### Abstract

This paper describes a new way to write and solve the governing equations of fluid dynamics that is very well suited to aeroacoustics problems. The flow field variables are split into a mean and a fluctuating part, and then inserted into the governing equations. If the mean flowfield satisfies the steady-state governing equations, then the resulting equations can be written in a very convenient form. These equations are then solved using a method that is second or fourth order accurate in space and time, on a Cartesian grid. Several aeroacoustic benchmark problems are solved, some duct propagation problems are presented, and a long- range scattering problem is solved. The code is written in Fortran-90 using the Message Passing Interface (MPI), and performance results are presented for a cluster of workstations

Original language | English (US) |
---|---|

State | Published - Dec 1 2000 |

Event | 6th Aeroacoustics Conference and Exhibit, 2000 - Lahaina, HI, United States Duration: Jun 12 2000 → Jun 14 2000 |

### Other

Other | 6th Aeroacoustics Conference and Exhibit, 2000 |
---|---|

Country | United States |

City | Lahaina, HI |

Period | 6/12/00 → 6/14/00 |

### All Science Journal Classification (ASJC) codes

- Aerospace Engineering
- Electrical and Electronic Engineering
- Mechanical Engineering
- Acoustics and Ultrasonics

## Fingerprint Dive into the research topics of 'A nonconservative nonlinear flowfield splitting method for 3-D unsteady fluid dynamics'. Together they form a unique fingerprint.

## Cite this

*A nonconservative nonlinear flowfield splitting method for 3-D unsteady fluid dynamics*. Paper presented at 6th Aeroacoustics Conference and Exhibit, 2000, Lahaina, HI, United States.