Numerical Simulation of Three-Dimensional Incompressible Fluid Flow in Curved Pipes: FSI Vs CFD

EasyChair Preprint 9459

Abstract

The present paper aims to show the numerical results of an incompressible fluid flow in curved pipes for three-dimensional space using a fluid-structure interaction (FSI) model. A tetrahedral element is employed to discretize the Navier-Stokes equation for a fluid part and the elastic model for the solid domain. Strong coupling is used for FSI iteration to satisfy the balance conditions at the fluid-solid interface. The current approach is firstly validated by comparison of numerical solution with experimental data for a 90-degree curved pipe in the rigid wall using the CFD model. In addition, the pressure wave propagation in a straight tube is used for FSI validation. Then the algorithm is adopted for calculating the FSI method for the 90-degree curved pipe. The comparison of the FSI and CFD model is shown in detail in this curved pipe. The present work can be used for bio-mechanical prediction, such as the blood flow in coronary artery vessels.

Keyphrases: CFD, Incompressible fluid flow, Navier-Stokes equation, curved pipes, fluid-structure interaction

@booklet{EasyChair:9459,
  author    = {Manh Hung Nguyen and Trung Tien Trinh and Duc Quyen Vu and Xuan Tung Ta and Trung Dinh Nguyen and Sang Truong Ha},
  title     = {Numerical Simulation of Three-Dimensional Incompressible Fluid Flow in Curved Pipes: FSI Vs CFD},
  howpublished = {EasyChair Preprint 9459},
  year      = {EasyChair, 2022}}