Temat: methods - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Implementation of MUSCL-Hancock method into the C++ code for the Euler equations
Autorzy:: Murawski, K.
Stpiczyński, P.
Powiązania:: https://bibliotekanauki.pl/articles/200996.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hyperbolic equations
numerical methods
Godunow methods
Opis:: In this paper we present implementation of the MUSCL-Hancock method for numerical solutions of the Euler equations. As a result of the internal complexity of these equations solving them numerically is a formidable task. With the use of the original C++ code, we developed and presented results of a numerical test that was performed. This test shows that our code copes very well with this task.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 1; 45-53
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Numerical methods of solving equations of hydrodynamics from perspectives of the code FLASH
Autorzy:: Murawski, K.
Lee, D.
Powiązania:: https://bibliotekanauki.pl/articles/202336.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: numerical methods for hyperbolic equations
finite volume method
Godunov-type methods
Opis:: In this paper we review numerical methods for hydrodynamic equations. Internal complexity make numerical solutions of these equations a formidable task. We present results of advanced numerical simulations for a complex system with a use of a publicly available code, FLASH. These results proof that the numerical methods cope very well with this task.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 1; 81-91
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical solutions of magnetohydrodynamic equations
Autorzy:: Murawski, K.
Powiązania:: https://bibliotekanauki.pl/articles/202271.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: numerical methods for hyperbolic equations
finite volume method
Godunov-type methods
magnetohydrodynamics
Opis:: In this paper we review several mathematical aspects in numerical methods for magnetohydrodynamic equations. The intrinsic complexity and the requirements of the selenoidity condition make numerical solutions of these equations a formidable task. We present results of advanced numerical simulations for a complex system, which reveal that the numerical methods cope very well with this task.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 2; 219-226
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Numerical methods for fast magnetoacoustic waves in solar coronal loops
Autorzy:: Gruszecki, M.
Murawski, K.
Powiązania:: https://bibliotekanauki.pl/articles/1943226.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska
Tematy:: numerical simulations
Godunov methods
magnetohydrodynamics
Opis:: Numerical methods for standing fast magnetoacoustic kink waves in an isothermal solar coronal slab with a field aligned flow are considered. Such waves are triggered impulsively by a velocity pulse that is initially launched in an ambient medium. The spatial and temporal signatures of these waves are determined by solving two-dimensional, ideal magnetohydrodynamic equations numerically. The Ramses code which resolves complex spatial structures by adopting an adaptive mesh refinement technique and shock-capturing capabilities is used. The numerical results show that spatial and temporal wave signatures are reminiscent to the recent observational findings.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2009, 13, 1-2; 75-81
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Godunov-type algorithms for numerical modeling of solar plasma
Autorzy:: Murawski, K.
Lee, D.
Powiązania:: https://bibliotekanauki.pl/articles/206269.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: computer science
modelling
numerical methods
hyperbolic equations
Opis:: We discuss numerical methods to solve the Cauchy problem for hyperbolic equations, paying attention to equations which describe physical phenomena in fluid dynamics. We concentrate on Godunov-type methods which adopt Riemann solvers. These methods constitute a formidable task due to complexity of hyperbolic equations. Despite this complexity we show that the Godunov-type methods can be successfully applied to simulate complex systems such as described by equations of magnetohydrodynamics. In particular, we simulate thermal mode in a two-dimensional x-point magnetic field topology that is embedded in a gravitationally stratified solar atmosphere.
Źródło:: Control and Cybernetics; 2012, 41, 1; 35-56
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Godunov-type methods for two-component magnetohydrodynamic equations
Autorzy:: Murawski, K.
Tanaka, T.
Powiązania:: https://bibliotekanauki.pl/articles/201296.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: two-component magnetohydrodynamic equations
Godunov-type methods
Opis:: This paper is concerned with a numerical solutions of two-component magnetohydrodynamic equations. While a hyperbolic system of wave equations admits a shock solution as a result of the selenoidality condition the MHD equations are not strictly hyperbolic. As a consequence of that these equations require special numerical treatment. An application of a resulting numerical code to a problem of solar wind interaction with the ionosphere of the planet Venus is presented.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 2; 343-348
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: MPI-GPU/CUDA implementation of TVDLF method for the two-dimensional advection equation
Autorzy:: Murawski, K.
Stpiczyński, P.
Powiązania:: https://bibliotekanauki.pl/articles/206329.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: computer science
modelling
numerical methods
hyperbolic equations
Opis:: We implement Total Variation Diminishing Lax Friedrichs (TVDLF, or Rusanov) method to obtain numerical solutions of the two-dimensional advection equation. Despite the simplicity of this equation, solving it numerically is a formidable task. Based on the use of the original C++ MPI-GPU/CUDA code we present results of numerical tests we performed. These tests show that our code represents well the square wave profiles, leading to up to 60- times faster calculations with the use of MPI than with its serial counter-part.
Źródło:: Control and Cybernetics; 2014, 43, 2; 307-320
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Godunov-type numerical methods for one- and two-component magnetohydrodynamic equations
Autorzy:: Murawski, K.
Powiązania:: https://bibliotekanauki.pl/articles/1943228.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska
Tematy:: numerical simulations of hyperbolic equations
Godunov methods
magnetohydrodynamics
Opis:: In this paper we review Godunov-type numerical methods for one- and two-component magnetohydrodynamic equations. Solving these equations numerically is a formidable task as a result of the internal complexity of these equations and the requirements of [delta] B=0. We present several results of advanced numerical simulations for complex systems. These results prove that the numerical codes which are based on Godunov-type methods, cope with all problems very well.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2009, 13, 1-2; 45-73
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

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