کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9662433 | 698673 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of a good value of the time step and preconditioned Krylov subspace methods for the Navier-Stokes equations
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
علوم کامپیوتر (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Determination of a good value of the time step and preconditioned Krylov subspace methods for the Navier-Stokes equations Determination of a good value of the time step and preconditioned Krylov subspace methods for the Navier-Stokes equations](/preview/png/9662433.png)
چکیده انگلیسی
The main purpose of this paper is to develop stable versions of some Krylov subspace methods for solving the linear systems of equations Ax = b which arise in the difference solution of 2-D nonstationary Navier-Stokes equations using implicit scheme and to determine a good value of the time step. Our algorithms are based on the conjugate-gradient method with a suitable preconditioner for solving the symmetric positive definite system and preconditioned GMRES, Orthomin(K), QMR methods for solving the nonsymmetric and (in)definite system. The performance of these methods is compared. In addition, we show that by using the condition number of the first nonsymmetric coefficient matrix, it is possible to determine a good value of the time step.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Mathematics with Applications - Volume 49, Issues 7â8, MayâJune 2005, Pages 1045-1057
Journal: Computers & Mathematics with Applications - Volume 49, Issues 7â8, MayâJune 2005, Pages 1045-1057
نویسندگان
F. Toutounian,