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ARTICLE
NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE
Roshan Devidas Bhagata,*
, Samir J. Deshmukhsup>b
a Ph.D. Scholar, Prof. Ram Meghe Institute of Technology and Research, Badnera-Amravati, Maharashtra, 444701, India
b Associate Professor, Prof. Ram Meghe Institute of Technology and Research, Badnera-Amravati, Maharashtra, 444701, India
* Corresponding author. Email: roshan.bhagat25@gmail.com
Frontiers in Heat and Mass Transfer 2022, 19, 1-11. https://doi.org/10.5098/hmt.19.14
Abstract
Numerical analysis of liquid vapor slug flow in a vertically placed U-shaped closed capillary tube is carried out with family of hydrocarbon fluid like
Acetone, Ethanol, Methanol and Pentane. A 3D computational domain has been developed for vertically placed U-shaped capillary tube sealed at both
end with three small turns in evaporator section, two small and one large turn in condenser section. The diameter of vertically placed U-shaped capillary
tube is taken as 2mm. The volume of fluid (VOF) approach, suitable model of K-epsilon is used to predict the behavior of liquid vapor slug flow along
the wall of capillary tube. Fill ratio (FR) of 61% is used with the working fluid that occupies 61% of the total volume of tube. At the start of iteration
process the evaporator and condenser temperature are set to 343 K and 298 K. The liquid, vapor slug flow inside the capillary tube and flow patterns
are observed for Acetone, Ethanol, Methanol and Pentane. The contours of liquid volume fraction and wall temperature are observed along the length
of tube. Alternate liquid and vapor slug formation and the complex phenomenon of evaporation and condensation process are visualized in the analysis.
The aim of the numerical analysis is to find the suitable working fluid, models, simulation settings that accurately predict the phase change phenomenon
and to investigate the effect of liquid vapor slug flow, changing simulation parameters on the performance of U-shaped capillary tube.
Keywords
Cite This Article
APA Style
Bhagat
, R.D., Deshmukhsup>b, S.J. (2022). NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE. Frontiers in Heat and Mass Transfer, 19(1), 1-11. https://doi.org/10.5098/hmt.19.14
Vancouver Style
Bhagat
RD, Deshmukhsup>b SJ. NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE. Front Heat Mass Transf. 2022;19(1):1-11 https://doi.org/10.5098/hmt.19.14
IEEE Style
R.D. Bhagat
and S.J. Deshmukhsup>b, "NUMERICAL ANALYSIS TO PREDICT THE BEHAVIOR OF LIQUID VAPOR SLUG FLOW IN VERTICALLY PLACED U-SHAPED CLOSED CAPILLARY TUBE," Front. Heat Mass Transf., vol. 19, no. 1, pp. 1-11. 2022. https://doi.org/10.5098/hmt.19.14