Technology Development Unit

Along with rapidly-growing computational performance, numerical simulation in science and technology has become more significant, and the methodology cultivated in computational science is expected to gain popularity. We are developing information and communication technologies in a context of High-Performance Computing (HPC). Our primary effort is to develop and to disseminate applications (such as computational biomechanics and data assimilation in biological systems) supporting researches in life science and medical engineering. Further, novel numerical methods to realize multi-scale/multi-physics simulations are examined.

Research Fields

Physics / Engineering / Biology & Biochemistry / Computer Science / Mathematics / Multidisciplinary

Research Subjects

• Development of technologies for HPC and communication
• Software development and dissemination in life science and medical engineering
• Examination of numerical methods for multi-scale/multi-physics problems

Publications

1. Sugiyama, K., Ii, S., Okita, K., Takagi, S. and Matsumoto, Y.:
   “A priori modeling of the acoustic boundary layer effect on the heat source in ultrasound”
   J. Biomech. Sci. Engrg. 7, 84-101 (2012).
2. Leduc, N., Okita, K., Sugiyama, K., Takagi, S. and Matsumoto, Y.:
   “Focus control in HIFU therapy assisted by time-reversal simulation with an iterative procedure for hot spot elimination”
   J. Biomech. Sci. Engrg. 7, 43-56 (2012).
3. Liu, Y.-Q., Sugiyama, K., Takagi, S. and Matsumoto, Y.:
   “Surface stability of an encapsulated bubble subjected to an ultrasonic pressure wave”
   J. Fluid Mech. 691, 315-340 (2012).
4. Ii, S., Sugiyama, K., Takeuchi, S., Takagi, S., Matsumoto, Y. and Xiao, F.:
   “An interface capturing method with a continuous function: the THINC method with multi-dimensional reconstruction”
   J. Comput. Phys. 231, 2328-2358 (2012).
5. Ii, S., Gong, X., Sugiyama, K., Wu, J., Huang, H. and Takagi, S.:
   “A full Eulerian fluid-membrane coupling method with a smoothed volume-of-fluid approach”
   Comm. Comput. Phys. 12, 544-576 (2012)
6. Takagi, S., Sugiyama, K., Ii, S. and Matsumoto, Y.:
   “A review of full Eulerian methods for fluid-structure interaction problems”
   J. Appl. Mech. 79, 010911 (2012)
7. Sugiyama, K., Ii, S., Takeuchi, S., Takagi, S. and Matsumoto, Y.:
   “A full Eulerian finite difference approach for solving fluid-structure coupling problems”
   J. Comput. Phys. 230, 596-627 (2011)
8. Liu, Y.-Q., Sugiyama, K., Takagi, S. and Matsumoto, Y.:
   “Numerical study on the shape oscillation of an encapsulated microbubble in ultrasound field”
   Phys. Fluids 23, 041904 (2011)
9. *Sugiyama, K., Ni, R., Stevens, R.J.A.M., Chan, T.S., Zhou, S.-Q., Xi, H.-D., Sun, C., Grossmann, S., Xia, K.-Q. and Lohse, D.:
   “Flow reversals in thermally driven turbulence”
   Phys. Rev. Lett. 105, 034503 (2010).