Flow pattern transition instability
WebApr 12, 2024 · Time-resolved schlieren photography was used to visualise mixing zones induced by the Richtmyer–Meshkov instability. These were initiated with four different initial conditions: three of them with monotonic, single-mode shapes and one with a non-monotonic, multi-mode shape. These initial conditions were generated by an innovative … WebElongated bubble flow is a unique flow pattern that occurs during flow boiling in a microchannel. The incepted bubbles quickly grow to the channel size and ... C. Huh, J. …
Flow pattern transition instability
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WebApr 1, 2014 · Flow pattern transition. This kind of instability has been described in the literature for. the first time in 1970s. Nevertheless, this phenomenon is not re- ... Flow … Web18 rows · Other flow instabilities include “zig-zag,” “scattering,” and “wave patterns” in the extruded sheets [28]. A “zig-zag” pattern is observed as chevrons in the flow directions, …
WebDec 1, 2010 · Flow pattern transition instability in a microchannel with CO 2 bubbles produced by chemical reactions. Int. J. Heat Mass Transfer (2005) C. Cramer et al. Drop formation in a co-flowing ambient fluid. Chem. Eng. Sci. (2004) M. Richter et al. Microchannels for applications in liquid dosing and flow-rate measurement. Sensor … WebApr 14, 2024 · In view of the gas-liquid two-phase flow process in the oxygen-enriched side-blown molten pool, the phase distribution and manifold evolution in the side-blown furnace under different working conditions are studied. Based on the hydrodynamics characteristics in the side-blown furnace, a multiphase interface mechanism model of copper oxygen …
WebDec 15, 2010 · Abstract and Figures. This paper introduces the flow instability concept and the problem of transition prediction. The … WebOct 1, 2024 · These pattern transitions shown in the outlet reactor are caused by the upstream compressible slug volume, as illustrated in Fig. 16 , which is also one of the main triggers of ow instability [26] .
Webof pipelines and other process equipment that involve this flow pattern. Instability may result in transition from stratified-smooth to stratified-wavy flow. Interfacial waves in …
WebOct 15, 2024 · Flow pattern transition and flow instability are analyzed, considering the effects of reactant flow rate and pin–fin configurations in both inlet and outlet reactors. Combining with flow pattern data, a time–frequency analysis is conducted by wavelet transform to understand the coupling between flow instability and conversion. flink cdc snapshot checkpointWebNov 18, 2024 · Abstract. Flow pattern is an important engineering design factor in two-phase flow in the chemical, nuclear, and energy industries, given its effects on pressure … flink cdc vs canalWebJan 2, 2024 · Flow pattern transition and instability. Full size image. 2.2 Classification of flow instability. According to the mechanism of flow boiling instabilities [46,47,48,49], it … flink cdc web uiWebOct 1, 2005 · The flow pattern transition instability between bubbly-slug and slug flow takes place for the cases with highest inlet concentration, i.e., C = 0.8 mol/L, and low flow rates of this study. The oscillation frequency is from 0.024 to 0.041 Hz and the magnitude of oscillation in pressure drop is from 10 to 15 kPa. flink cdc 和 canalWebA simple diagram of the transition from a stable flow to a turbulent flow. a) stable, b) turbulent ... which shows the "ocean wave" like pattern associated with the Kelvin–Helmholtz instability forming in clouds. The Kelvin–Helmholtz instability (KHI) is an application of hydrodynamic stability that can be seen in nature. It occurs when ... greater good multi color paw print slippersWebSep 1, 2024 · The fundamental flow pattern results show that 7 typical flow characters appear in different step channel. ... In the foregoing review, it can be found that the flow instability appears with the transition from laminar regime to transitional regime, which has a strong effect on heat transfer. This instability appears with a degree of regularity ... flink cdc unexpected block dataWebDec 10, 2013 · A systematic work on the prediction of flow patterns transition of the oil-water two-phase flows is carried out under a wide range of oil phase viscosities, where four main flow regimes are considered including stratified, dispersed, core-annular, and intermittent flow. For oil with a relatively low viscosity, VKH criterion is considered for the … flink cdc to hive