日本応用数理学会2013年度年会
アクロス福岡 (福岡市中央区天神1-1-1)
2013年9月9日(月)～9月11日(水)
HP
6月30日(日) 講演申込〆切
7月19日(金) 事前登録参加費入金〆切
7月31日(水) 予稿提出・ポスター発表申込〆切
アクロス福岡 (福岡市中央区天神1-1-1)
2013年9月9日(月)～9月11日(水)
HP
6月30日(日) 講演申込〆切
7月19日(金) 事前登録参加費入金〆切
7月31日(水) 予稿提出・ポスター発表申込〆切
Workshop on Computational Mathematics
10 May (Friday) 2013
Room: 118
Graduate School of Mathematical Sciences
The University of Tokyo
http://www.ms.u-tokyo.ac.jp/ac
10:15-11:00
Professor Eric Chung
(Chinese University of Hong Kong)
"Multiscale simulation of waves"
Abstract:
Numerical simulation of elastic and acoustic wave propagation utilizes increasingly large and complex models, providing more realistic and useful results. However, significant challenges remain as direct simulations on fine grid are computationally prohibitive. While in some cases, effective medium theories may be useful, in other situations the distribution of heterogeneities may have more complex effects on waves. We present our results of a new multiscale finite element algorithm for simulating acoustic wave propagation in heterogeneous media. The wave equation is solved on a coarse grid using multiscale basis functions. These multiscale basis functions are chosen as the most dominant modes among the set of all fine grid basis functions, and thus allowing a coarse representation of complex wave structures. Numerical results demonstrate the performance of the method. Long term developments have strong potential to enhance inversion algorithms, since the basis functions need not be regenerated, allowing faster simulations for repeated calculations needed for inversion.
11:00-11:45
Professor Zhonghua Qiao
(The Hong Kong Polytechnic University)
"Energy stability analysis and adaptive time-stepping strategy for nonlinear diffusion equations"
Abstract:
In this talk, I will review our recent works on some nonlinear diffusion equations, which have the dissipative mechanism in energy laws, such as, the dynamics of the molecular beam epitaxy (MBE) model, the Cahn-Hilliard model, the phase-field crystal model, etc. The numerical simulations of these models require very long time computations to reach the steady state. In our research, we have developed some unconditionally energy stable schemes which can preserve the discretized energy decay properties for these models. By using the energy stable schemes, an adaptive time-stepping strategy has been introduced. The energy is used to monitor the change of the time steps. Large time steps are used when the energy decays rapidly and small time steps are adopted otherwise. The numerical experiments demonstrated that the CPU time is significantly saved for long time simulations, and both the steady states and the dynamical behaviors are resolved accurately.
13:30-14:15
Professor Manabu Machida
(University of Michigan)
"Numerical Calculation of the Magnetization Correlation Function with Random Vectors"
14:30-15:15
Professor Leevan Ling
(Hong Kong Baptist University)
TBA
15:15-16:00
Professor Kazufumi Ito
(North Carolina State University)
TBA
10 May (Friday) 2013
Room: 118
Graduate School of Mathematical Sciences
The University of Tokyo
http://www.ms.u-tokyo.ac.jp/ac
10:15-11:00
Professor Eric Chung
(Chinese University of Hong Kong)
"Multiscale simulation of waves"
Abstract:
Numerical simulation of elastic and acoustic wave propagation utilizes increasingly large and complex models, providing more realistic and useful results. However, significant challenges remain as direct simulations on fine grid are computationally prohibitive. While in some cases, effective medium theories may be useful, in other situations the distribution of heterogeneities may have more complex effects on waves. We present our results of a new multiscale finite element algorithm for simulating acoustic wave propagation in heterogeneous media. The wave equation is solved on a coarse grid using multiscale basis functions. These multiscale basis functions are chosen as the most dominant modes among the set of all fine grid basis functions, and thus allowing a coarse representation of complex wave structures. Numerical results demonstrate the performance of the method. Long term developments have strong potential to enhance inversion algorithms, since the basis functions need not be regenerated, allowing faster simulations for repeated calculations needed for inversion.
11:00-11:45
Professor Zhonghua Qiao
(The Hong Kong Polytechnic University)
"Energy stability analysis and adaptive time-stepping strategy for nonlinear diffusion equations"
Abstract:
In this talk, I will review our recent works on some nonlinear diffusion equations, which have the dissipative mechanism in energy laws, such as, the dynamics of the molecular beam epitaxy (MBE) model, the Cahn-Hilliard model, the phase-field crystal model, etc. The numerical simulations of these models require very long time computations to reach the steady state. In our research, we have developed some unconditionally energy stable schemes which can preserve the discretized energy decay properties for these models. By using the energy stable schemes, an adaptive time-stepping strategy has been introduced. The energy is used to monitor the change of the time steps. Large time steps are used when the energy decays rapidly and small time steps are adopted otherwise. The numerical experiments demonstrated that the CPU time is significantly saved for long time simulations, and both the steady states and the dynamical behaviors are resolved accurately.
13:30-14:15
Professor Manabu Machida
(University of Michigan)
"Numerical Calculation of the Magnetization Correlation Function with Random Vectors"
14:30-15:15
Professor Leevan Ling
(Hong Kong Baptist University)
TBA
15:15-16:00
Professor Kazufumi Ito
(North Carolina State University)
TBA
2013年並列／分散／協調処理に関する『北九州』サマー・ワークショップ（SWoPP北九州2013）
SWoPP北九州2013では、並列／分散／
電子情報通信学会、情報処理学会、
同時・連続開催されます。
情報処理学会からはARC、OS、HPC、PROの4研究会、
からはMEPAの1研究会が開催されます。
日程: 2013年7月31日（水）～ 8月2日（金）
会場: 北九州国際会議場
〒802-0001 福岡県北九州市小倉北区浅野3-9-30
(http://www.convention-a.jp/
詳細:http://www.hpcc.jp/swopp/
SWoPP北九州2013では、並列／分散／
電子情報通信学会、情報処理学会、
同時・連続開催されます。
情報処理学会からはARC、OS、HPC、PROの4研究会、
からはMEPAの1研究会が開催されます。
日程: 2013年7月31日（水）～ 8月2日（金）
会場: 北九州国際会議場
〒802-0001 福岡県北九州市小倉北区浅野3-9-30
(http://www.convention-a.jp/
詳細:http://www.hpcc.jp/swopp/
AfriCOMP'13
Livingstone, Zambia, 30 July to 2 August 2013
http://www.africomp.com/
Conference Main Topics
1. Aerodynamics2. Acoustics and electromagnetics
3. Application of numerical methods to engineering problems
4. Artificial intelligence
5. Biomechanics, biomaterials and biomedical engineering
6. Computational biology
7. Damage and fracture mechanics
8. Data and signal processing
9. Environmental science
10. Fluid mechanics
11. Fluid-structure interaction
12. Geomechanics, oil-reservoirs and hydraulics
13. Graphics and visualization
14. Heat and mass transfer
15. Inverse problems and optimization
16. Material science and smart materials
17. Mesh generation and geometrical modelling
18. Manufacturing processes
19. Micro and nano-mechanics
20. Multi-scale mechanics
21. Non-linear dynamics
22. Numerical algorithms and numerical methods
23. Parallel computing
24. Polymers and composites
25. Programming techniques and high performance computing
26. Solid and structural mechanics
27. Free-surface-modelling
28. Heat and mass transfer through porous materials
29. Reactor modelling
Conference Fees
| Early Bird Registration | by 31 May 2013 | R5200 |
| Late Registration | from 1 June 2013 | R6200 |
| Student Early Registration | by 31 May 2013 | R3600 |
| Student Late Registration | from 1 June 2013 | R4600 |
$1 ≈ 5.35 ZMW; 1€ ≈ R12.20)