Library Subscription: Guest
Atomization and Sprays

Published 12 issues per year

ISSN Print: 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

DROPLET TRANSPORT IN SIMPLEX AND AIR-ASSISTED SPRAYS

Volume 6, Issue 1, 1996, pp. 27-49
DOI: 10.1615/AtomizSpr.v6.i1.20
Get accessGet access

ABSTRACT

This article reports an experimental study of drop transport phenomena in sprays. Three-dimensional characteristics of a research simplex atomizer (RSA) with and without atomizing air are measured to provide the benchmark database. Methanol flow rate and pressure are controlled at 1.26 g/s and 357 kPa, respectively. The atomizing air is supplied at a pressure of 3.57 kPa with an air-to-liquid mass ratio of 0.64. The performance of the spray with and without atomizing air is measured by a two-component phase Doppler particle analyzer (PDPA). Results show that the spray cone angle and Sauter mean diameter (SMD) decrease in the air-assist case. On the other hand, both axial and azimuthal velocity increase, while the radial velocity remains the same even under atomizing air condition. It is also found that SMD increases along the axial and radial directions for both cases. Analysis of the histogram data shows that the transport of part of the smaller drops from the outer region to the central region is the key process responsible for the SMD increase downstream. The drop transport phenomenon is further supported by the drop number density increase and higher velocity fluctuation at the spray central region in the downstream region. Comparison of the velocity profiles for both cases also shows that the transition length from a wake to a jet profile is shorter in the air-assist case. Furthermore, the axial, radial, and azimuthal velocity fluctuations of the dispersed phase (u', v', w') increase in both the central region and the spray sheet in the air-assist case. However, it is found that this increase is due to the interaction between the droplet and the gas phases in the spray sheet but not due the velocity gradient mechanism as has been widely adapted in the shear layer flow problem.

CITED BY
  1. Lee Sam Goo, Rho Byung Joon, Atomization characteristics in pneumatic counterfiowing internal mixing nozzle, KSME International Journal, 14, 10, 2000. Crossref

  2. Li Xianguo, Shen Jihua, Experimental study of sprays from annular liquid jet breakup, 36th AIAA Aerospace Sciences Meeting and Exhibit, 1998. Crossref

  3. Mostafa Abdu, Characteristics of Sprays Produced by a High Shear Atomizer, 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2004. Crossref

  4. Lee Sam, Rho Byung, Jung Jae, Song Kyu, Turbulent disintegration characteristics in twin-fluid counterswirling atomizer, 39th Aerospace Sciences Meeting and Exhibit, 2001. Crossref

  5. Li Xianguo, Shen Jihua, Experimental Study of Sprays from Annular Liquid Jet Breakup, Journal of Propulsion and Power, 15, 1, 1999. Crossref

  6. Das Mithun, Chatterjee Souvick, Mukhopadhyay Achintya, Sen Swarnendu, Experimental Investigation of a Hollow Cone Spray Using Laser Diagnostics, Journal of Engineering for Gas Turbines and Power, 136, 7, 2014. Crossref

  7. Fu H, Li Xianguo, Prociw L, Hu T, Experimental Investigation on the Breakup of Annular Liquid Sheets in Two Co-flowing Airstreams, 1st International Energy Conversion Engineering Conference (IECEC), 2003. Crossref

Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain