Abo Bibliothek: Guest
Atomization and Sprays

Erscheint 12 Ausgaben pro Jahr

ISSN Druckformat: 1044-5110

ISSN Online: 1936-2684

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00095 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

EFFECT OF BUBBLE GENERATION CHARACTERISTICS ON EFFERVESCENT ATOMIZATION AT LOW GAS-LIQUID RATIO OPERATION

Volumen 20, Ausgabe 3, 2010, pp. 211-225
DOI: 10.1615/AtomizSpr.v20.i3.30
Get accessGet access

ABSTRAKT

An experimental investigation into the performance of an effervescent atomizer operated with two different styles of air injectors during low gas-liquid ratio (GLR) operation is discussed. A typical multihole air supply tube and an injector that utilizes a porous media for gas injection are investigated. A preliminary study visualized the two-phase flow within the mixing chamber and the atomization mechanism at the nozzle exit to identify characteristic features of the two-phase flow. A shadowgraph droplet analyzer has also been applied to quantitatively compare the spray performance of the two atomizers in terms of droplet size distribution, droplet Sauter mean diameter (SMD), and the number of large droplets and ligaments within the spray field. The liquid breakup mechanism in the two atomizer configurations has also been quantitatively compared using shadowgraphy in the vicinity of the exit nozzle. The comparison demonstrated that the porous media air injector generates a higher number of smaller bubbles into the atomizer mixing chamber and consequently, a relatively constant GLR into the atomizer exit nozzle. The multihole injection generates large gas bubbles that leads to alternating liquid and gas slugs at the nozzle exit. This generates unsteadiness in the spray and the formation of large ligaments and droplets. The spray field of the porous media air injector, however, has a more steady spray behavior and generates a lower number of large droplets and ligaments. This indicates that bubble size relative to the exit nozzle size has an important impact on spray properties at low-GLR conditions.

REFERENZIERT VON
  1. Liu Meng, Duan Yufeng, Zhang Tienan, Xu Yiqian, Evaluation of unsteadiness in effervescent sprays by analysis of droplet arrival statistics – The influence of fluids properties and atomizer internal design, Experimental Thermal and Fluid Science, 35, 1, 2011. Crossref

  2. Hong Moongeun, Fleck Brian A., Nobes David S., Unsteadiness of the internal flow in an effervescent atomizer nozzle, Experiments in Fluids, 55, 12, 2014. Crossref

  3. Sen Debjyoti, Balzan Miguel A., Nobes David S., Fleck Brian A., Bubble formation and flow instability in an effervescent atomizer, Journal of Visualization, 17, 2, 2014. Crossref

  4. Kourmatzis A., Lowe A., Masri A.R., Combined effervescent and airblast atomization of a liquid jet, Experimental Thermal and Fluid Science, 75, 2016. Crossref

  5. Sun Chunhua, Ning Zhi, Qiao Xinqi, Lv Ming, Li Yuanxu, Zhao Jin, Wang Xintao, Measurements of internal flow regime and bubble size in effervescent atomizer, Experimental Thermal and Fluid Science, 98, 2018. Crossref

  6. Shepard Thomas G., Lee Jaiho, Yan Bo, Strykowski Paul J., Parameters Affecting Bubble Formation and Size Distribution From Porous Media, Journal of Fluids Engineering, 138, 3, 2016. Crossref

  7. Sun Chunhua, Ning Zhi, Qiao Xinqi, Lv Ming, Fu Juan, Zhao Jin, Wang Xintao, Numerical simulation of gas–liquid flow behavior in the nozzle exit region of an effervescent atomizer, International Journal of Spray and Combustion Dynamics, 11, 2019. Crossref

  8. Liu Meng, Duan Yufeng, Predicting the Liquid Film Thickness and Droplet–Gas Flow in Effervescent Atomization: Influence of Operating Conditions and Fluid Viscosity, International Journal of Chemical Reactor Engineering, 11, 1, 2013. Crossref

  9. Hammad Farid A., Sun Kai, Che Zhizhao, Jedelsky Jan, Wang Tianyou, Internal two-phase flow and spray characteristics of outside-in-liquid twin-fluid atomizers, Applied Thermal Engineering, 187, 2021. Crossref

  10. Kourmatzis A., Lowe A., Masri A. R., Conditioned Analysis of Effervescent Atomization, Journal of Energy Engineering, 143, 5, 2017. Crossref

  11. Ochowiak M., The experimental study on the viscosity effect on the discharge coefficient for effervescent atomizers, Experimental Thermal and Fluid Science, 50, 2013. Crossref

Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen Preise und Aborichtlinien Begell House Kontakt Language English 中文 Русский Português German French Spain