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Smart RTD for multiphase flow systems
Simcik, M.; Ruzicka, M. C.; Mota, A.; Teixeira, J. A.A relatively new concept is presented for evaluation of the fluid age distribution a = a(x,t) within the interior of an apparatus. In the standard RTD approach, the tracer study is performed and the residence time distribution is obtained. In the new approach denoted as SRTD, the fluid age is considered as the field quantity and the governing equation is formulated for its spatio-temporal distribution within th...
CFD simulation and experimental measurement of gas holdup and liquid interstiti...
Simcik, M.; Mota, André; Ruzicka, M. C.; Vicente, A. A.; Teixeira, J. A.This paper documents experiments and CFD simulations of the hydrodynamics of our two-phase (water, air) laboratory internal loop airlift reactor (40 l). The experiments and simulations were aimed at obtaining global flow characteristics (gas holdup and liquid interstitial velocity in the riser and in the downcomer) in our particular airlift configurations. The experiments and simulations were done for three dif...
Euler-euler simulation of gas-liquid and gas-liquid-solid airlift reactors : ca...
Simcik, M.; Havlica, J.; Ruzicka, M. C.; Drahoš, J.; Teixeira, J. A.; Brányik, Tomáš
Gas holdup in laboratory scale bubble column : CFD simulations vs. measurements
Simcik, M.; Kulaviak, L.; Havlica, J.; Ruzicka, M. C.; Drahoš, J.; Teixeira, J. A.
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