Search Results - "Fukudome, Koji"

Numerical simulation of the solidification phenomena of single molten droplets impinging on non-isothermal flat plate using explicit moving particle simulation method by Fukudome, Koji, Muto, Yusuke, Yamamoto, Ken, Mamori, Hiroya, Yamamoto, Makoto

“…•Performed E-MPS simulations of deposition phenomena on a substrate.•Solidification phenomena of a single molten stannum (Sn) droplet was studied.•Reproduced…”
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Heat transfer enhancement and torque reduction by traveling wave-like blowing and suction in turbulent Taylor-Couette flow by MAMORI, Hiroya, FUKUDOME, Koji, OGINO, Kohei, FUKUSHIMA, Naoya, YAMAMOTO, Makoto

“…Direct numerical simulations of turbulent Taylor-Couette flows are performed to investigate the effect of a traveling wave control on torque and heat transfer…”
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Three-Dimensional Trajectory and Impingement Simulation of Ice Crystals Considering State Changes on the Rotor Blade of an Axial Fan by Hirose, Koichiro, Fukudome, Koji, Mamori, Hiroya, Yamamoto, Makoto

“…Ice crystal icing occurs in jet engine compressors, which can severely degrade jet engine performance. In this study, we developed an ice crystal trajectory…”
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Computational fluid dynamic analysis of the initiation of cerebral aneurysms by Fujimura, Soichiro, Tanaka, Kazutoshi, Takao, Hiroyuki, Okudaira, Takuma, Koseki, Hirokazu, Hasebe, Akiko, Suzuki, Takashi, Uchiyama, Yuya, Ishibashi, Toshihiro, Otani, Katharina, Karagiozov, Kostadin, Fukudome, Koji, Hayakawa, Motoharu, Yamamoto, Makoto, Murayama, Yuichi

“…Relationships between aneurysm initiation and hemodynamic factors remain unclear since de novo aneurysms are rarely observed. Most previous computational fluid…”
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Computational Experiments on the Step and Frequency Responses of a Three-Axis Thermal Accelerometer by Ogami, Yoshifumi, Murakita, Naoya, Fukudome, Koji

“…The sensor response has been reported to become highly nonlinear when the acceleration added to a thermal accelerator is very large, so the same response can…”
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Effects of different stent wire mesh densities on hemodynamics in aneurysms of different sizes by Masuda, Shunsuke, Fujimura, Soichiro, Takao, Hiroyuki, Takeshita, Kohei, Suzuki, Takashi, Uchiyama, Yuya, Karagiozov, Kostadin, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Intracranial stents are used to treat aneurysms by diverting the blood flow from entering into the aneurysmal dome. Although delayed rupture is rare, clinical…”
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Numerical Simulation of the Anti-Icing Performance of Electric Heaters for Icing on the NACA 0012 Airfoil by Uranai, Sho, Fukudome, Koji, Mamori, Hiroya, Fukushima, Naoya, Yamamoto, Makoto

“…Ice accretion is a phenomenon whereby super-cooled water droplets impinge and accrete on wall surfaces. It is well known that the icing may cause severe…”
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Effect of Characteristic Phenomena and Temperature on Super-Cooled Large Droplet Icing on NACA0012 Airfoil and Axial Fan Blade by Takahashi, Toma, Fukudome, Koji, Mamori, Hiroya, Fukushima, Naoya, Yamamoto, Makoto

“…Icing simulations involving super-cooled large droplets (SLDs) on a NACA0012 airfoil and a commercial axial fan were performed considering the characteristic…”
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Hemodynamic and Morphologic Factors Related to Coil Compaction in Basilar Artery Tip Aneurysms by Ishii, Takumi, Fujimura, Soichiro, Takao, Hiroyuki, Uchiyama, Yuya, Okudaira, Takuma, Ishibashi, Toshihiro, Otani, Katharina, Karagiozov, Kostadin, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Coil compaction is directly related to the degree of cerebral aneurysmal recanalization. The degree of recanalization (DoR) was quantified by measuring the…”
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Evaluation of Anti-Icing Performance for an NACA0012 Airfoil with an Asymmetric Heating Surface by Fukudome, Koji, Tomita, Yuki, Uranai, Sho, Mamori, Hiroya, Yamamoto, Makoto

“…Heating devices on airfoil surfaces are widely used as an anti-icing technology. This study investigated the aerodynamic performance with a static heating…”
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Hemodynamic Investigation of the Effectiveness of a Two Overlapping Flow Diverter Configuration for Cerebral Aneurysm Treatment by Uchiyama, Yuya, Fujimura, Soichiro, Takao, Hiroyuki, Suzuki, Takashi, Hayakawa, Motoharu, Ishibashi, Toshihiro, Karagiozov, Kostadin, Fukudome, Koji, Murayama, Yuichi, Yamamoto, Makoto

“…Flow diverters (FDs) are widely employed as endovascular treatment devices for large or wide-neck cerebral aneurysms. Occasionally, overlapped FDs are deployed…”
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Abstract Number ‐ 58: Effects of Neck Geometry on Reccurence in CFD Analysis for Aneurysms after Low VER Coiling by Uchikawa, Hayato, Takao, Hiroyuki, Fujimura, Soichiro, Kasai, Tomoki, Sunami, Shota, Yuzawa, Kazuya, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Introduction Although low volume embolization ratio is known as risk factor of aneurysmal recanalization, stable occlusion can be achieved in limited cases…”
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Abstract Number ‐ 130: Comparison of the Stents Length by Virtual Stent Simulation with the Actual Stent Length by Yuzawa, Kazuya, Ishibashi, Toshihiro, Takao, Hiroyuki, Fujimura, Soichiro, Sunami, Shota, Kasai, Tomoki, Uchikawa, Hayato, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction The selection of the size of a braided stent, such as the flow diverter stent, currently depends on the surgeon’s experience…”
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Heat and momentum transfer of turbulent stripe in transitional-regime plane Couette flow by Fukudome, Koji, Tsukahara, Takahiro, Ogami, Yoshifumi

“…Direct numerical simulations using a spectral method of plane Couette flow were performed to clarify the dissimilarity between heat and momentum transport for…”
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Abstract Number ‐ 57: Investigation on Hemodynamic Force Related to Thin‐walled Regions in Intracranial Aneurysm by Using CFD by Masuda, Kazunori, Kakizaki, Shota, Nagayama, Gota, Kato, Naoki, Takao, Hiroyuki, Fujimura, Soichiro, Sunami, Shota, Kasai, Tomoki, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Introduction Although thin‐walled regions (TWRs) in an intracranial aneurysm have a risk of rupture due to contact with surgical instruments, imaging…”
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Abstract Number ‐ 56: Investigation of Aneurysmal Initiation Factor with Experimental Animal Model by Computational Fluid Dynamics Analysis by Kasai, Tomoki, Koseki, Hirokazu, Takao, Hiroyuki, Fujimura, Soichiro, Kato, Naoki, Kan, Issei, Sunami, Shota, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction Hemodynamics has been reported to be involved in the pathophysiology of the initiation of intracranial aneurysms. Computational…”
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Abstract Number ‐ 59: Study on Rupture Prediction Model for Small Unruptured Cerebral Aneurysms Using Random Forest by Sunami, Shota, Takao, Hiroyuki, Fujimura, Soichiro, Kudo, Genki, Kasai, Tomoki, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction Hemodynamic, morphological, and clinical factors have been reported to be involved in aneurysm rupture. Hemodynamic factors could be…”
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Numerical simulation of solidification phenomena of single molten droplet on flat plate using E-MPS method by Shinichiro KONDO, Hiroya MAMORI, Naoya FUKUSHIMA, Koji FUKUDOME, Makoto YAMAMOTO

“…When sand particles and volcanic ash are ingested into jet engines, they become molten droplets and are solidified on the surfaces of the turbine blades and…”
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High-Speed impact experiment for evaluation of magnetorheological fluid’s shock-absorption performance by Mitani, Yuya, Yano, Takahiro, Hagi, Takuyoh, Watanabe, Keiko, Fukudome, Koji

“…Magnetorheological (MR) fluids are categorized as smart fluids, which are made of small iron particles suspended in carrier fluids such as silicone oil. The…”
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Large-Scale Flow Structure in Turbulent Poiseuille Flows at Low-Reynolds Numbers by Koji FUKUDOME, Oaki IIDA

“…Direct numerical simulations of a spectral method are performed to study the turbulent channel flow at the low-Reynolds numbers, where the quasi-laminar and…”
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