Search Results 1-20 of 32

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  • Development of ventilation simulation method for road tunnel with driving vehicles using sliding mesh functionality of OpenFOAM  [in Japanese]

    KATO Shota , KONNO Akihisa , MIZUNO Akisato

    … <p>We develop a method to simulate fluid flow near a road tunnel portal with driving cars using an open-source computational fluid dynamics solver OpenFOAM. … We employ sliding mesh and Arbitrary Coupled Mesh Interface (ACMI) functionality to realize motion of cars relative to the tunnel. … the result of simulation with sliding mesh is mapped to the following step of simulations as the initial flow field. …

    The Proceedings of Mechanical Engineering Congress, Japan 2018(0), S0540402, 2018

    J-STAGE 

  • Aeroelastic Analysis for the High Altitude Propeller by Using Fluid-Structure Interaction Method

    QU Zhengyu , YANG Yanchu

    … Aerodynamic analysis is carried out in Fluent by using sliding mesh method and a loosely coupled method is employed to solve the aeroelastic response. … Spring-based smoothing method is adopted for updating the mesh deformation. …

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 16(3), 236-241, 2018

    J-STAGE 

  • Heart Valve Flow Analysis with Isogeometric Discretization and Resolved Jet Flow Near Leaflet Surfaces  [in Japanese]

    TERAHARA Takuya , SASAKI Takafumi , TAKIZAWA Kenji , TEZDUYAR Tayfun E.

    … We address these challenges with a space-time (ST) method that integrates three ST methods in the framework of the ST-VMS method: the ST Slip Interface (ST-SI) and ST Topology Change (ST-TC) methods and ST Isogeometric Analysis (ST-IGA). … The ST-VMS, as a moving-mesh method, maintains high-resolution boundary layer representation near solid surfaces. …

    The Proceedings of Mechanical Engineering Congress, Japan 2017(0), J0230305, 2017

    J-STAGE 

  • Simulations of Flow around Rotating Body Using Sliding Mesh Approach  [in Japanese]

    浅尾 慎一

    産業技術短期大学誌 = Bulletin of College of Industrial Technology 49, 33-38, 2016

  • Simulation of UV-C Dose Distribution and Inactivation of Mold Spore on Strawberries in a Conveyor System

    Tanaka Fumihiko , Nashiro Kohei , Trivittayasil Vipavee , Uchino Toshitaka

    … <p>In order to examine microbial decontamination by UV-C treatment of strawberries on a continuously moving conveyor, we developed a three-dimensional irradiation model based on a discrete ordinates (DO) method to evaluate UV-C dose distribution on strawberries. … The sliding mesh method was employed to describe the motion of strawberries placed on a UV-C-transparent film tray on a conveyor through a UV-C treatment system. …

    Food Science and Technology Research 22(4), 461-466, 2016

    J-STAGE 

  • CG Expression of Snow on a Windshield  [in Japanese]

    Kubo Masataka , Tanaka Toshimitsu , Sagawa Yuji

    … This paper presents a real-time method that simulates motion of snowflakes on a windshield. … And they reach to the bottom of the windshield, by repeating the sliding and the stopping. … During the sliding, snowflakes change motion direction at random. … Our method simulates such motion with the particle model. … To represent this, a mesh is attached along the windshield wiper. …

    IEEJ Transactions on Electronics, Information and Systems 135(12), 1486-1492, 2015

    J-STAGE 

  • Unsteady Numerical Simulation of the Mutual Disturbance between Propeller and Wing

    QIAO Yuhang , MA Dongli , LI Zhi

    … This paper presents the unsteady numerical simulation and analysis of the slipstream generated by distributed propellers on a solar-powered UAV using the CFD method based on structured/unstructured hybrid grids. …

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 58(5), 298-306, 2015

    J-STAGE 

  • S1120302 Prediction method for Hypoid gears mesh power loss  [in Japanese]

    KOIDE Masakatsu , TAKAKI Kazuhiro , HAYATA Atsushi , SUGIMOTO Masaki , MORIKAWA Kunihiko

    … In this paper, a method of predicting hypoid gear mesh efficiency with high accuracy is proposed. … A new method of predicting hypoid gear mesh efficiency precisely was developed, which involves calculating the load distribution, sliding velocity, and coefficient of friction at each meshing point along the path of contact, taking into account not only the gear dimensions but also actual tooth geometries. …

    The Proceedings of Mechanical Engineering Congress, Japan 2015(0), _S1120302--_S1120302-, 2015

    J-STAGE 

  • GS23 Application to computation for flows around the tilt rotor aircraft using biaxial sliding mesh approach  [in Japanese]

    CHIKAGUCHI Satoshi , YAMAKAWA Masashi , MATSUNO Kenichi

    … In this study, to calculate such flows in a short time without crushing computational elements, we proposed new approach called 'biaxial sliding mesh approach', which has multi sliding planes. …

    The Proceedings of the Fluids engineering conference 2014(0), _GS23-1_-_GS23-5_, 2014

    J-STAGE 

  • S112011 Wear of Cycloid Tooth Profile Gears  [in Japanese]

    INOUE Shotaro , NAGAMURA Kazuteru , IKEJO Kiyotaka , SEYAMA Natsuhiko , NAKAGAWA Sinya , NAGATO Hidenori

    … The cycloid tooth profile gear has greater tooth surface strength (except at the pitch point) due to the mesh with the convex and the concave surfaces, and it also has high bending strength. … The method employs two equations: one based on Soda's wear model under lubricated condition; … Using these equations, the wear depth on the tooth surface was calculated with changing of the contact stress, the sliding velocity, the oil film thickness, etc. …

    The Proceedings of Mechanical Engineering Congress, Japan 2013(0), _S112011-1-_S112011-5, 2013

    J-STAGE 

  • S111042 Fundamental Discussions on Internal-Gear Skiving  [in Japanese]

    MORIWAKI Ichiro , HASEGAWA Tomohiro , NAKAMURA Morimasa , URIU Kouichiro , NAGATA Eiri , KOBAYASHI Yoshinori

    … Gear skiving is not a new method. … It is a gear cutting method with a gear-type tool in which work- and tool-gears mesh with each other with a shaft angle between their axes, and the tool-gear is fed along the work-gear axis. … The shaft angle yields flank sliding along a gear axis which can play a cutting action. … Therefore, skiving can be expected to realize a high productive gear cutting method especially for internal gears. …

    The Proceedings of Mechanical Engineering Congress, Japan 2012(0), _S111042-1-_S111042-2, 2012

    J-STAGE 

  • G619 LES Analysis of Compression Wave as Generated by a High-speed Train Entering a Tunnel  [in Japanese]

    NAKAYAMA Sho , TSUBOKURA Makoto , ABE Yukinobu , OSHIMA Nobuyuki

    … This simulation uses weakly-compressible fluid with involvement of viscosity analysis method and sliding mesh method. …

    The Proceedings of the Fluids engineering conference 2012(0), 561-562, 2012

    J-STAGE 

  • Development of a Measurement Method of Contact Pressure between Gear Teeth Using a Thin-Film Sensor (Measurement of Pressure Distribution by Multi-Point Pressure Sensor with Shared Lead Films)

    OWASHI Michiyasu , MIHARA Yuji

    … In order to investigate the durability of the sliding surface of machinery, it is important to know the force acting on such parts and to evaluate stress distribution. … For this reason, the authors developed a thin-film pressure sensor with a thickness of approximately 6μm for gear tooth surfaces by applying the same type of sensors which have been developed to measure oil-film pressure distribution in engine sliding surfaces, such as plain bearing and piston-pin bosses. …

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 77(782), 3938-3950, 2011

    J-STAGE 

  • G050092 Influence of the obstacle boards in tunnel on the breathing effect in the canal structured road  [in Japanese]

    MIZUNO Akisato , TSUTAKI Takaya

    … A continuous running of the cars is imitated by the sliding mesh function by using 3D numerical analysis as a method for analysis. …

    The Proceedings of Mechanical Engineering Congress, Japan 2011(0), _G050092-1-_G050092-5, 2011

    J-STAGE 

  • SURGICAL TREATMENT OF HIATUS HERNIA IN ADULTS-REPORT OF THREE CASES-  [in Japanese]

    SUZUKI Akihiro , SAKURAI Shintaro , TAKETA Takashi , SUDO Kazuki , SHIOZAKI Hironori , ONODERA Hisashi

    … Herein, we report 2 cases of Bochdalek hernia and 1 case of a large sliding esophageal hiatal hernia that needed surgical treatment with prosthesis between February and November 2007. … We repaired the large defects of diaphragmas with ePTFE meshes (Gore-Tex mesh) to prevent respiratory and gastrointestinal complications. … No previous studies have attempted to determine the size range of diaphragma defects that could be repaired using prosthesis such as Gore-Tex mesh. …

    Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) 71(8), 2005-2010, 2010

    J-STAGE 

  • S0503-4-2 Numerical analysis for performance evaluation of a Straight Wings Vertical-Axis Wind Turbine  [in Japanese]

    WAKISAKA Eisuke , MIZUNO Akisato

    … As the turbulence model DES was used and sliding-mesh scheme was applied to express rotation. … We found that 4 time steps per mesh length were suitable to analyze the sliding scheme. …

    The proceedings of the JSME annual meeting 2010.2(0), 127-128, 2010

    J-STAGE 

  • MS2-3: A Finite-Element Based Mesh Motion Technique For Internal Combustion Engine Simulations(MS: Modeling and Simulation,General Session Papers)

    Lucchini T. , D'Errico G. , Brusiani F. , Bianchi G. M.

    … This work presents two different approaches developed by the authors for mesh motion in internal combustion engine simulations. … The first one is based on the use of multiple meshes to cover the whole simulation: within its crank angle validity interval, the grid points are moved by using an automatic mesh motion technique based on Laplace's equation and finite-element decomposition of the polyhedral mesh. …

    The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines 2008.7(0), 671-678, 2008

    J-STAGE 

  • 703 Numerical simulation of flow around Vertical Axis Wind Turbine with Large Eddy Simulation(2)  [in Japanese]

    IIDA Akiyoshi , KATO Keiichi , MIZUNO Akisato

    … Large Eddy Simulation with sliding mesh technique was utilized to solve the complicated flow around the VAWT. … It revealed that the LES is suitable method to estimate the performance of VAWT.. …

    The Proceedings of the Fluids engineering conference 2007(0), _703-1_-_703-4_, 2007

    J-STAGE 

  • On an Accuracy of Radiation Efficiency Measurement of Small Antennas using Improved Wheeler Method  [in Japanese]

    KANEKO Takayuki , ISHII Nozomu , MIYAKAWA Michio

    … We measured a radiation efficiency of monopole antennas using Improved Wheeler Method. … So, avoiding it and we succeeded in improving accuracy of Improved Wheeler Method. … In the case of a waveguide which is used our measurement, when the Sliding Short is inserted into waveguide, an air gap exists between waveguide wall and the side of Sliding Short. … If the air gap is filled with metallic mesh, the dips of efficiency are avoided. …

    Technical report of IEICE. RCS 103(459), 111-115, 2003-11-20

    References (10)

  • On an Accuracy of Radiation Efficiency Measurement of Small Antennas using Improved Wheeler Method  [in Japanese]

    KANEKO Takayuki , ISHII Nozomu , MIYAKAWA Michio

    … We measured a radiation efficiency of monopole antennas using Improved Wheeler Method. … So, avoiding it and we succeeded in improving accuracy of Improved Wheeler Method. … In the case of a waveguide which is used our measurement, when the Sliding Short is inserted into waveguide, an air gap exists between waveguide wall and the side of Sliding Short. … If the air gap is filled with metallic mesh, the dips of efficiency are avoided. …

    IEICE technical report. Antennas and propagation 103(456), 111-115, 2003-11-13

    References (10) Cited by (1)

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