Analysis of the oscillatory behavior of van der Waals fluid droplets under microgravity conditions using the Smoothed Particle Hydrodynamics method

Authors

DOI:

https://doi.org/10.5902/2179460X33534

Keywords:

Oscillation, Péclet number, Reynolds number, Aspect ratio, Smoothed Particle Hydrodynamics

Abstract

In the present work, the Smoothed Particle Hydrodynamics method (SPH) is employed in the modeling of a two-dimensional drop formation problem, without an external atmosphere, using a van der Waals fluid. In addition, influences of Reynolds number, initial aspect ratio and Péclet number on drops oscillatory behavior are studied in open space conditions with zero gravity assumption. In view of the most recent researches in drops formation field using the SPH method, a hyperbolic kernel is applied to all simulations in order to ensure uniform drops liquid formation, i.e., without particle agglomeration. Through the usage of this smoothing function the tensile instability is reduced, avoiding unnecessary numerical treatments.

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Author Biographies

Géssica Ramos da Silva, Universidade do Estado do Rio de Janeiro – UERJ, Rio de Janeiro, RJ

Doutoranda em Modelagem Computacional pela Universidade do Estado do Rio de Janeiro

Maicon de Paiva Torres, Universidade do Estado do Rio de Janeiro – UERJ, Rio de Janeiro, RJ

Mestrado em Modelagem Computacional pela Universidade do Estado do Rio de Janeiro

Marciana Lima Góes, Universidade do Estado do Rio de Janeiro – UERJ, Rio de Janeiro, RJ

Doutora em Modelagem Computacional pela Universidade do Estado do Rio de Janeiro (2016)

Helio Pedro Amaral Souto, Universidade do Estado do Rio de Janeiro – UERJ, Rio de Janeiro, RJ

Professor Titular da Universidade do Estado do Rio de Janeiro

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Published

2019-07-16

How to Cite

Silva, G. R. da, Torres, M. de P., Góes, M. L., & Souto, H. P. A. (2019). Analysis of the oscillatory behavior of van der Waals fluid droplets under microgravity conditions using the Smoothed Particle Hydrodynamics method. Ciência E Natura, 41, e9. https://doi.org/10.5902/2179460X33534

Issue

Section

Mathematics