Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.2017016898
pages 533-551

COMPUTATIONAL MODELING OF GAS-BUBBLE FORMATION THROUGH A SINGLE SUBMERGED ORIFICE

Vijay Kumar Prasad
Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Mechanical Engineering Research Institute, Durgapur-713209, India; Advanced Design and Analysis Group, CSIR-Central Mechanical Engineering Research Institute Durgapur-713209, India
Satya Prakash Singh
Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Mechanical Engineering Research Institute, Durgapur-713209, India; Surface Engineering and Tribology Group, CSIR-Central Mechanical Engineering Research Institute Durgapur-713209, India
Dipankar Chatterjee
Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Mechanical Engineering Research Institute, Durgapur-713209, India; Advanced Design and Analysis Group, CSIR-Central Mechanical Engineering Research Institute Durgapur-713209, India

Краткое описание

A two-dimensional numerical simulation is carried out to analyze the dynamics of gas-bubble formation from a single submerged orifice in an immiscible Newtonian liquid under the condition of constant gas inflow rate using a finite volume based commercial Computational Fluid Dynamics (CFD) solver ANSYS Fluent. Two conditions for the ambient liquid are considered, namely the liquid in quiescent condition and the liquid as a co-flowing stream with the gas. The full cycle from bubble formation to its detachment and the corresponding dynamics are simulated by using both the Volume of Fluid method (VOF) and Coupled Level Set and Volume of Fluid method (CLSVOF). Although both are front capturing techniques of Eulerian family, they possess some distinct properties in themselves. The CLSVOF method combines the advantages of the level set method with that of the Volume of Fluid method. It is observed that the CLSVOF method is more successful in predicting the interface sharpness in comparison to the VOF method only. The study includes: (i) time sequence profile of bubble formation to clearly represent bubble growth, neck formation, and bubble breakup at given Weber (We), Reynolds (Re), Bond (Bo) numbers, and liquid to gas mean velocity ratio (vr); (ii) bubble growth history for different vr and at constant Re,We, and Bo; (iii) comparison between results obtained by VOF and CLSVOF at given vr, We, Re, and Bo; and (iv) bubble size and bubble formation time, and finally the bubble coalescence phenomenon and technique for its inhibition.


Articles with similar content:

Three dimensional numerical simulation of a bubble rising in viscous liquid using OpenFOAM
Second Thermal and Fluids Engineering Conference, Vol.51, 2017, issue
Malay Kumar Das, Babu R., Ankit Verma
INVESTIGATION OF BUBBLE DYNAMICS WITH SINGLE AND DOUBLE GAS INLET(S) IN A RECTANGULAR CONTAINER USING OPENFOAM
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Sarath Raj, J. S. Jayakumar
Optimization of Structure of Capital Investments for Investment Project of Enterprise
Journal of Automation and Information Sciences, Vol.32, 2000, issue 4
Yuliya V. Bondarenko, Mikhail Z. Zgurowsky
TURBULENT WATER-AIR INTERACTION AND MIXING WITHIN A RECTANGULAR ENCLOSURE
First Thermal and Fluids Engineering Summer Conference, Vol.4, 2015, issue
Mert Yucetepe, Majid Molki
Thermal and Thermodynamic analyses of impingement cooling system with turbulent jet arrays
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Prasanth Anand Kumar Lam, K. Arul Prakash