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Authors: Nobuhiko Mukai ; Erika Matsui and Youngha Chang

Affiliation: Computer Science, Tokyo City University, 1-28-1 Tamazutsumi, Setagaya, Tokyo and Japan

Keyword(s): Particle Method, Viscoelastic Fluid, Spinnability, Cauchy’s Equation of Motion, Deviatoric Stress.

Related Ontology Subjects/Areas/Topics: Complex Systems Modeling and Simulation ; Computer Simulation Techniques ; Fluid Dynamics ; Simulation and Modeling ; Simulation Tools and Platforms

Abstract: One of the most challenging issues is to simulate and visualize liquid behavior, especially viscoelastic fluid, which has both characteristics of viscosity and elasticity. Although Newtonian fluid, which is represented by water, is generally analyzed with the governing equations, which are Navier-Stokes equation and equation of continuity. However, viscoelastic behavior is so complex that there is no established governing equation such as Newton’s equation of motion and Navier-Stokes equation. Some researchers employ Finite Element Method and others develop their own point based methods. In addition, there is a characteristic feature called “Spinnability” in viscoelastic fluid. That is, viscoelastic fluid is stretched so long and shows sudden shrink when the stretched fluid is broken. Then, we have been performing this spinnability simulation based on Cauchy’s equation of motion by modifying the stress term in constitutive equation. In this paper, we report the simulation results on viscoelastic fluid behavior for four kinds of deviatoric stress tensors constructing Cauchy’s equation of motion: only viscosity, only elasticity, linear combination of viscosity and elasticity, and complex modulus of elasticity. (More)

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Paper citation in several formats:
Mukai, N.; Matsui, E. and Chang, Y. (2019). Investigation on Viscoelastic Fluid Behavior by Modifying Deviatoric Stress Tensor. In Proceedings of the 9th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH; ISBN 978-989-758-381-0; ISSN 2184-2841, SciTePress, pages 216-222. DOI: 10.5220/0007788702160222

@conference{simultech19,
author={Nobuhiko Mukai. and Erika Matsui. and Youngha Chang.},
title={Investigation on Viscoelastic Fluid Behavior by Modifying Deviatoric Stress Tensor},
booktitle={Proceedings of the 9th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH},
year={2019},
pages={216-222},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007788702160222},
isbn={978-989-758-381-0},
issn={2184-2841},
}

TY - CONF

JO - Proceedings of the 9th International Conference on Simulation and Modeling Methodologies, Technologies and Applications - SIMULTECH
TI - Investigation on Viscoelastic Fluid Behavior by Modifying Deviatoric Stress Tensor
SN - 978-989-758-381-0
IS - 2184-2841
AU - Mukai, N.
AU - Matsui, E.
AU - Chang, Y.
PY - 2019
SP - 216
EP - 222
DO - 10.5220/0007788702160222
PB - SciTePress