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Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180&#176; Curved Artery Test Section
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Wavelet Element Modelling for Inviscid Fluid-Solid Coupling Problem based on Partitioned Approach.

Zhi-Bo Yang1,2, Hao-Qi Li1,2, Bai-Jie Qiao1,2

  • 1School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China.

Materials (Basel, Switzerland)
|August 23, 2020
PubMed
Summary
This summary is machine-generated.

A new wavelet element method simplifies fluid-solid modeling on fixed grids, offering better handling of complex shapes. This approach ensures consistency between fluid and solid regions, providing a viable alternative for coupled modeling.

Keywords:
fluid–solid couplingpartitioned approachwave propagationwavelet element

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Area of Science:

  • Computational fluid dynamics
  • Solid mechanics
  • Numerical analysis

Background:

  • Traditional fluid-solid modeling methods face challenges with complex geometries.
  • Existing wavelet finite element methods may have limitations in handling diverse shapes.

Purpose of the Study:

  • Introduce a simplified numerical formulation for fluid-solid modeling using fixed grids.
  • Develop a wavelet element method capable of handling more complex shapes than classical approaches.
  • Ensure consistency between fluid and solid regions through a novel interface design.

Main Methods:

  • A wavelet element method is employed for fluid-solid modeling on fixed grids.
  • A damping-like interface based on wavelet elements is designed for inter-region consistency.
  • A partitioned approach using Jacobi iteration and pseudo-parallel calculations is applied in temporal and spatial domains.

Main Results:

  • The proposed method demonstrates the ability to handle complex shapes effectively.
  • The damping-like interface ensures seamless integration between fluid and solid domains.
  • Numerical convergence analyses validate the method's stability and accuracy.

Conclusions:

  • The developed wavelet element method offers a simplified and effective approach to fluid-solid modeling.
  • This method presents a robust alternative for complex fluid-solid coupling simulations.
  • The technique shows potential for broader applications in computational engineering.