Publication result detail

Application of modified Navier-Stokes equations to determine the unsteady force effects of a heterogeneous liquid

POCHYLÝ, F.; KLAS, R.; FIALOVÁ, S.

Original Title

Application of modified Navier-Stokes equations to determine the unsteady force effects of a heterogeneous liquid

English Title

Application of modified Navier-Stokes equations to determine the unsteady force effects of a heterogeneous liquid

Type

Paper in proceedings (conference paper)

Original Abstract

The article is focused on calculating the force effects of a heterogeneous liquid on pipe walls. The solution is based on the concentration of solid particles. The base fluid is assumed to be incompressible. The solution will apply Euler-Lagrange's solution principle. Two tasks will be solved; with a rigid and a flexible tube wall. The solution will be carried out with non-stationary boundary conditions that were determined experimentally. Interaction of a heterogeneous fluid with a flexible wall assumes its deformation. The force effects will be solved by two methods; FSI simulation using ANSYS FEA solvers and CFD solvers ANSYS Fluent and using Navier-Stokes equations by direct integration through liquid volume. In this case, the unsteady term of the Navier-Stokes equations will be modified so that the Gauss Ostrogradsky theorem can be used to calculate the force. At the end, the force effects on the rigid and compliant wall will be compared with the unsteady turbulent flow of the heterogeneous liquid.

English abstract

The article is focused on calculating the force effects of a heterogeneous liquid on pipe walls. The solution is based on the concentration of solid particles. The base fluid is assumed to be incompressible. The solution will apply Euler-Lagrange's solution principle. Two tasks will be solved; with a rigid and a flexible tube wall. The solution will be carried out with non-stationary boundary conditions that were determined experimentally. Interaction of a heterogeneous fluid with a flexible wall assumes its deformation. The force effects will be solved by two methods; FSI simulation using ANSYS FEA solvers and CFD solvers ANSYS Fluent and using Navier-Stokes equations by direct integration through liquid volume. In this case, the unsteady term of the Navier-Stokes equations will be modified so that the Gauss Ostrogradsky theorem can be used to calculate the force. At the end, the force effects on the rigid and compliant wall will be compared with the unsteady turbulent flow of the heterogeneous liquid.

Keywords

heterogeneous liquid, force effects, flow

Key words in English

heterogeneous liquid, force effects, flow

Authors

POCHYLÝ, F.; KLAS, R.; FIALOVÁ, S.

RIV year

2021

Released

28.06.2019

Book

EFM18 – Experimental Fluid Mechanics 2018

ISBN

2100-014X

Periodical

EPJ Web of Conferences

Volume

213

State

French Republic

Pages from

1

Pages to

6

Pages count

6

URL

https://www.epj-conferences.org/articles/epjconf/abs/2019/18/epjconf_efm18_02068/epjconf_efm18_02068.html

BibTex

@inproceedings{BUT170606,
  author="František {Pochylý} and Roman {Klas} and Simona {Fialová}",
  title="Application of modified Navier-Stokes equations to determine the unsteady force effects of a heterogeneous liquid",
  booktitle="EFM18 – Experimental Fluid Mechanics 2018",
  year="2019",
  journal="EPJ Web of Conferences",
  volume="213",
  pages="1--6",
  doi="10.1051/epjconf/201921302068",
  issn="2100-014X",
  url="https://www.epj-conferences.org/articles/epjconf/abs/2019/18/epjconf_efm18_02068/epjconf_efm18_02068.html"
}