Statistical characterization of the flow structure of air-water-solid particles three-phase flow in the airlift pump-bubble generator system

Catrawedarma, Ignb.; Resnaraditya, Fadliqa Aghid; Deendarlianto,; Indarto, Indarto

doi:10.1016/j.flowmeasinst.2021.102062

Cited by 11 publications

(7 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coordinates of the data collection points are listed in Table II. According to Catrawedarma et al, 23 greater uniformity of the initial size and distribution of bubbles produces a more efficient system. Hence, the air inlet used in this experiment was designed as shown in Fig.…”

Section: Analytical and Experimental Results A Experimental Apparatusmentioning

confidence: 99%

“…Catrawedarma et al 23 designed a special bubble generator to suck atmospheric air in and produce uniform-sized and evenly distributed bubbles in the riser pipe using pressurized water from a water pump. They claimed that the probability density function of the differential pressure became wider as the superficial air velocity increased, because an increase in air velocity resulted in greater coalescence and breakup of bubbles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gas state equation and flow mechanism of gas–liquid two-phase flow in airlift pump system

Du,

Zhu,

Han

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

Airlift pumps (ALPs) have a simple structure and significant application potential. However, previous studies on ALPs have generally assumed that the gas density remains constant. In this paper, the gas state equation (GSE) for ALP is established based on the van der Waals formula, which explicitly considers the density of gas. An electrical resistance tomography system is used to collect the gas void fractions at different heights under different gas flow rates, and an empirical formula for the gas void fraction is established. To verify the effectiveness of the proposed model, high-precision pressure sensors and a high-speed camera are used alongside an electrical resistance tomography system to determine the realistic ALP flow parameters. The results of 409 sets of experiments show that: (1) the gas in ALP cannot be regarded as ideal gas, because the ideal GSE cannot distinguish between different gas flow rates; (2) the state change of gas in ALP is a quasi-equilibrium process, whereby the GSE of ALP can be obtained from the pressures under several locations; (3) the axial pressures predicted by the proposed GSE for ALP are in good agreement with experimental data; and (4) a single parameter of the GSE uniquely determines the state process. The proposed model and the experimental data provide a new methodology and comprehensive references for studying the working mechanism and efficiency of ALPs.

show abstract

Section: Analytical and Experimental Results A Experimental Apparatusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gas state equation and flow mechanism of gas–liquid two-phase flow in airlift pump system

Du,

Zhu,

Han

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

show abstract

“…The PSD analysis encompasses three spectrum types according to measured signals. This analysis utilizes the fast Fourier transform to express the signal in the frequency domain and indicates the number of bubbles appearing in the channel per unit time (Catrawedarma et al, 2021). Therefore, PSD analysis is usually used to characterize flow patterns or regimes.…”

Section: Power Spectral Density Analysismentioning

confidence: 99%

“…However, these techniques tend to be subjective since they rely on the observer's perception of the flow pattern characteristics. To address this limitation, some researchers have utilized signal processing techniques to characterize two-phase flow patterns (Elperin and Klochko, 2002;Catrawedarma et al, 2021;Wijayanta et al, 2022). Elperin and Klochko (2002) employed discrete wavelet transform (DWT) analysis to characterize the flow pattern in gas-Newtonian liquid two-phase flows in conventional pipes.…”

Section: Introductionmentioning

confidence: 99%

“…Elperin and Klochko (2002) employed discrete wavelet transform (DWT) analysis to characterize the flow pattern in gas-Newtonian liquid two-phase flows in conventional pipes. Furthermore, the transitions of the flow pattern in an airlift pump have been analyzed using signal processing methods such as power spectral density (PSD) and DWT (Catrawedarma et al, 2021). Wijayanta et al (2022) utilized PSD and DWT techniques to describe the interfacial behavior of gas-liquid stratified flow in a conventional channel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preface: Multiphase Flows

Sugiyama,

Hayashi

2023

MultScienTechn

View full text Add to dashboard Cite

Multiphase Science and Technology (MST) publishes novel research work covering all aspects of multiphase systems. The scope of MST encompasses theoretical concepts, physical modeling, experimental techniques, and numerical simulations. Main research areas include but are not limited to mechanics of interfaces, internal flows, external flows, multiphase flow modeling, measuring techniques, micro-and nano-fluidics, and multiphase bio-systems.MST accepts the following manuscripts for publication: Short communications, which should not exceed 4 pages starting with a brief abstract. These communications should not contain section headings and should be accompanied by a statement of justification for the reason for rapid publication in the form of a covering letter to the Editor. Full-length papers of original, high-quality research:The format of the full papers should start with a brief abstract followed by an introduction section; followed by sections containing results and discussion, conclusions, references, and appendices if necessary. Highlights and Reviews: "Highlight" papers give authors the opportunity to highlight the importance of a new topic of particular interest to the community by discussing its importance, challenges that it faces, and identify future research opportunities. Authors could also use this opportunity to highlight growing/emerging areas in multiphase science. These papers should not contain new research and should not exceed 6 pages in MST format; these articles are normally published via invitation by the Editorial Board. Review papers are normally published via invitation by the Editorial Board and should correspond to critical reviews and/or tutorial papers on a broad subject. Position Papers: These are papers on 'hot' research themes of topical interest. These papers may be invited by the Editorial Board or unsolicited, have a similar format to that of the Letter/Brief communications (see above) and should not exceed 4 pages in length. The author(s) of these papers have an opportunity to communicate their personal opinion (which could be speculative and controversial) on a particular topic, and/or comment on a recent paper in MST; in the latter case, the authors of the relevant paper will be given the opportunity to respond to these comments in the same issue. Special Issues: There may be scope to dedicate an entire issue to the publication of several, full-length papers on a given topic of particular interest to the community. The publication of these issues follows a detailed statement of justification for the dedication of an entire MST issue for one topic. Photo and Video Gallery: A gallery photos and videos of multiphase flow experiments or simulations, selected from research published in MST, will be published on the MST website once a year.

show abstract

Hydrodynamic behaviors of air–water two-phase flow during the water lifting in a bubble generator type of airlift pump system

2021

View full text Add to dashboard Cite

The effects of submergence ratio and gas flow rate on the performance and hydrodynamic behavior of air-liquid two-phase flow have been investigated during liquid lifting in the developed bubble-generator-type airlift pump system. Here, a mechanistic model was also developed to predict the performance of the bubble-generator-type airlift pump system on the basis of pressure balance with considering the intake angle of the injector, and the suction pipe length. A developed image processing technique was implemented to determine the hydrodynamic behaviors including gas slug velocity, water slug velocity, slug length, and gas hold up under the various submergence ratio and gas flow rate. The submergence ratio is the ratio between the static lift and the sum of static lift and static head. The experimental result was found that the minimum air flow rate for removing water is reduced by 19.17% when the airlift pump is combined with an orifice-type bubble generator. The decrease in submergence ratio causes the lower the efficiency at the critical point of airlift pump-bubble generator. Under the same submergence ratio, an increase in the supplied air superficial velocity increased the hydrodynamic parameter. A mechanistic model from pressure balance and dimensional analysis have a maximum error of 11.97% and 3.33%, respectively.

show abstract

Statistical characterization of the flow structure of air-water-solid particles three-phase flow in the airlift pump-bubble generator system

Cited by 11 publications

References 48 publications

Gas state equation and flow mechanism of gas–liquid two-phase flow in airlift pump system

Gas state equation and flow mechanism of gas–liquid two-phase flow in airlift pump system

Preface: Multiphase Flows

Hydrodynamic behaviors of air–water two-phase flow during the water lifting in a bubble generator type of airlift pump system

Contact Info

Product

Resources

About