Abstract
The article deals with the design and testing of a computational model for multi-body contact of deformable bodies in the flowing fluid. The computational model will be designed to allow easy modify the impact area of deformable bodies and their shape. The computational model must allow the application of an endless cycle of bodies impact with the possibility of restarting and calculating the following time intervals for collision of bodies.
Highlights
The article deals with the design and testing of a computational model for multi-body contact of deformable bodies in the flowing fluid
If we consider a possible contact among all bodies in the solved task, a number of contact pairs will be determined according to the relation P = (n-1)2, where n is the number of all bodies in the contact problem
The designed computing model has following properties from the standpoint of a solution of a task of multi-body contact of bodies in the flowing fluid: - The number of iterations of the Newton-Raphson method for a solution of a contact task in one time step was within the interval 3 to 25 iterations, exceptionally and more iterations were necessary. - The number of iteration for finding the balance of a solution of interaction of a construction of a body with fluid ranged within the interval 2 to 30 outer iterations of AMG solver, in rare cases the model of flow did not converge even by 250 iterations
Summary
Modelling of a multi-body contact is a computationally demanding task. The computational difficulty of a model increases with a number of bodies that may come into contact. Computational models for solving of flowing fluids require a fine mesh of elements, elements must be sufficiently small so that a flow in the boundary layer close to a body surface would be possible to solve. Both groups of computational models, contact tasks and flow, belong to a group of models with a high demand on computational means and time [4,5,6,7,8,9]. Active forces determined from pressure on limits of bodies are transferred from the model of the flow into the structural model
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
