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

作者：Xia Yidong^*; Wang Chuanjin; Luo Hong; Christon Mark; Bakosi Jozsef

来源：Journal of Computational Physics, 2016, 307: 653-669.

DOI：10.1016/j.jcp.2015.12.022

• Incompressible flow
• Turbulence model
• RANS
• LES

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, some form of solution verification has been attempted to identify sensitivities in the solution methods, and suggest best practices when using the Hydra-TH code.

• 出版日期2016-2-15
• 单位Los Alamos