Explanipedia

Fluid-Structure Interaction Analysis of the Thoracic Aortic Dissection by Using Elmer Open

Kota KITASHIMA, Katsuhiko SASAKI, Ryo Takeda, Shinya Honda, H Yokoyama , et al. · 2022

The aorta is an important artery that carries the blood pumped out of the heart and mainly consists of the ascending aorta (Ascending Aorta, AAo), the aortic arch (Arch of Aorta), and the descending aorta (Descending Aorta, DAo). Aortic di…

Numerical Analysis of free-falling small water droplet behavior in the air Open

Yuuya KITAMURA, Akiyoshi Kuroda · 2022

Researches on free-falling water droplet have been conducted in a long time. However, there are few numerical analyses closing to realistic free-falling phenomenon. In this study, We developed a two-phase flow analyses program based on CCU…

Fluid Structure Interaction Analysis of Aorta Using OpenFOAM and CalculiX Open

Toshiki NARA, Hideyoshi Takashima, Chenyu Li, Ryo Takeda, Katsuhiko SASAKI , et al. · 2022

Currently, biomechanical simulations of blood vessels and organs are widely used in medical research, and it is expected to realize rapid and accurate medical diagnosis by personalized biological simulations for each individual using high-…

MLPerf HPC: A Holistic Benchmark Suite for Scientific Machine Learning on HPC Systems Open

Steven Farrell, Murali Emani, Jacob Balma, Lukas Drescher, Aleksandr Drozd , et al. · 2021

Scientific communities are increasingly adopting machine learning and deep learning models in their applications to accelerate scientific insights. High performance computing systems are pushing the frontiers of performance with a rich div…

Numerical analysis on performance of airfoil-shaped heat exchanger by OpenFOAM Open

Mitsuaki TAKEMOTO, Akiyoshi Kuroda, Tsuyoshi TOTANI, Masahiko Yamada · 2021

To improve the energy efficiency, it is important to increase the heat transfer coefficient per flow resistance. Previous studies have reported that the airfoil tube provides a better heat transfer coefficient per flow resistance than the …

Numerical analysis of flow and heat transfer characteristics of a cylinder with rotational vibration Open

Shunichi Shirato, Akiyoshi Kuroda · 2021

Numerical simulations were conducted by using OpenFOAM to investigate the flow and heat transfer characteristics around a heating cylinder with rotational vibration. In a previous study, it was reported that the drag force of a rotating os…

New parallel computing algorithm of molecular dynamics for extremely huge scale biological systems Open

Jaewoon Jung, Chigusa Kobayashi, Kento Kasahara, Cheng Tan, Akiyoshi Kuroda , et al. · 2020

In this paper, we address high performance extreme‐scale molecular dynamics (MD) algorithm in the GENESIS software to perform cellular‐scale molecular dynamics (MD) simulations with more than 100,000 CPU cores. It includes (1) the new algo…

Detection of water content distribution and phase change in bio tissue using near-infrared Open

Taro Yoneda, Masahiko Yamada, Tsuyoshi TOTANI, Akiyoshi Kuroda · 2020

In order to enable high quality cryopreservation of foods and bio tissue, it is necessary to consider the effect of the texture on the formation and melting of ice crystals in the cell and tissue. In addition to the above, it is necessary …

Acceleration of Bone Healing by In Situ-Forming Dextran-Tyramine Conjugates Containing Basic Fibroblast Growth Factor in Mice Open

Shintaro Shoji, Kentaro Uchida, Wataru Saito, Hiroyuki Sekiguchi, Gen Inoue , et al. · 2020

An enzymatic crosslinking strategy using hydrogen peroxide (H₂O₂) and horseradish peroxidase (HRP) has been receiving increasing attention for use with in situ-formed hydrogels (IFHs). Several studies have reported th…

Fluid-Structure Interaction Analysis of Stanford A Type Aortic Dissectio Open

Fumiya Sato, Junnan Chen, Ryo Takeda, Shinya Honda, Katsuhiko SASAKI , et al. · 2020

Phase-Change Heat Transfer of Ice-Slurry Flow Around Horizontal Heated Tubes with Longitudinal Fins Open

Takuma Okada, Masahiko Yamada, Tsuyoshi TOTANI, Akiyoshi Kuroda, Yuto Sasaki · 2019

Ice slurry has been widely utilized as thermal storage medium due to its high storage density of thermal energy and liquidity. In the heat exchange process of ice slurry through the heated exchanger, its high storage density would not be f…

Fluid-Structure Interaction Analysis of Aortic Dissection Using Open Source Open

Junnan Chen, Katsuhiko SASAKI, Shinya Honda, Ryo Takeda, Nobuyuki Oshima , et al. · 2019

The aorta is the thickest blood vessel in the human body. It is a strong and elastic blood vessel consisting of three layers: the intima, the tunica media, and the adventitia. Aortic dissection occurs when the intima tears and a new channe…

Numerical analysis of free-falling liquid droplet by level set method and CCUP method Open

Kensuke YOSHII, Akiyoshi Kuroda · 2019

Researches on free fall of liquid droplets have been conducted for a long time. And in these days numerical simulations of two-phase flow are carried out. However, there are few numerical analyses of long term free fall of a liquid droplet…

Numerical analysis of airfoil-shaped heat exchanger by OpenFOAM Open

Takanobu Tsuji, Akiyoshi Kuroda · 2018

Numerical simulation of convection heat transfer from airfoil-shaped tube by using OpenFOAM. OpenFOAM is a C++ toolbox for the development of customized numerical solvers and processing utilities for the solution of heat transfer. Flow and…

Estimation of Blood Flow and Wall Shear Stress after Aortic Dissection by CFD Open

Kodai KIJIMA, Ryo Takeda, Hirokazu Yokoyama, Akiyoshi Kuroda, Nobuyuki Oshima , et al. · 2017

Strength of Resin Composite Material Containing Microencapsulated Phase Change Material (MPCM) Open

Yusuke Tomizawa, Katsuhiko SASAKI, Akiyoshi Kuroda, Ryo Takeda · 2016

In recent years, phase change materials (PCMs) have attracted attention as a temperature regulator for electronic devices. Resin composite materials containing microencapsulated PCM (MPCM) are needed in order to secure the mass of PCM in t…

Deformation and Constitutive Model of Resin Composite Material Containing Microencapsulated Phase Change Material (MPCM) Open

Yusuke Tomizawa, Katsuhiko SASAKI, Akiyoshi Kuroda, Ryo Takeda · 2016

In recent years, phase change materials (PCMs) have attracted attention as a temperature regulator for electronic devices. Resin composite materials containing microencapsulated PCM (MPCM) are needed in order to secure the mass of PCM in t…

Deformation Analysis of Self-Expanding Stent Considering Plaque Characteristics Open

Tatsuya SAKAINO, Katsuhiko SASAKI, Akiyoshi Kuroda, Ryo Takeda · 2016

Experimental and numerical study on phase change material (PCM) for thermal management of mobile devices Open

Yusuke Tomizawa, Katsuhiko SASAKI, Akiyoshi Kuroda, Ryo Takeda, Yoshihiko Kaito · 2015

OS14-4 Phase Change Materials and High Thermal Conductive Materials for Thermal Management of Smart Phones(Semiconductor Devices and Electronic Packaging 2,OS14 Electronic and photonic packages,APPLICATIONS) Open

Yusuke Tomizawa, Katsuhiko SASAKI, Akiyoshi Kuroda, Yoshihiko Kaito · 2015

S0220304 Analysis of Stent Expansion Considering Blood Deformation Due to Pulse Flow Open

Amane HOSHINO, Akiyoshi Kuroda, Katsuhiko SASAKI, Ryo Takeda · 2015

Stenting is a common treatment of stenosis. One of problems of stent treatment is restenosis. Local hemodynamic factor such as low wall shear stress (WSS) is one of the reasons for restenosis. Therefore, blood flow analyses have been perfo…

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