Advancing Realistic Multiphase CFD: A Combined Level-Set and Moving Mesh Framework for Bubble and Droplet Dynamics in Complex Geometries
Prof. Kike Gutierrez Alvarez (Polytechnic University of Madrid)
Friday 17th January 12:00-13:00 Maths 116
Abstract
Computational Fluid Dynamics (CFD) has emerged as an invaluable tool for
studying multiphase flows, enabling the investigation of physical
phenomena occurring at spatial and temporal scales beyond the reach of
experimental methods. However, the computational demands of these
simulations present significant challenges, where even modest
improvements in numerical efficiency can transform intractable problems
into manageable ones.
This talk focuses on numerical algorithms for optimizing multiphase flow
simulations using single-fluid formulations on three-dimensional
unstructured meshes within a finite-volume framework. We address three
critical challenges in modeling realistic multiphase scenarios: (1)
accurate interface computation with conservation of integral properties,
(2) optimization of computational resources, and (3) robust
representation of complex solid geometries.
Our methodology integrates level-set techniques with adaptive mesh
strategies to efficiently track fluid interfaces while maintaining
numerical stability and accuracy. Throughout the talk, we will
demonstrate the progressive development of a comprehensive numerical
framework, illustrated through practical applications of bubble and
droplet dynamics in intricate geometrical configurations. This approach
bridges the gap between theoretical models and real-world engineering
applications, offering new possibilities for studying multiphase flows
in industrially relevant scenarios.
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