We present a general simulation approach for incompressible fluid–structure interactions in a fully Eulerian framework using the reference map technique. The approach is suitable for modeling one or more rigid or finitely deformable objects or soft objects with rigid components interacting with the fluid and with each other. It is also extended to control the kinematics of structures in fluids. The model is based on our previous Eulerian fluid–soft solver [Rycroft et al., “Reference map technique for incompressible fluid–structure interaction,” J. Fluid Mech. 898, A9 (2020)] and generalized to rigid structures by constraining the deformation-rate tensor in a projection framework. Several numerical examples are presented to illustrate the capability of the method.
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March 2022
Research Article|
March 02 2022
An incompressible Eulerian method for fluid–structure interaction with mixed soft and rigid solids
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Xiaolin Wang (汪小琳)
;
Xiaolin Wang (汪小琳)
a)
1
John A. Paulson School of Engineering and Applied Sciences, Harvard University
, Cambridge, Massachusetts 02138, USA
2
Department of Mechanical Engineering, Massachusetts Institute of Technology
, Cambridge, Massachusetts 02139, USA
a)Author to whom correspondence should be addressed: [email protected]
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Ken Kamrin;
Ken Kamrin
b)
2
Department of Mechanical Engineering, Massachusetts Institute of Technology
, Cambridge, Massachusetts 02139, USA
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Chris H. Rycroft
Chris H. Rycroft
c)
1
John A. Paulson School of Engineering and Applied Sciences, Harvard University
, Cambridge, Massachusetts 02138, USA
3
Mathematics Group, Lawrence Berkeley National Laboratory
, 1 Cyclotron Road, Berkeley, California 94720, USA
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Ken Kamrin
2,b)
Chris H. Rycroft
1,3,c)
1
John A. Paulson School of Engineering and Applied Sciences, Harvard University
, Cambridge, Massachusetts 02138, USA
2
Department of Mechanical Engineering, Massachusetts Institute of Technology
, Cambridge, Massachusetts 02139, USA
3
Mathematics Group, Lawrence Berkeley National Laboratory
, 1 Cyclotron Road, Berkeley, California 94720, USA
a)Author to whom correspondence should be addressed: [email protected]
b)
Electronic mail: [email protected]
c)
Electronic mail: [email protected]
Physics of Fluids 34, 033604 (2022)
Article history
Received:
December 13 2021
Accepted:
February 09 2022
Citation
Xiaolin Wang, Ken Kamrin, Chris H. Rycroft; An incompressible Eulerian method for fluid–structure interaction with mixed soft and rigid solids. Physics of Fluids 1 March 2022; 34 (3): 033604. https://doi.org/10.1063/5.0082233
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