Open AccessA new fluid structure coupling
Author(s) -
Nicolas Aquelet,
Benjamin Tutt
Publication year - 2007
Publication title -
european journal of computational mechanics
Language(s) - English
Resource type - Journals
eISSN - 2642-2085
pISSN - 2642-2050
DOI - 10.13052/remn.16.521-536
Subject(s) - porosity , finite element method , lagrangian , euler's formula , aerodynamics , coupling (piping) , flow (mathematics) , aerospace , permeability (electromagnetism) , fluid dynamics , computational fluid dynamics , fluid–structure interaction , mechanics , mathematics , structural engineering , engineering , mechanical engineering , mathematical analysis , geometry , physics , aerospace engineering , geotechnical engineering , membrane , biology , genetics
The modelling of parachutes at Irvin Aerospace Inc. was based on the penalty Euler-Lagrange coupling method to compute the interaction between an Arbitrary Lagrange Euler formulation for the air flow and an updated Lagrangian finite element formulation for the canopy dynamics. This approach did not permit the effect of fabric porosity to be accounted for. In this paper, a new porosity Euler-Lagrange coupling models the fabric permeability by assessing the interaction forces based on the Ergun porous flow model. This paper provides validations for the technique when considering parachute applications and discusses the interest of this development to the parachute designer.