou. Reaktor obd\u00E9ln\u00EDkov\u00E9ho pr\u016F\u0159ezu a d\u00E9lky 20 cm je navr\u017Een tak, \u017Ee je mo\u017En\u00E9 m\u011Bnit v\u00FD\u0161ku hladiny reak\u010Dn\u00ED sm\u011Bsi. Samotn\u00E1 reak\u010Dn\u00ED z\u00F3na tvo\u0159\u00ED rozhrann\u00ED mezi dv\u011Bma dokonale m\u00EDsiteln\u00FDmi kapalinami. B\u011Bhem prvotn\u00EDch experiment\u016F bylo zji\u0161t\u011Bno, \u017Ee v tomto prost\u0159ed\u00ED doch\u00E1z\u00ED ke vzniku voln\u00E9 konvekce spojen\u00E9 s tvorbou struktur podobn\u00FDch turbulenci . D\u00E1le byla pozorov\u00E1na deformace tenk\u00E9 reak\u010Dn\u00ED z\u00F3ny, kter\u00E1 se n\u00E1sledn\u011B zbortila. C\u00EDlem tohoto projektu je ur\u010Den\u00ED mechanizmu vzniku t\u011Bchto jev\u016F. Jsou pl\u00E1nov\u00E1ny experimenty, b\u011Bhem nich\u017E bude systematicky studov\u00E1n vliv jednotliv\u00FDch transportn\u00EDch proces\u016F p\u0159\u00EDtomn\u00FDch v tomto syst\u00E9mu, nap\u0159. vliv sd\u00EDlen\u00ED hmoty p\u0159es fyzik\u00E1ln\u00ED rozhran\u00ED, Marangoniho jevy, vliv vztlakov\u00E9 s\u00EDly. Experimenty budou paraleln\u011B doprov\u00E1zeny numerickou studi\u00ED." . . "2014-12-31+01:00"^^ . "2015-05-22+02:00"^^ . "2014-03-19+01:00"^^ . . "Chemically induced hydrodynamic instabilities in a liquid layer with a free gas-liquid interface"@en . . "0"^^ . . . "2010-01-01+01:00"^^ . . . . . "GAP105/10/0919" . . "In the recent period still increasing attention has been paid to chemo-hydrodynamic instabilities bound to mass and heat exchanges through physical interfaces. Chemo-hydrodynamic instabilities connected with coupling of the Iodate Arsenous Acid reaction and induced convection will be investigated in system with free liquid-gas interface.\u00A0 The rectangular 20 cm long channel reactor provides regulation of the reaction solution depth. The thin reaction zone itself serves as interface between two miscible fluids. Preliminary experimental results have shown unexpected behavior of the system like: i) deformation of the reaction front, ii) collapse of the front, iii) formation of turbulence like flow patterns, etc. Mechanism of the behavior is not known yet and represents one of the goals of this project. The systematic experimental study will be carry out under specific strictly determine conditions, where Marangoni, buoyancy effects or some particular mass transport processes will be under the control. The experiments will be supported by parallel numerical studies."@en . "Projekt se orientoval na vliv jednotliv\u00FDch parametr\u016F na neline\u00E1rn\u011B dynamick\u00E9 chov\u00E1n\u00ED reakce kyseliny arsenit\u00E9 s jodi\u010Dnanem prob\u00EDhaj\u00EDc\u00ED v kapaln\u00E9m prost\u0159ed\u00ED s volnou hladinou. Byly z\u00EDsk\u00E1ny nov\u00E9 poznatky t\u00FDkaj\u00EDc\u00ED se vzniku samovoln\u00E9ho toku kapaliny v modelov\u00FDch roztoc\u00EDch. Projekt m\u011Bl charakter z\u00E1kladn\u00EDho v\u00FDzkumu, splnil definovan\u00E9 c\u00EDle a pl\u00E1novan\u00E9 v\u00FDstupy uveden\u00E9 v n\u00E1vrhu projektu."@cs . .