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入学希望の方 修了生の方 企業・研究者の方 教職員・学生 //--> Sitemap Access Japanese About GSISMessage from the DeanIntroduction to GSISGSIS guide bookOrganizationSNSJournal: Interdisciplinary Information SciencesContactsFacultyLaboratories by DepartmentComputer and Mathematical SciencesSystem Information SciencesHuman-Social Information SciencesApplied Information SciencesLaboratories by Specialized Subject GroupColaborative LaboratoriesPromotion OfficeAdmissionEntrance ExaminationCurriculum and Qualifications for ApplicationResearch StudentDormitoryFor StudentsSyllabus / Time table / Student HandbookNoticeInternational StudentsScholarshipDormitoryAdmission fee / Tuition fee waiverHandbook for International StudentsJapanese Language ProgramCounseling servicesEmergency InformationInternal Access Only Home Faculty Laboratories by Department Flow System Informatics Applied Information Sciences Flow System Informatics D09 Prof. Yuji Hattori       Assoc. Prof. Makoto Hirota       Lab's Web page Keywordscomputational fluid dynamics, turbulence, vortex dynamics, fluid dynamics by mathematical approach, hydrodynamic stability, magnetohydrodynamics Computational and Physical Fluid Dynamics We are doing fundamental research in fluid dynamics. Fluid motions are ubiquitous in many areas ranging from biological to astronomical scale and in many applications including aeronautical engineering, environmental studies and energy technologies of next generation.  Thanks to the rapid growth of computational power, numerical simulation of fluid motions has acquired a wide range of applications.  There are increasing needs for highly accurate simulation as well as novel methods of obtaining useful knowledge from huge data.  In our laboratory, we are studying fluid motions by numerical simulation and theoretical analysis. (1) Computational fluid dynamics Development of numerical methods for direct numerical simulation of flows which include complex geometries and/or moving objects Numerical study of reduction of aeroacoustic noise by porous materials (2) Statistical properties of turbulence and development of new turbulence models Development of new turbulence models using machine learning Enhancement of laminar region of boundary layer on a swept wing (3) Vortex dynamics and hydrodynamic stability Instability, nonlinear dynamics and transition to turbulence of vortex rings Theory of hybrid instability generated by hyperbolic instability and phase shift due to waves Control of boundary layer transition by wall roughness (top: no control, bottom: with control). The laminar region is expanded by suppressing turbulence transition. Prediction of SGS strain tensor using machine learning. (Left) direct numerical simulation, (right) prediction by neural network. The two distributions are in good agreement. FacultyLaboratories by DepartmentComputer and Mathematical SciencesSystem Information SciencesHuman-Social Information SciencesApplied Information SciencesLaboratories by Specialized Subject GroupColaborative LaboratoriesPromotion Office GSIS: Graduate School of Information Sciences, Tohoku University 6-3-09 Aoba, Aramaki-aza Aoba-ku, Sendai, 980-8579, Japan Phone.+81-22-795-5813 Fax. +81-22-795-5815 Contacts is-www-admin,is.tohoku.ac.jp --> About GSIS Message from the DeanIntroduction to GSISGSIS guide bookOrganizationSNSJournal: Interdisciplinary Information SciencesContacts Faculty Laboratories by DepartmentComputer and Mathematical SciencesSystem Information SciencesHuman-Social Information SciencesApplied Information SciencesLaboratories by Specialized Subject GroupColaborative LaboratoriesPromotion Office Admission Entrance ExaminationCurriculum and Qualifications for ApplicationResearch StudentDormitory For Students Syllabus / Time table / Student HandbookNoticeInternational StudentsScholarshipDormitoryAdmission fee / Tuition fee waiverHandbook for International StudentsJapanese Language ProgramCounseling servicesEmergency InformationInternal Access Only About this Website Link © 2016 Graduate School of Information Sciences, Tohoku University About GSIS Message from the DeanIntroduction to GSISGSIS guide bookOrganizationSNSJournal: Interdisciplinary Information SciencesContacts Faculty Laboratories by DepartmentComputer and Mathematical SciencesSystem Information SciencesHuman-Social Information SciencesApplied Information SciencesLaboratories by Specialized Subject GroupColaborative LaboratoriesPromotion Office Admission Entrance ExaminationCurriculum and Qualifications for ApplicationResearch StudentDormitory For Students Syllabus / Time table / Student HandbookNoticeInternational StudentsScholarshipDormitoryAdmission fee / Tuition fee waiverHandbook for International StudentsJapanese Language ProgramCounseling servicesEmergency InformationInternal Access Only Sitemap Access Japanese no cache