Formation of gas-in-liquid compound drops

Shy Ya Lin, Sheng Lin Chiu, Rong Horng Chen, Jen Yung Pu, Ta-Hui Lin

Research output: Contribution to conferencePaper

Abstract

An experimental method to generate stable, controllable and periodic gas-in-diesel compound drops by coaxial compound jets is presented. The compound jet can be categorized into bubbling and jetting regimes in the upstream or into bubbling and compound drop regimes in the downstream. The characteristics of a compound jet nozzle strongly depend on the actual sizes of the needles and the flowrates. According to experimental results, steady and periodical compound drops could be produced for Weber number less than 7 and velocity ratio within 0.2 ∼ 0.45. As the outer liquid velocity increases, the compound drop generation frequency goes down. In the compound drop regime, the satellite grows with increasing velocity ratio.

Original languageEnglish
Publication statusPublished - 2006 Dec 1
Event10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006 - Kyoto, Japan
Duration: 2006 Aug 272006 Sep 1

Other

Other10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006
CountryJapan
CityKyoto
Period06-08-2706-09-01

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Gases
Liquids
Needles
Nozzles
Satellites

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Lin, S. Y., Chiu, S. L., Chen, R. H., Pu, J. Y., & Lin, T-H. (2006). Formation of gas-in-liquid compound drops. Paper presented at 10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006, Kyoto, Japan.
Lin, Shy Ya ; Chiu, Sheng Lin ; Chen, Rong Horng ; Pu, Jen Yung ; Lin, Ta-Hui. / Formation of gas-in-liquid compound drops. Paper presented at 10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006, Kyoto, Japan.
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author = "Lin, {Shy Ya} and Chiu, {Sheng Lin} and Chen, {Rong Horng} and Pu, {Jen Yung} and Ta-Hui Lin",
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Lin, SY, Chiu, SL, Chen, RH, Pu, JY & Lin, T-H 2006, 'Formation of gas-in-liquid compound drops', Paper presented at 10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006, Kyoto, Japan, 06-08-27 - 06-09-01.

Formation of gas-in-liquid compound drops. / Lin, Shy Ya; Chiu, Sheng Lin; Chen, Rong Horng; Pu, Jen Yung; Lin, Ta-Hui.

2006. Paper presented at 10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006, Kyoto, Japan.

Research output: Contribution to conferencePaper

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T1 - Formation of gas-in-liquid compound drops

AU - Lin, Shy Ya

AU - Chiu, Sheng Lin

AU - Chen, Rong Horng

AU - Pu, Jen Yung

AU - Lin, Ta-Hui

PY - 2006/12/1

Y1 - 2006/12/1

N2 - An experimental method to generate stable, controllable and periodic gas-in-diesel compound drops by coaxial compound jets is presented. The compound jet can be categorized into bubbling and jetting regimes in the upstream or into bubbling and compound drop regimes in the downstream. The characteristics of a compound jet nozzle strongly depend on the actual sizes of the needles and the flowrates. According to experimental results, steady and periodical compound drops could be produced for Weber number less than 7 and velocity ratio within 0.2 ∼ 0.45. As the outer liquid velocity increases, the compound drop generation frequency goes down. In the compound drop regime, the satellite grows with increasing velocity ratio.

AB - An experimental method to generate stable, controllable and periodic gas-in-diesel compound drops by coaxial compound jets is presented. The compound jet can be categorized into bubbling and jetting regimes in the upstream or into bubbling and compound drop regimes in the downstream. The characteristics of a compound jet nozzle strongly depend on the actual sizes of the needles and the flowrates. According to experimental results, steady and periodical compound drops could be produced for Weber number less than 7 and velocity ratio within 0.2 ∼ 0.45. As the outer liquid velocity increases, the compound drop generation frequency goes down. In the compound drop regime, the satellite grows with increasing velocity ratio.

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Lin SY, Chiu SL, Chen RH, Pu JY, Lin T-H. Formation of gas-in-liquid compound drops. 2006. Paper presented at 10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006, Kyoto, Japan.