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Advanced numerical multiphase flow modeling

Grant number: 18/08752-5
Support type:Scholarships abroad - Research
Effective date (Start): August 01, 2018
Effective date (End): July 31, 2019
Field of knowledge:Engineering - Mechanical Engineering - Transport Phenomena
Principal Investigator:Gustavo Carlos Buscaglia
Grantee:Gustavo Carlos Buscaglia
Host: Pablo Marcelo Carrica
Home Institution: Instituto de Ciências Matemáticas e de Computação (ICMC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Local de pesquisa : University of Iowa, United States  
Associated research grant:13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry, AP.CEPID


This project aims at developing advanced models for multiphase flow that account for cavitation effects in liquids with a disperse gas phase. The modeling framework to be developed is basedon an Eulerian multifluid and multigroup approach for the polydisperse bubble-liquidmixture, coupled with the Rayleigh-Plesset equation for the individual bubble dynamics. The host researcher (Prof. Carrica) has done seminal contributions in the area and is now workingon the issue as part of a coordinated effort to reduce uncertainty in technological applications of CFD. Though Eulerian multifluid models already exist, the fast transients with large volume changes that take place in cavitation are outside their range of validity. The problem to be addressed is of great interest for the simulation of many technological systems that range from ship hydrodynamics, especially propellers, to lubricated joints and bearings. During the stay, a parallel project will be launched with Prof. David Stewart on the modeling of biological flows. Specifically, Prof. Stewart's group aims at developing and justifying a model for mucus flow in the airways, an importantissue in certain diseases such as cystic fibrosis.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
JARAMILLO, ALFREDO; BUSCAGLIA, GUSTAVO C. An extended Elrod-Adams model to account for backpressure and blow-by inception. TRIBOLOGY INTERNATIONAL, v. 140, DEC 2019. Web of Science Citations: 0.
BAPPY, MEHEDI; CARRICA, PABLO M.; BUSCAGLIA, GUSTAVO C. Lagrangian statistics of pressure fluctuation events in homogeneous isotropic turbulence. Physics of Fluids, v. 31, n. 8 AUG 2019. Web of Science Citations: 0.
JARAMILLO, ALFREDO; BUSCAGLIA, GUSTAVO C. A stable numerical strategy for Reynolds-Rayleigh-Plesset coupling. TRIBOLOGY INTERNATIONAL, v. 130, p. 191-205, FEB 2019. Web of Science Citations: 0.

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