Assessment of a hybrid finite element and finite volume code for turbulent incompressible flows

Journal Article · Tue Dec 15 00:00:00 EST 2015 · Journal of Computational Physics

DOI:https://doi.org/10.1016/j.jcp.2015.12.022· OSTI ID:1240388

Xia, Yidong ^[1]; Wang, Chuanjin ^[2]; Luo, Hong ^[2]; Christon, Mark ^[3]; Bakosi, Jozsef ^[3]

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1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
2. North Carolina State Univ., Raleigh, NC (United States)
3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Hydra-TH is a hybrid finite-element/finite-volume incompressible/low-Mach flow simulation code based on the Hydra multiphysics toolkit being developed and used for thermal-hydraulics applications. In the present work, a suite of verification and validation (V&V) test problems for Hydra-TH was defined to meet the design requirements of the Consortium for Advanced Simulation of Light Water Reactors (CASL). The intent for this test problem suite is to provide baseline comparison data that demonstrates the performance of the Hydra-TH solution methods. The simulation problems vary in complexity from laminar to turbulent flows. A set of RANS and LES turbulence models were used in the simulation of four classical test problems. Numerical results obtained by Hydra-TH agreed well with either the available analytical solution or experimental data, indicating the verified and validated implementation of these turbulence models in Hydra-TH. Where possible, we have attempted some form of solution verification to identify sensitivities in the solution methods, and to suggest best practices when using the Hydra-TH code.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC05-00OR22725; AC52-06NA25396
• OSTI ID: 1240388
• Alternate ID(s): OSTI ID: 1359293; OSTI ID: 22570227
• Report Number(s): LA-UR--14-28494; PII: S0021999115008414
• Journal Information: Journal of Computational Physics, Journal Name: Journal of Computational Physics Journal Issue: C Vol. 307; ISSN 0021-9991
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
Hydra-TH
Reynolds-averaged Navier-Stokes
incompressible flows
large-eddy simulation
turbulence models