Bubbly Flow Analysis
Bubbly Flow Analysis - Related Videos
01:13
Excess Pressure Inside a Drop and a Bubble
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2023
The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops. where γ corresponds to the surface tension. Recalling that the force per...
01:20
Free Cash Flow Analysis
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2025
Free cash flow (FCF) is a critical indicator of a company’s financial flexibility and long-term viability. It represents the cash remaining after a firm covers its essential capital expenditures—funds used to maintain or expand physical assets like equipment, buildings, or technology.Calculating Free Cash FlowFree cash flow is calculated by taking the cash generated from operating activities and subtracting the company’s capital expenditures. This clearly measures how much cash remains after...
08:19
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
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Cited by 2 •
2021
A fast and reliable technique is proposed to control the shape oscillations of a single, trapped acoustic bubble that is based on coalescence technique between two bubbles. The steady-state, symmetry-controlled bubble shape oscillations allow analysis of the fluid flow generated in the vicinity of the bubble interface.
09:39
Techniques for the Analysis of Extracellular Vesicles Using Flow Cytometry
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Cited by 31 •
2015
Many different methods exist for the measurement of extracellular vesicles (EVs) using flow cytometry (FCM). Several aspects should be considered when determining the most appropriate method to use. Two protocols for measuring EVs are presented, using either individual detection or a bead-based approach.
11:08
Analysis of Cell Suspensions Isolated from Solid Tissues by Spectral Flow Cytometry
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Cited by 4 •
2017
This article describes spectral cytometry, a new approach in flow cytometry that uses the shapes of emission spectra to distinguish fluorochromes. An algorithm replaces compensations and can treat auto-fluorescence as an independent parameter. This new approach allows for the proper analysis of cells isolated from solid organs.
FAQs
Bubble motion results from competing forces: buoyancy drives upward movement, while drag resists relative motion between phases. Interfacial forces modify the bubble-liquid boundary and can influence trajectories and deformation. Bubble size changes the balance among these effects, so engineers must account for size distribution when predicting flow behavior and phase interactions.
Void fraction indicates how much of the flow volume is occupied by gas bubbles. Its distribution affects transport and pressure behavior, while coalescence combines bubbles and breakup divides them into smaller structures. Tracking these processes helps explain changes in the bubble population and supports evaluation of mixing and flow stability.
Experimental measurements reveal how bubbles are distributed and how phases interact under a given flow condition, whereas computational models represent those interactions for analysis and design. Using both approaches helps characterize transport, pressure, mixing, and flow stability. Their combined use supports comparison between observed and predicted behavior before engineers modify equipment or operating conditions.
A practical workflow starts by describing bubble size, void fraction, phase motion, and relevant interfacial effects. Engineers then use experimental measurements and computational models to characterize the interactions and examine transport, pressure, mixing, or stability. Comparing these results helps identify how bubble distribution influences performance and provides a basis for improving system design and operation.
Applications include reactors, pipelines, cooling systems, pumps, and gas-liquid contactors. In each case, bubble distribution and flow stability can affect efficiency, safety, and equipment performance. Analysis helps engineers evaluate how multiphase interactions influence operation across these systems, supporting design decisions that address transport, pressure, mixing, and phase behavior.
The analysis can characterize transport, pressure, mixing, and flow stability while showing how bubble distribution affects equipment performance. These outcomes help connect gas-liquid interactions with efficiency and safety concerns. Engineers can use the resulting experimental or computational understanding to improve the design and operation of multiphase processes rather than relying only on bulk flow observations.