Radial rasis function for non-matching mesh interpolation in parallel solving FSI problem. (28th March 2019)

• Record Type: Journal Article
• Authors: Kopysov, Sergey; Kuzmin, Igor; Novikov, Alexander; Nedozhogin, Nikita; Tonkov, Leonid
• Is Part Of: International journal of engineering systems modelling and simulation. Volume 11:Number 1(2019)
• Page Start: 19
• Page End: 25
• Publication Date: 2019-03-28
• Subjects: parallel computing -- hybrid HPC platforms -- fluid-structure interaction -- FSI -- radial basis functions -- RBF -- layer-by-layer partitioning; Engineering systems -- Computer simulation -- Periodicals; Engineering systems -- Mathematical models -- Periodicals; 620.0042
• Languages: English
• ISSNs: 1755-9758

Abstract

In strongly coupled fluid-structure interaction simulations, the fluid dynamics and solid dynamics problems are solved independently on their own meshes. Therefore, it becomes necessary to interpolate the physical properties (pressure, displacement) across two meshes. In the present paper, we propose to accelerate the interpolation process by the method of radial basis functions using the matrix-free solution of the system of equations on a GPU. Also, we reduce the number of equations in the system by using an adaptive algorithm for choosing interpolation points.