Mass Separation Regimes for Shear-Driven Liquid Film at Expanding Corners
Abstract
Separation of gas-driven liquid film from an expanding corner is encountered in many applications such as port fuel injection (PFI) and air-fuel mixing in jet engines. However, physical insight about the liquid mass separation from expanding corners is very limited. Experimental studies show two different flow regimes in shear-driven flows: flow regime where there is no large amplitude waves at the interface and flow regime with large amplitude waves at the interface. Correspondingly liquid mass separation is shown to occur due to two effects: uniform film inertia and large amplitude waves at the interface. In absence of large amplitude waves for large corner angle, the liquid mass separation could occur purely due to uniform film inertia. Two distinct correlations have been proposed for each flow regime based on operating parameters. The controlling parameters, which affect the liquid mass separation at the corner are gas and liquid Reynolds numbers, liquid film properties, and corner angle. Additionally, the proposed correlations would probably need a larger dataset for a robust consistency evaluation.
Recommended Citation
Z. Sadeghizadeh et al., "Mass Separation Regimes for Shear-Driven Liquid Film at Expanding Corners," ICLASS 2021 - 15th Triennial International Conference on Liquid Atomization and Spray Systems, International Conference on Liquid Atomization and Spray Systems, Aug 2021.
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
Large Amplitude Waves (LAW); liquid film separation; shear-driven liquid film
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 International Conference on Liquid Atomization and Spray Systems , All rights reserved.
Publication Date
31 Aug 2021
