### Abstract

A numerical model for studying the interaction between a compressible fluid and an elastic solid is described. The fluid is only slightly compressible, but large pressure changes in the problem (ambient to 50 MPa) require that the compressibility be taken into account. The fluid is treated as barotropic, which means that the pressure is a function of the density alone. It is modeled using a stabilized spacetime finite element formulation which can automatically handle the changes in the size and shape of the computational domain caused by the deformation and motion of the solid. The solid is treated as linearly elastic and is modeled using a Galerkin finite element method. The solid is modeled using classical linear elasticity theory, instead of, e.g., plate or beam theory. This allows the modeling of structures of arbitrary shapes. The coupled model is used to study an interior flow problem in which a defoimable piston controls the size of an orifice through which the liquid flows. The vibration of the piston may have an important effect on the mass flow rate of the liquid.

Original language | English |
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Title of host publication | 35th Aerospace Sciences Meeting and Exhibit |

Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |

Pages | 1-11 |

Number of pages | 11 |

Publication status | Published - 1997 |

Externally published | Yes |

Event | 35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States Duration: 1997 Jan 6 → 1997 Jan 9 |

### Other

Other | 35th Aerospace Sciences Meeting and Exhibit, 1997 |
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Country | United States |

City | Reno |

Period | 97/1/6 → 97/1/9 |

### Fingerprint

### ASJC Scopus subject areas

- Space and Planetary Science
- Aerospace Engineering

### Cite this

*35th Aerospace Sciences Meeting and Exhibit*(pp. 1-11). American Institute of Aeronautics and Astronautics Inc, AIAA.

**Simulation of compressible fluid-elastic solid interactions.** / Ray, S. E.; Wren, G. P.; Tezduyar, Tayfun E.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*35th Aerospace Sciences Meeting and Exhibit.*American Institute of Aeronautics and Astronautics Inc, AIAA, pp. 1-11, 35th Aerospace Sciences Meeting and Exhibit, 1997, Reno, United States, 97/1/6.

}

TY - GEN

T1 - Simulation of compressible fluid-elastic solid interactions

AU - Ray, S. E.

AU - Wren, G. P.

AU - Tezduyar, Tayfun E.

PY - 1997

Y1 - 1997

N2 - A numerical model for studying the interaction between a compressible fluid and an elastic solid is described. The fluid is only slightly compressible, but large pressure changes in the problem (ambient to 50 MPa) require that the compressibility be taken into account. The fluid is treated as barotropic, which means that the pressure is a function of the density alone. It is modeled using a stabilized spacetime finite element formulation which can automatically handle the changes in the size and shape of the computational domain caused by the deformation and motion of the solid. The solid is treated as linearly elastic and is modeled using a Galerkin finite element method. The solid is modeled using classical linear elasticity theory, instead of, e.g., plate or beam theory. This allows the modeling of structures of arbitrary shapes. The coupled model is used to study an interior flow problem in which a defoimable piston controls the size of an orifice through which the liquid flows. The vibration of the piston may have an important effect on the mass flow rate of the liquid.

AB - A numerical model for studying the interaction between a compressible fluid and an elastic solid is described. The fluid is only slightly compressible, but large pressure changes in the problem (ambient to 50 MPa) require that the compressibility be taken into account. The fluid is treated as barotropic, which means that the pressure is a function of the density alone. It is modeled using a stabilized spacetime finite element formulation which can automatically handle the changes in the size and shape of the computational domain caused by the deformation and motion of the solid. The solid is treated as linearly elastic and is modeled using a Galerkin finite element method. The solid is modeled using classical linear elasticity theory, instead of, e.g., plate or beam theory. This allows the modeling of structures of arbitrary shapes. The coupled model is used to study an interior flow problem in which a defoimable piston controls the size of an orifice through which the liquid flows. The vibration of the piston may have an important effect on the mass flow rate of the liquid.

UR - http://www.scopus.com/inward/record.url?scp=84983121543&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983121543&partnerID=8YFLogxK

M3 - Conference contribution

SP - 1

EP - 11

BT - 35th Aerospace Sciences Meeting and Exhibit

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

ER -