A current density conservative scheme for incompressible mhd flows at a low magnetic reynolds number. part i: on a rectangular collocated grid system
文献类型：期刊论文
| 作者 | Ni, Ming-Hu; Munipalli, Ramakanth; Morley, Neil B.; Huang, Peter; Abdou, Mohamed A. |
| 刊名 | Journal of computational physics
 |
| 出版日期 | 2007-11-10 |
| 卷号 | 227期号:1页码:174-204 |
| 关键词 | Consistent and conservative scheme Projection method Mhd |
| ISSN号 | 0021-9991 |
| DOI | 10.1016/j.jcp.2007.07.025 |
| 通讯作者 | Ni, ming-hu(mjni@gucas.ac.cn) |
| 英文摘要 | A consistent, conservative and accurate scheme has been designed to calculate the current density and the lorentz forc, by solving the electrical potential equation for magnetohydrodynamics (mhd) at low magnetic reynolds numbers and high hartmann numbers on a finite-volume structured collocated grid. in this collocated grid, velocity (u), pressure (p) and electrical potential (phi) are located in the grid center, while current fluxes are located on the cell faces. the calculation of current fluxes on the cell faces is conducted using a conservative scheme, which is consistent with the discretization scheme for the solution of electrical potential poisson equation. a conservative interpolation is used to get the current density at the cell center, which is used to conduct the calculation of lorentz force at the cell center for momentum equations we will show that both "conservative" and "consistent" are important properties of the scheme to get an accurate result for high hartmann number mhd flows with a strongly non-uniform mesh employed to resolve the hartmann layers and side layers of hunt's conductive walls and shercliff's insulated walls. a general second-order projection method has beet developed for the incompressible navier-stokes equations with the lorentz force included. this projection method can accurately balance the pressure term and the lorentz force for a fully developed core flow. this method can also simplify. the pressure boundary conditions for mhd flows. (c) 2007 elsevier inc. all rights reserved. |
| WOS关键词 | FINITE-DIFFERENCE SCHEMES ; NAVIER-STOKES EQUATIONS ; LARGE-EDDY SIMULATION ; LIQUID-METAL ; TURBULENT-FLOW ; DUCTS ; FIELD ; WALLS ; HEAT ; STEP |
| WOS研究方向 | Computer Science ; Physics |
| WOS类目 | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
| 语种 | 英语 |
| WOS记录号 | WOS:000251140100010 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382391 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ni, Ming-Hu |
| 作者单位 | 1.Grad Univ, Chinese Acad Sci, Dept Phys, Beijing 100049, Peoples R China 2.Univ Calif Los Angeles, MAE Dept, Los Angeles, CA 90095 USA 3.HyperComp Inc, Westlake Village, CA 91362 USA |
| 推荐引用方式 GB/T 7714 | Ni, Ming-Hu,Munipalli, Ramakanth,Morley, Neil B.,et al. A current density conservative scheme for incompressible mhd flows at a low magnetic reynolds number. part i: on a rectangular collocated grid system[J]. Journal of computational physics,2007,227(1):174-204. |
| APA | Ni, Ming-Hu,Munipalli, Ramakanth,Morley, Neil B.,Huang, Peter,&Abdou, Mohamed A..(2007).A current density conservative scheme for incompressible mhd flows at a low magnetic reynolds number. part i: on a rectangular collocated grid system.Journal of computational physics,227(1),174-204. |
| MLA | Ni, Ming-Hu,et al."A current density conservative scheme for incompressible mhd flows at a low magnetic reynolds number. part i: on a rectangular collocated grid system".Journal of computational physics 227.1(2007):174-204. |
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来源：中国科学院大学
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