AC-CBS-Based Partitioned Semi-Implicit Coupling Algorithm for Fluid-Structure Interaction Using Stabilized Second-Order Pressure Scheme. (27th March 2017)

• Record Type: Journal Article
• Authors: He, Tao; Zhang, Kai; Wang, Tong
• Is Part Of: Communications in computational physics. Volume 21:Number 5(2017:May)
• Page Start: 1449
• Page End: 1474
• Publication Date: 2017-03-27
• Subjects: 35Q30, -- 65M22, -- 65M60, -- 74F10, -- 76M10; Fluid-structure interaction, -- semi-implicit coupling, -- CBS, -- artificial compressibility, -- second order; Mathematical physics -- Data processing -- Periodicals; Physics -- Data processing -- Periodicals; 530.150285
• DOI: 10.4208/cicp.OA-2016-0106
• Languages: English
• ISSNs: 1815-2406

Abstract

Abstract: We analyze in this paper the pressure splitting scheme of a partitioned semi-implicit coupling algorithm for fluid-structure interaction (FSI) simulation. The semi-implicit coupling algorithm is developed on the ground of the artificial compressibility characteristic-based split (AC-CBS) scheme that serves not only for the fluid subsystem but also for the global FSI system. As the dual-time stepping procedure recommended for quasi-incompressible flows is incorporated into the implicit coupling stage, the fluctuating pressure may be unusually susceptible to the AC coefficient. Moreover, it is not trivial to devise an optimal AC formulation for pressure estimation. Instead, we consider a stabilized second-order pressure splitting scheme in the AC-CBS-based partitioned semi-implicit coupling algorithm. Computer simulation of a benchmark FSI experiment demonstrates that good agreement is exposed between the available and present data.