A remeshed vortex method for mixed rigid/soft body fluid–structure interaction

We outline a 2D algorithm for solving incompressible flow–structure interaction problems mixed rigid/soft body representations, within consistent framework based on the remeshed vortex method. adopt one-continuum formulation to represent both solid and fluid phases an Eulerian grid, separated by diffuse interface. Rigid solids are treated using Brinkman penalization while inverse map technique is used obtain elastic stresses in hyperelastic phase. test our solver against number of benchmark problems, which demonstrate physical accuracy first second order convergence space time. Benchmarks complemented additional investigations that illustrate ability numerical scheme capture essential fluid–structure phenomena across variety scenarios involving internal muscular actuation, self propulsion, multi-body contact, heat transfer rectified viscous streaming effects. Through these illustrations, we showcase robustly deal with different constitutive models boundary conditions, solve disparate multi-physics achieve faster time-to-solutions sidestepping CFL time step restrictions.