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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Mesh-free particle modelling of air-water interaction
Mesh-free particle modelling of air-water interaction
Author : AHMAD SHAKIBAEINIA(1)
ABSTRACT
Air-water interaction is encountered in many areas of water and hydraulic engineering. Air entrainment in hydraulic
structures, sea-atmosphere interaction through wave break, and bubble plumes in water and wastewater treatment plants
are only few examples of the common occurrence of air-water interaction. Due to the complex nature of the air-water
multiphase systems, which is characterized by large interfacial deformation/ fragmentation and large density discontinuity,
they are still beyond the capabilities of the conventional (mesh-based) numerical methods for many applications. Recent
developments in a new and revolutionary generation of numerical methods, the mesh-free Lagrangian (particle) methods,
have provided a promising opportunity to overcome such limitations for the robust simulation of large interfacial
deformations/fragmentations, involved in air-water interaction. This study will develop a mesh-free particle method based
on the weakly-compressible Moving Particle Semi-implicit (WC-MPS) formulation (developed by the author) for modelling
of air-water interaction. The required algorithms are developed to stabilize the method for large interfacial discontinuities
and highly localized surface tension forces. The final model is validated using the air-water interaction benchmarks cases
and then is applied for study of air-water interaction in hydraulic jump.
File Size : 1,332,044 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 13/08/2015
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