A Novel Level Set-Based Immersed-Boundary Method for CFD Simulation of Moving-Boundary Problems

2013 ◽  
Vol 63 (4) ◽  
pp. 304-326 ◽  
Author(s):  
Mukul Shrivastava ◽  
Amit Agrawal ◽  
Atul Sharma
Keyword(s):  
Level Set ◽  
Immersed Boundary Method ◽  
Moving Boundary ◽  
Cfd Simulation ◽  
Immersed Boundary ◽  
Moving Boundary Problems ◽  
Boundary Problems ◽  
Boundary Method

Immersed Boundary Method for CFD Analysis of Moving Boundary Problems in OpenFOAM

2015 ◽  
Author(s):  
Krishna M. Singh ◽  
Norihiko Nonaka ◽  
U. Oh
Keyword(s):  
Immersed Boundary Method ◽  
Moving Boundary ◽  
Numerical Solutions ◽  
Numerical Results ◽  
Immersed Boundary ◽  
Moving Boundary Problems ◽  
Boundary Problems ◽  
Immersed Surfaces ◽  
Computational Performance ◽  
Boundary Method

CFD simulation of hydraulic equipments involving moving boundary components is really challenging due to difficulty in maintaining a good quality mesh essential for obtaining accurate numerical solutions. To deal with these problems, commercial codes such as Ansys CFX provide the option of mesh morphing which must be used in conjunction with pre-defined multiple grid configurations to account for changing flow domain. In contrast to this approach, immersed boundary method (IBM) provides an attractive alternative in which the complex moving surface is immersed in a fixed Cartesian (or polyhedral) grid. We have developed an immersed boundary simulation tool-kit for moving boundary problems based on OpenFOAM. It requires the user to provide the definition of the immersed surfaces in STL (stereolithography) format, type of flow (internal/external) and motion (stationary, pre-defined or flow-induced) of the surface. Numerical simulations have been performed for selected test cases to assess the computational performance of the immersed boundary too-kit. Numerical results of flow over stationary as well as vibrating cylinders agree very well with available experimental and numerical results, and show that the immersed boundary simulations accurately capture the vortex shedding frequency and vortical structures for moving boundary problems.

Level set-based topology optimization for two dimensional turbulent flow using an immersed boundary method

2021 ◽  
pp. 110630
Author(s):  
Seiji Kubo ◽  
Atsushi Koguchi ◽  
Kentaro Yaji ◽  
Takayuki Yamada ◽  
Kazuhiro Izui ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Turbulent Flow ◽  
Level Set ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Two Dimensional ◽  
Boundary Method

scholarly journals CFD simulation of turbulent flows over wire-wrapped nuclear reactor bundles using immersed boundary method

2020 ◽  
Vol 1599 ◽  
pp. 012022
Author(s):  
Antonio Cervone ◽  
Andrea Chierici ◽  
Leonardo Chirco ◽  
Roberto Da Vià ◽  
Valentina Giovacchini ◽  
...  
Keyword(s):  
Turbulent Flows ◽  
Immersed Boundary Method ◽  
Nuclear Reactor ◽  
Cfd Simulation ◽  
Immersed Boundary ◽  
Boundary Method
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