A semi-implicit immersed boundary method for simulating viscous flow-induced sound with moving boundaries
نویسندگان
چکیده
منابع مشابه
An immersed interface method for simulating the interaction of a fluid with moving boundaries
In the immersed interface method, boundaries are represented as singular force in the Navier–Stokes equations, which enters a numerical scheme as jump conditions. Recently, we systematically derived all the necessary spatial and temporal jump conditions for simulating incompressible viscous flows subject to moving boundaries in 3D with second-order spatial and temporal accuracy near the boundar...
متن کاملA Simplified Curved Boundary Condition in Stationary/Moving Boundaries for the Lattice Boltzmann Method
Lattice Boltzmann method is one of computational fluid dynamic subdivisions. Despite complicated mathematics involved in its background, end simple relations dominate on it; so in comparison to the conventional computational fluid dynamic methods, simpler computer programs are needed. Due to its characteristics for parallel programming, this method is considered efficient for the simulation of ...
متن کاملA sharp interface immersed boundary method for compressible viscous flows
An immersed boundary method for computing viscous, subsonic compressible flows with complex shaped stationary immersed boundaries is presented. The method employs a ghost-cell technique for imposing the boundary conditions on the immersed boundaries. The current approach leads to a sharp representation of the immersed boundaries, a property that is especially useful for flow simulations at high...
متن کاملUniform Error Estimates for Navier-stokes Flow with a Moving Boundary Using the Immersed Interface Method
We prove that uniform accuracy of almost second order can be achieved with a finite difference method applied to Navier-Stokes flow at low Reynolds number with a moving boundary, or interface, creating jumps in the velocity gradient and pressure. Difference operators are corrected to O(h) near the interface using the immersed interface method, adding terms related to the jumps, on a regular gri...
متن کاملOn the numerical oscillation of the direct-forcing immersed-boundary method for moving boundaries
In recent years, the immersed-boundary method that is based on the structured mesh has gained considerable popularity in computational fluid dynamics for solving complex and moving-boundary problems. Despite its wide applications, so far there is not a unified definition of the method, possibly because there are many variations in the existing implementations. Here we follow the classification ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computer Methods in Applied Mechanics and Engineering
سال: 2021
ISSN: 0045-7825
DOI: 10.1016/j.cma.2020.113438