Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Experimental studying of local characteristics of gas-liquid flow in microchannels by optical methods. / Bartkus, German V.; Kuznetsov, Vladimir V.
XV All-Russian Seminar "Dynamics of Multiphase Media", DMM 2017. ed. / Fomin. Vol. 1939 American Institute of Physics Inc., 2018. 020001 (AIP Conference Proceedings; Vol. 1939).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
}
TY - GEN
T1 - Experimental studying of local characteristics of gas-liquid flow in microchannels by optical methods
AU - Bartkus, German V.
AU - Kuznetsov, Vladimir V.
PY - 2018/3/28
Y1 - 2018/3/28
N2 - The local characteristics of the gas-liquid two-phase flow in rectangular microchannels 420 × 280 μm and 395 × 205 μm with T-shaped mixer inlet were experimentally investigated in this work. Visualization of flow regimes and measurement of local characteristics were carried out using a high-speed video camera Optronis CX600x2 and laser-induced fluorescence (LIF) method. Deionized water and ethanol were used as the liquid phase, and nitrogen - as the gas phase. The Rhodamine 6G dye was added to the liquid. The location of the microchannel in space (horizontal, vertical) was changed. The profiles of the liquid film along the long side of the microchannel were obtained, the local film thickness was measured in the channel's central section for the elongated bubble flow and the transition flow of the deionized water-nitrogen mixture. The unevenness of liquid film thickness at the channel cross-section and along the bubble was experimentally shown. The temporal dynamics of two-phase flow for the ethanol-nitrogen mixture was shown. It was found that most of the liquid flows in the meniscus on the short side of the microchannel for the present gas and liquid flow rates.
AB - The local characteristics of the gas-liquid two-phase flow in rectangular microchannels 420 × 280 μm and 395 × 205 μm with T-shaped mixer inlet were experimentally investigated in this work. Visualization of flow regimes and measurement of local characteristics were carried out using a high-speed video camera Optronis CX600x2 and laser-induced fluorescence (LIF) method. Deionized water and ethanol were used as the liquid phase, and nitrogen - as the gas phase. The Rhodamine 6G dye was added to the liquid. The location of the microchannel in space (horizontal, vertical) was changed. The profiles of the liquid film along the long side of the microchannel were obtained, the local film thickness was measured in the channel's central section for the elongated bubble flow and the transition flow of the deionized water-nitrogen mixture. The unevenness of liquid film thickness at the channel cross-section and along the bubble was experimentally shown. The temporal dynamics of two-phase flow for the ethanol-nitrogen mixture was shown. It was found that most of the liquid flows in the meniscus on the short side of the microchannel for the present gas and liquid flow rates.
KW - BOILING HEAT-TRANSFER
UR - http://www.scopus.com/inward/record.url?scp=85045133889&partnerID=8YFLogxK
U2 - 10.1063/1.5027313
DO - 10.1063/1.5027313
M3 - Conference contribution
AN - SCOPUS:85045133889
VL - 1939
T3 - AIP Conference Proceedings
BT - XV All-Russian Seminar "Dynamics of Multiphase Media", DMM 2017
A2 - Fomin, null
PB - American Institute of Physics Inc.
T2 - 15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017
Y2 - 3 October 2017 through 5 October 2017
ER -
ID: 12438643