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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Void fraction predictive method based on the minimum kinetic energy

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Author(s):
Kanizawa, Fabio Toshio [1] ; Ribatski, Gherhardt [1]
Total Authors: 2
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Mech Engn, Heat Transfer Res Grp, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 38, n. 1, p. 209-225, JAN 2016.
Web of Science Citations: 8
Abstract

This paper presents a new void fraction predictive method for two-phase gas-liquid flows inside tubes for horizontal and vertical upward flows based on the principle of minimum kinetic energy. Non-uniformities of the velocity profiles are taken into account in the development of the method through empirical factors defined by the momentum coefficients ratio. A regression analysis to correlate the momentum coefficients ratio based on a broad databank gathered from the literature covering horizontal and vertical upward flows is performed. The proposed method has proven more accurate than the current methods available in the literature, as it predicts 92 and 85 % of the experimental data for horizontal and vertical saturated flows, respectively, within a +/- 10 % error band. The experimental database includes results for saturated flow and covers mass velocities ranging from 70 to 800 kg/m(2) s and from 37 to 4500 kg/m(2) s and tube internal diameters from 0.5 to 13.8 mm and 6 to 89 mm for horizontal and vertical upward flows, respectively. (AU)

FAPESP's process: 10/20670-2 - Theoretical and experimental study of void fraction and flow pattern induced vibration on tubes bundle
Grantee:Fabio Toshio Kanizawa
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/06902-9 - Theoretical and experimental study of flow induced vibration during external two-phase flow across tube bundle
Grantee:Fabio Toshio Kanizawa
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/00854-5 - Characterization of external two-phase flow across tube bundles
Grantee:Fabio Toshio Kanizawa
Support type: Scholarships abroad - Research Internship - Post-doctor