Estimation of Resistance and Self-Propulsion Characteristics for Low L/B Twin-Skeg Container Ship by a High-Fidelity RANS Solver
| Autor: | Nobuaki Sakamoto, Noriyuki Sasaki, Yasutaka Kawanami, Shotaro Uto |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Numerical Analysis
Engineering business.industry Turbulence Applied Mathematics Mechanical Engineering Propeller Ocean Engineering Solver Propulsion symbols.namesake Froude number symbols Reynolds-averaged Navier–Stokes equations Navier–Stokes equations business Towing Civil and Structural Engineering Marine engineering |
| Zdroj: | Journal of Ship Research. 57:24-41 |
| ISSN: | 1542-0604 0022-4502 |
| DOI: | 10.5957/jsr.2013.57.1.24 |
| Popis: | Reynolds-averaged Navier-Stokes simulations together with verification and validation studies for a low L/B twin-skeg container ship are carried out using SURF version 6.44, which is a high-fidelity RANS solver for ship hydrodynamics developed at the National Maritime Research Institute: single-phase level set free surface, Spalart-Allmaras/k-co turbulence, and body-force propeller models; finite volume discretization; and parallelized by openMPW for high-performance computing. At the beginning, simulation numerical uncertainty has been quantified for resistance and self-propulsion coefficients on the basis of the standard V&V procedure recommended by the International Towing Tank Conference. Then the resistance and self-propulsion simulations are carried out at several speeds ranging from low to medium Froude numbers. The overall results are encouraging in that the solver accurately predicts resistance and self-propulsion coefficients as well as velocity distribution at the propeller plane in comparison to the available experimental data. Further sophistications in computational method, especially in estimating self-propulsion coefficients, will lead the solver to be more practical and powerful design tool. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|