Space-Time Interface-Tracking Computations with Contact Between Solid Surfaces

Abstract

To address the computational challenges associated with contact between moving solid surfaces, such as those in cardiovascular fluid{structure interaction (FSI), parachute FSI, and flapping-wing aerodynamics, we introduce a space{time (ST) interface-tracking method that can deal with topology change (TC). In cardiovascular FSI, our primary target is heart valves. The method is a new version of the Deforming-Spatial-Domain/Stabilized ST (DSD/SST) method, and we call it ST-TC. It includes a master{slave system that maintains the connectivity of the \parent" mesh when there is contact between the moving interfaces. It is an e efficient, practical alternative to using unstructured ST meshes, but without giving up on the accurate representation of the interface or consistent representation of the interface motion. We explain the method with conceptual examples and present 2D and 3D test computations with models representative of the classes of problems we are targeting.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2014
Accession Number
ADA617813

Entities

People

  • Austin J. Buscher

Organizations

  • Rice University

Tags

Communities of Interest

  • Air Platforms
  • Autonomy

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Computational Fluid Dynamics
  • Engineering
  • Equations
  • Flow Fields
  • Flow Rate
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Heart Valves
  • Leading Edges
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Mechanics
  • Micro Air Vehicles

Readers

  • Computational Fluid Dynamics (CFD)

Technology Areas

  • Space