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- Stochastic_Eulerian_Lagrangian_method abstract "In computational fluid dynamics, the Stochastic Eulerian Lagrangian Method (SELM) is an approach to capture essential features of fluid-structure interactions subject to thermal fluctuations while introducing approximations which facilitate analysis and the development of tractable numerical methods. SELM is a hybrid approach utilizing an Eulerian description for the continuum hydrodynamic fields and a Lagrangian description for elastic structures. Thermal fluctuations are introduced through stochastic driving fields. The SELM fluid-structure equations typically used are The pressure p is determined by the incompressibility condition for the fluid The operators couple the Eulerian and Lagrangian degrees of freedom. The denote the composite vectors of the full set of Lagrangian coordinates for the structures. The is the potential energy for a configuration of the structures. The are stochastic driving fields accounting for thermal fluctuations. The are Lagrange multipliers imposing constraints, such as local rigid body deformations. To ensure that dissipation occurs only through the coupling and not as a consequence of the interconversion by the operators the following adjoint conditions are imposedThermal fluctuations are introduced through Gaussian random fields with mean zero and the covariance structure To obtain simplified descriptions and efficient numerical methods, approximations in various limiting physical regimes have been considered to remove dynamics on small time-scales or inertial degrees of freedom. In different limiting regimes, the SELM framework can be related to the immersed boundary method, accelerated Stokesian dynamics, and arbitrary Lagrangian Eulerian method. The SELM approach has been shown to yield stochastic fluid-structure dynamics that are consistent with statistical mechanics. In particular, the SELM dynamics have been shown to satisfy detailed-balance for the Gibbs–Boltzmann ensemble. Different types of coupling operators have also been introduced allowing for descriptions of structures involving generalized coordinates and additional translational or rotational degrees of freedom.".
- Stochastic_Eulerian_Lagrangian_method wikiPageExternalLink j.jcp.2006.11.015.
- Stochastic_Eulerian_Lagrangian_method wikiPageExternalLink mango-selm.
- Stochastic_Eulerian_Lagrangian_method wikiPageID "37914029".
- Stochastic_Eulerian_Lagrangian_method wikiPageRevisionID "581540402".
- Stochastic_Eulerian_Lagrangian_method hasPhotoCollection Stochastic_Eulerian_Lagrangian_method.
- Stochastic_Eulerian_Lagrangian_method subject Category:Computational_fluid_dynamics.
- Stochastic_Eulerian_Lagrangian_method subject Category:Fluid_mechanics.
- Stochastic_Eulerian_Lagrangian_method subject Category:Numerical_differential_equations.
- Stochastic_Eulerian_Lagrangian_method comment "In computational fluid dynamics, the Stochastic Eulerian Lagrangian Method (SELM) is an approach to capture essential features of fluid-structure interactions subject to thermal fluctuations while introducing approximations which facilitate analysis and the development of tractable numerical methods. SELM is a hybrid approach utilizing an Eulerian description for the continuum hydrodynamic fields and a Lagrangian description for elastic structures.".
- Stochastic_Eulerian_Lagrangian_method label "Stochastic Eulerian Lagrangian method".
- Stochastic_Eulerian_Lagrangian_method sameAs m.0p76k23.
- Stochastic_Eulerian_Lagrangian_method sameAs Q7617806.
- Stochastic_Eulerian_Lagrangian_method sameAs Q7617806.
- Stochastic_Eulerian_Lagrangian_method wasDerivedFrom Stochastic_Eulerian_Lagrangian_method?oldid=581540402.
- Stochastic_Eulerian_Lagrangian_method isPrimaryTopicOf Stochastic_Eulerian_Lagrangian_method.