Numerical study of internal nozzle flow in simplex atomizer is now well established to represent features of the flow such as turbulence, swirl, and interface between phases. However, an attempt is still needed to introduce an optimum method to capture the interface between liquid and gas with satisfactory level of sharpness. Besides, a detailed study must be dedicated to quantify the influence of surface tension force on evolution of interface shape and flow variables and to determine the necessity of inclusion of this force in molding of this particular type of flow. In the present study RNG K-ε model has been used in Fluent 6.3 to compare performance of four interface schemes and introduce an optimum method in terms of computational effort and grid size requirement. Later, combination of the CSF model, RNG K-ε model and Implicit scheme has been used to introduce a threshold Weber number below which inclusion of surface tension will considerably influence the flow field during intermediate time steps.
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ASME 2012 International Mechanical Engineering Congress and Exposition
November 9–15, 2012
Houston, Texas, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4523-3
PROCEEDINGS PAPER
An Optimum Method of Capturing Interface and a Threshold Weber Number for Inclusion of Surface Tension Force in Simulation of Nozzle Internal Flow in Pressure Swirl Atomizers
Ahmadreza Abbasi Baharanchi,
Ahmadreza Abbasi Baharanchi
Florida International University, Miami, FL
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Amer Nordin Darus,
Amer Nordin Darus
Technological University of Malaysia, Johor Bahru, Johor, Malaysia
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Manizheh Ansari,
Manizheh Ansari
Islamic Azad University of Shahrood, Shahrood, Iran
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Ehsan Abbasi Baharanchi
Ehsan Abbasi Baharanchi
Islamic Azad University of Najafabad, Isfahan, Iran
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Ahmadreza Abbasi Baharanchi
Florida International University, Miami, FL
Amer Nordin Darus
Technological University of Malaysia, Johor Bahru, Johor, Malaysia
Manizheh Ansari
Islamic Azad University of Shahrood, Shahrood, Iran
Ehsan Abbasi Baharanchi
Islamic Azad University of Najafabad, Isfahan, Iran
Paper No:
IMECE2012-87128, pp. 135-146; 12 pages
Published Online:
October 8, 2013
Citation
Abbasi Baharanchi, A, Nordin Darus, A, Ansari, M, & Abbasi Baharanchi, E. "An Optimum Method of Capturing Interface and a Threshold Weber Number for Inclusion of Surface Tension Force in Simulation of Nozzle Internal Flow in Pressure Swirl Atomizers." Proceedings of the ASME 2012 International Mechanical Engineering Congress and Exposition. Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D. Houston, Texas, USA. November 9–15, 2012. pp. 135-146. ASME. https://doi.org/10.1115/IMECE2012-87128
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