Faculty Profiles - TAMAGAWA Masaaki

Papers - TAMAGAWA Masaaki

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CFD Analysis on Effect of Angulation in A Healthy Abdominal Aorta-Renal Artery Junction Reviewed

Hegde P., Shenoy B.G., Khader S.M.A., Pai B.R., Rao D.S., Tamagawa M., Prabhu R., Kumar N., Ahmad K.A.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 88 ( 1 ) 149 - 165 2021.12

Computational flow analysis of a single peristaltic wave propagation in the ureter Reviewed

Keni L.G., Hayoz M.J., Khader S.M.A., Hegde P., Prakashini K., Tamagawa M., Satish Shenoy B., Hameed B.M.Z., Zuber M.

Computer Methods and Programs in Biomedicine 210 2021.10

Quantitative haemodynamic study in renal artery bifurcation using CFD Reviewed

Hegde P., Kanjalkar S., Khader S.M.A., Shenoy B.G., Pai B.R., Tamagawa M., Prabhu R., Rao D.S.

Journal of Engineering Science and Technology 16 ( 5 ) 4079 - 4099 2021.10

Language：English Publishing type：Research paper (scientific journal)

Computational Fluid Dynamics facilitates in the quantitative analysis of haemodynamic processes of in vivo cardiovascular systems. The objective of the present study is to examine the effects of different branching angles of diseased renal arteries with respect to the abdominal aorta on its flow characteristics. Secondly, simulation of normal renal arteries at similar branching angles were also done as a baseline for comparison to comprehend if geometry played a role in the endothelial proliferation in renal artery stenosis. Idealistic renal artery models generated from the digital image of computerized tomography scan were used, with bifurcation angles at the junction ranging from 30° to 90° at successive intervals of 15°. Virtual stenosis of a degree below and above 80% by diameter were generated on the right and left renal artery respectively. The models were discretized using a hybrid polyhedral mesh. Parameters such as time-averaged velocity, time-averaged wall shear stress, pressure difference and fractional flow reserve were used to analyse the flow characteristics. Stenosed renal arteries with higher angulation was found to have larger flow recirculation zones, higher pressure gradient near the Ostia and was observed to experience greater amounts of shear stress at the region of stenosis. For the same degree of stenosis (above 80%), the blockage tended to increase from 18% to 25%, as the angle increased. The effect of angulation was observed to alter the flow characteristics significantly in the stenosed arteries. Critically stenosed (above 80%) renal arteries at a bifurcation angle above 45° showed signs of ischemia.

Scopus

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85117882357&origin=inward

Fluid-Structure Interaction in Problems of Patient Specific Transcatheter Aortic Valve Implantation with and Without Paravalvular Leakage Complication Reviewed International journal

Basri A.A., Zuber M., Basri E.I., Zakaria M.S., Aziz A.F.A., Tamagawa M., Ahmad K.A.

Fluid Dynamics and Materials Processing 17 ( 3 ) 531 - 553 2021.01

Language：English Publishing type：Research paper (scientific journal)

Paravalvular Leakage (PVL) has been recognized as one of the most dangerous complications in relation to Transcathether Aortic Valve Implantation (TAVI) activities. However, data available in the literature about Fluid Structure Interaction (FSI) for this specific problem are relatively limited. In the present study, the fluid and structure responses of the hemodynamics along the patient aorta model and the aortic wall deformation are studied with the aid of numerical simulation taking into account PVL and 100% TAVI valve opening. In particular, the aorta without valve (AWoV) is assumed as the normal condition, whereas an aorta with TAVI 26 mm for 100% Geometrical Orifice Area (GOA) is considered as the patient aorta with PVL complication. A 3D patient-specific aorta model is elaborated using the MIMICS software. Implantation of the identical TAVI valve of Edward SAPIEN XT 26 (Edwards Lifes ciences, Irvine, California) is considered. An undersized 26 mm TAVI valve with 100% valve opening is selected to mimic the presence of PVL at the aortic annulus. The present research indicates that the existence of PVL can increase the blood velocity, pressure drop and WSS in comparison to normal conditions, thereby paving the way to the development of recirculation flow, thrombus formation, aorta wall collapse, aortic rupture and damage of endothelium.

DOI： 10.32604/fdmp.2021.010925

Scopus

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85110047368&origin=inward

Enhancement of Neutrophil Motion by Shock Waves for Developing New Cancer Immuno-Therapy –Effects of Surrounding Liquid Temperature and Maximum Pressure on Neutrophil Velocities– Reviewed International journal

Tamagawa Masaaki, Tabata Yoshikaze

ICIC Express Letters, Part B: Applications ( ICIC International ) 12 ( 1 ) 67 - 73 2021.01

Development of a novel hybrid method combining finite difference method and dissipative particle dynamics to simulate thrombus formation on orifice flow Reviewed International journal

Yi Y., Tamagawa M.

Computer Methods in Biomechanics and Biomedical Engineering 23 ( 10 ) 611 - 626 2020.04

Computational study on aerodynamic characteristics and behaviour of s5010 airfoil Reviewed International journal

Yazik M.H.M., Tamagawa M., Sultan M.T.H., Adzrif A.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 66 ( 1 ) 42 - 52 2020.02

Computational Study on Aerodynamic Characteristics and Behaviour of S5010 Airfoil Reviewed International journal

Muhamad Hasfanizam Mat Yazik , Masaaki Tamagawa , Mohamed Thariq Hameed Sultan , Adi Adzrif

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences ( PENERBIT AKADEMIA BARU ) 66 ( 1 ) 42 - 52 2020.02

Fluid Structure Interaction on Paravalvular Leakage of Transcatheter Aortic Valve Implantation Related to Aortic Stenosis: A Patient-Specific Case Reviewed International journal

Basri A.A., Zuber M., Basri E.I., Zakaria M.S., Aziz A.F.A., Tamagawa M., Ahmad K.A.

Computational and Mathematical Methods in Medicine 2020 2020.01

Significant attributes identification for indoor cycling fatigue classification Reviewed International journal

Tang S., Loh W.P., Tamagawa M.

AIP Conference Proceedings 2138 2019.08

Effects of impinging jet flow on platelets adhesion by computational fluid dynamics (CFD) analysis with consideration of particle motion for predicting thrombus formation Reviewed International journal

Nakata S., Miyamura Y., Tamagawa M.

ICIC Express Letters, Part B: Applications ( ICIC International ) 10 ( 8 ) 755 - 762 2019.08

Generation of micro-scale shock waves by focussing short-time pulse laser and measurement of pressure for development of regenerative cell-culture systems Reviewed International journal

Masaaki TAMAGAWA, Ruosuke TERAJIMA, Ryo SAKAI

Proc. of the 32nd International Shock Wave Symposium OR-08-1393.1 - OR-08-0393.4 OR-08-0393 (4 pages) 2019.07

Evaluation of Thrombus Formation around a Peripheral Intravenous Catheter for Infants Reviewed

Taishin Yamaguchi, Yuko Miyamura and Masaaki Tamagawa

Proc. of 6th International Conference on Computational & Mathematical Biomedical Engineering (CMBE2019) 2 805 - 808 2019.06

A Cartesian non-boundary fitted grid method on complex geometries and its application to the blood flow in the aorta using OpenFOAM Reviewed International journal

Zakaria M.S., Ismail F., Tamagawa M., Aziz A.F.A., Wiriadidjaja S., Basri A.A., Ahmad K.A.

Mathematics and Computers in Simulation 159 220 - 250 2019.05

FINITE ELEMENT ANALYSIS of URINARY BLADDER WALL THICKNESS at DIFFERENT PRESSURE CONDITION Reviewed International journal

Keni L.G., Kalburgi S., Hameed B.M.Z., Zuber M., Tamagawa M., Shenoy B.S.

Journal of Mechanics in Medicine and Biology 19 ( 5 ) 2019.01

Simulation of platelet aggregation on the wall of orifice flow by dissipative particle dynamics accelerated by openmp Reviewed

9 ( 7 ) 665 - 672 2018.07

Effects of flow asymmetricity on thrombus formation and hemolysis properties in the pipe orifice flow by CFD analysis Reviewed International journal

Hirayama C., Miyamura Y., Tamagawa M.

ICIC Express Letters, Part B: Applications 9 ( 7 ) 673 - 680 2018.07

Computational fluid dynamics study of blood flow in aorta using OpenFOAM Reviewed International journal

Zakaria M.S., Ismail F., Tamagawa M., Abdul Azi A.F., Wiriadidjaya S., Basri A.A., Ahmad K.A.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 43 ( 1 ) 81 - 89 2018.03

Development of Novel Hybrid Method using Finite Differnce Method and Dissipative Particle Dynamics for Prediction of Thrombus Formation Reviewed International journal

Yingming YI, Masaaki TAMAGAWA

HS025.1 - HS025.6 HS025 8pages 2017.12

Calculation of Skull Deformation by Falling using Human Dummy Model

Nakano Masahiro, Matsuura Hiroyuki, Tamagawa Masaaki, Yukimasa Toru, Ishikawa Kousuke, Yamanaka Makoto

Proceedings of the Annual Conference of Biomedical Fuzzy Systems Association ( Biomedical Fuzzy Systems Association ) 30 ( 0 ) 225 - 228 2017.11

Language：Japanese Publishing type：Research paper (conference, symposium, etc.)

In order to investigate various dangers of fall down, we have conducted the experiment using human dummy model in Japan Automobile Research Institute (JARI). We have measured accelerations inside of the head in time step of 1/10000 sec with the accuracy within 1%. From the acceleration, we calculate the time development of velocity and position of the center of the head. HIC and the deformation are calculated. for two backward falls from standing position. As a conclusion, we found the deformation of the skull is similar, about 2.4mm for two falls down, although their HIC are different from each other .

DOI： 10.24466/pacbfsa.30.0_225

CiNii Article

CiNii Research

Other Link： https://search.jamas.or.jp/link/ui/2019100617

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Papers - TAMAGAWA Masaaki