工学部 研究紹介_2018_英語版

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サイズW7.5cm×H4.35cm配置位置横11cm、縦2.5cmTransparent compressed wood made from Japanese cypress ( ChamaecyparisobtusaSieb. et Zucc. ) .KitazawaLabKimiyoshiKitazawaProfessorResearch Interest:Technology of plasticity; Eco-materials; Recycling; Eco-mindAwards: 1989 Paper prize (JSTP); 2005 Award of the Ministry of Education (JSEE)The cold recycling enables large reduction of energy consumption and the greenhouse gas emission in comparison with conventional recycling.Cold Recycling；Transparent Compressed WoodIn the FutureAfter GraduationTheenvironmentalproblemssuchastheglobalwarmingbecametheseriousproblemtothreatenasustainabilityofthehumandevelopment.Toreduceenvironmentalimpactsoccurringateachstageofthelifecycleofproducts,threenewtechniqueshavebeendevelopedinourlaboratory.Thefirstisatechniqueoftheincrementalformingforthepurposeofthesmalllotproductionofthesheetmetalproduct.Thesecondisatechniqueofcompressionformingforthepurposeoftheproductionofeco-productwhichcontributestofixationforacarbonlongtermwithbiomassasrawmaterials,suchaschaff,bambooandthinningwood.Thethirdisatechniqueofthecoldrecyclingofsheetmetalproductsforthepurposeofthereductionofthegreenhousegasemission.Theincrementalformingenablesustobreakawayfromthesocietyofmassproduction,massconsumptionandmassdisposal.Theproductpreparedbythecompressionformingisharmlessfornaturalecosystemandthehealthofthepersoninallstagesofthelifecycleofproduct.Thesheetmetalrestoredbythecoldrecyclinghastheformabilitythatisequaltosheetmetalrestoredbytheconventionalrecyclingincludingthemeltingprocess.Recyclingnottodissolvemetalisbecomingthereality.Graduateswhoperformedexperimentalstudyoftheeco-technologyplaysanactivepartasanengineerinmakerssuchastheelectricelectronicequipment,car,precisioninstrumentandmetal.Mechanical Systems EngineeringInourlaboratory,complexfluidflowswhichwecanseeinourdailylifebutcannotunderstandsufficientlyarestudiedbynumericalsimulations.Owingtorecentgreatadvanceincomputers,wehavebeenabletoinvestigatecomplexfluidflowswithhighaccuracy.Inparticular,thecombinationofthelatticeBoltzmannmethod(LBM)withtheimmersedboundarymethod(IBM)isapowerfulnumericalmethod,andcomplexfluidflowsindailylifesuchasfallingleavesorflappingflightbyinsectsaresimulatedbythemethod.Everyonecanobserveinwinterthataleaffluttersandtumblesdown,butcannoteasilypredictthetrajectoryandtheorientationoftheleaf.Similarly,anyonecannotcompletelyanswerthefollowingquestion,i.e.‘Howcaninsectsfly?’.Ifthefluidflowinducedbyinsectsandtheliftforceactingtheirwingsareunderstood,anairplaneflappinglikeinsectsmaybeconstructed.KosukeSuzukiAssistantProfessorPhDinEng.-2014,KyotoUniversity.Specialty: Computational Fluid Dynamics, Lattice Boltzmann Method, Immersed Boundary MethodNumerical Simulation ofComplex Fluid Flows in Daily LifeThe map of ‘Flapping frequency’ vs. ‘Mass’. The simple wing-body model with mass of actual insects can go upward against gravity. Inourlaboratory,youcanacquirenotonlyspecializedknowledgeonfluiddynamics,butalsoabilitiesforlogicallythinking,explaining,andwritingaswellasprogrammingskill.Theseknowledge,abilities,andskillareusefulinawiderangeofengineeringfield.Freeflightsimulationofabutterfly-likeflappingwing-bodymodel.Suchasimplewing-bodymodelcanflyagainstgravity.SuzukiLabIn the FutureMechanical Systems EngineeringAfter Graduation57