High-fidelity simulations of unsteady flow through turbopumps and flowliners.

*(English)*Zbl 1237.76087Summary: High-fidelity computations were carried out to analyze the orbiter liquid hydrogen \((LH_{2})\) feedline flowliner and the low-pressure-fuel-turbopump (LPFTP). Computations were performed on the Columbia platform which is a 10,240-processor supercluster consisting of 20 Altix nodes with 512 processors each. Various computational models were used to characterize the unsteady flow features in the turbopump, including the orbiter LPFTP inducer, the orbiter manifold and an experimental test article used to represent the manifold. Unsteady flow originating from the orbiter LPFTP inducer is one of the major contributors to the high-frequency cyclic loading that results in high cycle fatigue damage to the gimbal flowliners just upstream of the LPFTP. The flowfields for the orbiter manifold and representative test article are computed and analyzed for similarities and differences. An incompressible Navier-Stokes flow solver INS3D, based on the artificial compressibility method, was used to compute the flow of liquid hydrogen in each test article.

##### MSC:

76M12 | Finite volume methods applied to problems in fluid mechanics |

76D05 | Navier-Stokes equations for incompressible viscous fluids |

65Y05 | Parallel numerical computation |

##### Software:

OVERFLOW-MLP
PDF
BibTeX
XML
Cite

\textit{C. C. Kiris} et al., Comput. Fluids 37, No. 5, 536--546 (2008; Zbl 1237.76087)

Full Text:
DOI

##### References:

[1] | Chorin, A.J., A numerical method for solving incompressible viscous flow problems, J comput phys, 2, 12-26, (1967) · Zbl 0149.44802 |

[2] | Kiris, C.; Kwak, D., Parallel unsteady turbopump simulations for reusable launch vehicle, () |

[3] | Kiris, C.; Kwak, D.; Rogers, S., Incompressible navier – stokes solvers in primitive variables and their applications to steady and unsteady flow simulations, () · Zbl 1187.76711 |

[4] | Rogers, S.E.; Kwak, D.; Kiris, C., Numerical solution of the incompressible navier – stokes equations for steady and time-dependent problems, Aiaa j, 29, 4, 603-610, (1991) |

[5] | Roe, P.L., Approximate Riemann solvers, parameter vectors, and difference schemes, J comp phys, 43, 357-372, (1981) · Zbl 0474.65066 |

[6] | MacCormack RW. Current status of numerical solutions of the Navier-Stokes equations, AIAA Paper No. 85-0032, 1985. |

[7] | Taft, J.R., Achieving 60gflop/s on the production CFD code OVERFLOW-MLP, Parallel comput, 27, 4, 521-536, (2001) · Zbl 0972.68083 |

[8] | Jin H, Frumkin M, Yan J. Automatic generation of OpenMP directives and its application to computational fluid dynamics codes. In: Proceeding of the third international symposium on high performance computing, Tokyo, Japan, October 16-18, 2000. |

This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.