Division of Renewable Energy Dynamics

Research Output 1980 2020

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2020

3D numerical study of the asymmetric phenomenon in 200 mm floating zone silicon crystal growth

Han, X. F., Liu, X., Nakano, S., Harada, H., Miyamura, Y. & Kakimoto, K., Feb 15 2020, In : Journal of Crystal Growth. 532, 125403.

Research output: Contribution to journalArticle

Silicon
Crystallization
Crystal growth
floating
crystal growth

Theoretical study of adatom stability on polar GaN surfaces during MBE and MOVPE

Inatomi, Y. & Kangawa, Y., Feb 1 2020, In : Applied Surface Science. 502, 144205.

Research output: Contribution to journalArticle

Reconstruction (structural)
Gallium nitride
Gallium
Metallorganic vapor phase epitaxy
Surface reconstruction

Transient global modeling for the pulling process of Czochralski silicon crystal growth. I. Principles, formulation, and implementation of the model

Liu, X., Harada, H., Miyamura, Y., Han, X. F., Nakano, S., Nishizawa, S. I. & Kakimoto, K., Feb 15 2020, In : Journal of Crystal Growth. 532, 125405.

Research output: Contribution to journalArticle

pulling
Silicon
Crystallization
Crystal growth
crystal growth

Transient global modeling for the pulling process of Czochralski silicon crystal growth. II. Investigation on segregation of oxygen and carbon

Liu, X., Harada, H., Miyamura, Y., Han, X. F., Nakano, S., Nishizawa, S. I. & Kakimoto, K., Feb 15 2020, In : Journal of Crystal Growth. 532, 125404.

Research output: Contribution to journalArticle

pulling
Silicon
Crystallization
Crystal growth
crystal growth
2019
3 Citations (Scopus)
Open Access
Wind Turbine
Large Eddy Simulation
Large eddy simulation
Wind turbines
Farms
1 Citation (Scopus)

A micromechanical model for the analysis of multidirectional fiber reinforced polymer laminates

Deng, X., Hu, J., Wang, W. X. & Matsubara, T., Jan 15 2019, In : Composite Structures. 208, p. 507-516 10 p.

Research output: Contribution to journalArticle

Laminates
Polymers
Carbon fibers
Fibers
Debonding
2 Citations (Scopus)

An actuator line - immersed boundary method for simulation of multiple tidal turbines

Liu, C. & Hu, C., Jun 1 2019, In : Renewable Energy. 136, p. 473-490 18 p.

Research output: Contribution to journalArticle

Turbines
Actuators
Rotors
Wall function
Computational efficiency
2 Citations (Scopus)

A novel tab for tensile testing of unidirectional thermoplastic composites

Tahir, M. M., Wang, W. & Matsubara, T., Jan 1 2019, In : Journal of Thermoplastic Composite Materials. 32, 1, p. 37-51 15 p.

Research output: Contribution to journalArticle

Tensile testing
Thermoplastics
carbon fibers
Polyamides
Carbon fibers
1 Citation (Scopus)

A study on a floating type shrouded wind turbine: Design, modeling and analysis

Zhu, H., Makoto, S., Hu, C. & Yoshida, S., Apr 1 2019, In : Renewable Energy. p. 1099-1113 15 p.

Research output: Contribution to journalArticle

Wind turbines
Towers
Bearings (structural)
Mooring
Hinges

A study on smoothed particle hydrodynamics for liquid metal flow simulation

Salami, J. A., Hu, C. & Hanada, K., Sep 2019, In : Evergreen. 6, 3, p. 190-199 10 p.

Research output: Contribution to journalArticle

Flow simulation
Liquid metals
physics
Hydrodynamics
Physics

Catalytic Synthesis of Nitric Monoxide at the AlN(0001) Surface: Ab Initio Analysis

Strak, P., Sakowski, K., Kempisty, P., Grzegory, I. & Krukowski, S., May 2 2019, In : Journal of Physical Chemistry C. 123, 17, p. 10893-10906 14 p.

Research output: Contribution to journalArticle

Adatoms
Nitrogen
adatoms
Adsorption
nitrogen

CFD simulation of tidal current farm by using AL model

Liu, C. & Hu, C., Feb 1 2019, In : Journal of Hydrodynamics. 31, 1, p. 34-40 7 p.

Research output: Contribution to journalArticle

Immersed Boundary Method
CFD Simulation
turbines
Turbine
Wake
2 Citations (Scopus)

CH 4 Adsorption Probability on GaN(0001) and (000-1) during Metalorganic Vapor Phase Epitaxy and Its Relationship to Carbon Contamination in the Films

Kusaba, A., Li, G., Kempisty, P., von Spakovsky, M. R. & Kangawa, Y., Mar 1 2019, In : Materials. 16, 6, 972.

Research output: Contribution to journalArticle

Open Access
Metallorganic vapor phase epitaxy
Contamination
Carbon
Adsorption
Thermodynamics
1 Citation (Scopus)
Free energy
free energy
Phase diagrams
phase diagrams
Density functional theory
1 Citation (Scopus)

Experimental study of the interaction of dambreak with a vertical cylinder

Kamra, M. M., Al Salami, J., Makoto, S. & Hu, C., Apr 1 2019, In : Journal of Fluids and Structures. 86, p. 185-199 15 p.

Research output: Contribution to journalArticle

Dams
Circular cylinders
Pressure measurement
Momentum
Mechanics

First-Principles Calculation of Bandgaps of Al1−xInxN Alloys and Short-Period Al1−xInxN/Al1−yInyN Superlattices

Kawamura, T., Fujita, Y., Hamaji, Y., Akiyama, T., Kangawa, Y., Gorczyca, I., Suski, T., Wierzbowska, M. & Krukowski, S., Jan 1 2019, (Accepted/In press) In : Physica Status Solidi (B) Basic Research. 1900530.

Research output: Contribution to journalArticle

Superlattices
superlattices
Energy gap
Chemical analysis
pseudopotentials

First-principle study of ammonia decomposition and nitrogen incorporation on the GaN surface in metal organic vapor phase epitaxy

Bui, K. M., Iwata, J. I., Kangawa, Y., Shiraishi, K., Shigeta, Y. & Oshiyama, A., Feb 1 2019, In : Journal of Crystal Growth. 507, p. 421-424 4 p.

Research output: Contribution to journalArticle

Vapor phase epitaxy
Ammonia
vapor phase epitaxy
ammonia
Nitrogen
1 Citation (Scopus)
Open Access
Mesh generation
Parallel Simulation
Meshing
High Performance
Domain decomposition methods

In-situ measurement of CO gas concentration in a Czochralski furnace of silicon crystals

Miyamura, Y., Harada, H., Liu, X., Nakano, S., Nishizawa, S. & Kakimoto, K., Feb 1 2019, In : Journal of Crystal Growth. 507, p. 154-156 3 p.

Research output: Contribution to journalArticle

Silicon
Carbon Monoxide
in situ measurement
furnaces
contamination
wind turbine
wind wave
wave energy
Wind turbines
experimental study
1 Citation (Scopus)

Kinetic-thermodynamic model for carbon incorporation during step-flow growth of GaN by metalorganic vapor phase epitaxy

Inatomi, Y., Kangawa, Y., Pimpinelli, A. & Einstein, T. L., Jan 2 2019, In : Physical Review Materials. 3, 1, 013401.

Research output: Contribution to journalArticle

Metallorganic vapor phase epitaxy
vapor phase epitaxy
Carbon
Thermodynamics
Partial pressure
2 Citations (Scopus)

New assessment scales for evaluating the degree of risk of wind turbine blade damage caused by terrain-induced turbulence

Uchida, T. & Kawashima, Y., Jan 1 2019, In : Energies. 12, 13, 2624.

Research output: Contribution to journalArticle

Open Access
Turbine Blade
Wind Turbine
Wind turbines
Turbomachine blades
Turbulence
1 Citation (Scopus)
Open Access
Surface Roughness
Numerical Investigation
Turbulence
High Resolution
Digital Elevation Model

Power output enhancement of a ducted wind turbine by stabilizing vortices around the duct

Watanabe, K., Ohya, Y. & Uchida, T., Aug 18 2019, In : Energies. 12, 16, en12163171.

Research output: Contribution to journalArticle

Open Access
Wind Turbine
Wind turbines
Ducts
Vortex
Vortex flow

Thermodynamic analysis of semipolar gan and aln under metalorganic vapor phase epitaxy growth conditions

Seta, Y., Pradipto, A. M., Akiyama, T., Nakamura, K., Ito, T., Kusaba, A. & Kangawa, Y., Jan 1 2019, In : Japanese Journal of Applied Physics. 58, SC, SC1014.

Research output: Contribution to journalArticle

Open Access
Metallorganic vapor phase epitaxy
vapor phase epitaxy
Thermodynamics
thermodynamics
Nitrides
2 Citations (Scopus)

Time-dependent behavior of melt flow in the industrial scale silicon Czochralski growth with a transverse magnetic field

Yokoyama, R., Nakamura, T., Sugimura, W., Ono, T., Fujiwara, T. & Kakimoto, K., Aug 1 2019, In : Journal of Crystal Growth. 519, p. 77-83 7 p.

Research output: Contribution to journalArticle

Open Access
Crystal growth from melt
Silicon
Magnetic fields
Computer simulation
silicon
2018
1 Citation (Scopus)

3D Global Heat Transfer Model on Floating Zone for Silicon Single Crystal Growth

Han, X. F., Liu, X., Nakano, S., Harada, H., Miyamura, Y. & Kakimoto, K., May 1 2018, In : Crystal Research and Technology. 53, 5, 1700246.

Research output: Contribution to journalArticle

Silicon
Crystallization
Crystal growth
floating
crystal growth

3D numerical simulation of free surface shape during the crystal growth of floating zone (FZ) silicon

Han, X. F., Liu, X., Nakano, S., Harada, H., Miyamura, Y. & Kakimoto, K., Feb 1 2018, In : Journal of Crystal Growth. 483, p. 269-274 6 p.

Research output: Contribution to journalArticle

Silicon
Crystallization
Crystal growth
floating
crystal growth
5 Citations (Scopus)

An adaptive multi-moment FVM approach for incompressible flows

Liu, C. & Hu, C., Apr 15 2018, In : Journal of Computational Physics. 359, p. 239-262 24 p.

Research output: Contribution to journalArticle

incompressible flow
Incompressible flow
finite volume method
Finite volume method
interpolation
1 Citation (Scopus)

A reliable open-source package for performance evaluation of floating renewable energy systems in coastal and offshore regions

Liu, Y., Yoshida, S., Hu, C., Makoto, S., Sun, L., Gao, J., Cong, P. & He, G., Oct 15 2018, In : Energy Conversion and Management. 174, p. 516-536 21 p.

Research output: Contribution to journalArticle

Software packages
Green's function
Computer simulation
Costs
3 Citations (Scopus)

Block-based adaptive mesh refinement for fluid–structure interactions in incompressible flows

Liu, C. & Hu, C., Nov 1 2018, In : Computer Physics Communications. 232, p. 104-123 20 p.

Research output: Contribution to journalArticle

incompressible flow
Incompressible flow
falling
interpolation
Interpolation
8 Citations (Scopus)
Wind Turbine
Computational Fluid Dynamics
Accidents
Japan
Wind turbines
5 Citations (Scopus)

Computational fluid dynamics approach to predict the actualwind speed over complex terrain

Uchida, T., Jan 1 2018, In : Energies. 11, 7, 1694.

Research output: Contribution to journalArticle

Wind Speed
Computational Fluid Dynamics
Computational fluid dynamics
Predict
Time series
1 Citation (Scopus)

Determination of C concentration in P-doped n-type Czochralski-grown Si crystals by liquid N temperature photoluminescence after electron irradiation

Ishikawa, Y., Tajima, M., Kiuchi, H., Ogura, A., Miyamura, Y., Harada, H. & Kakimoto, K., Aug 1 2018, In : Japanese Journal of Applied Physics. 57, 8, 08RB06.

Research output: Contribution to journalArticle

Electron irradiation
electron irradiation
Photoluminescence
photoluminescence
Crystals

Do thermal donors reduce the lifetimes of Czochralski-grown silicon crystals?

Miyamura, Y., Harada, H., Nakano, S., Nishizawa, S. & Kakimoto, K., May 1 2018, In : Journal of Crystal Growth. 489, p. 1-4 4 p.

Research output: Contribution to journalArticle

Silicon
life (durability)
Crystals
silicon
crystals
2 Citations (Scopus)

Effect of controlled crucible movement on melting process and carbon contamination in Czochralski silicon crystal growth

Liu, X., Han, X. F., Nakano, S. & Kakimoto, K., Feb 1 2018, In : Journal of Crystal Growth. 483, p. 241-244 4 p.

Research output: Contribution to journalArticle

Crucibles
Silicon
crucibles
Crystallization
Crystal growth
2 Citations (Scopus)

Effect of oxygen on dislocation multiplication in silicon crystals

Fukushima, W., Harada, H., Miyamura, Y., Imai, M., Nakano, S. & Kakimoto, K., Mar 15 2018, In : Journal of Crystal Growth. 486, p. 45-49 5 p.

Research output: Contribution to journalArticle

Silicon
Dislocations (crystals)
multiplication
Oxygen
Crystals
3 Citations (Scopus)

Failure behavior of quasi-isotropic carbon fiber-reinforced polyamide composites under tension

Mohd Tahir, M., Wang, W. & Matsubara, T., Sep 3 2018, In : Advanced Composite Materials. 27, 5, p. 483-497 15 p.

Research output: Contribution to journalArticle

Nylons
Polyamides
Carbon fibers
Laminates
Composite materials

First-principles study of polar, nonpolar, and semipolar GaN surfaces during oxide vapor phase epitaxy growth

Kawamura, T., Kitamoto, A., Imade, M., Yoshimura, M., Mori, Y., Morikawa, Y., Kangawa, Y., Kakimoto, K. & Akiyama, T., Nov 1 2018, In : Japanese Journal of Applied Physics. 57, 11, 115504.

Research output: Contribution to journalArticle

Vapor phase epitaxy
vapor phase epitaxy
Oxides
oxides
Desorption
10 Citations (Scopus)
Economic and social effects
Wind Turbine
Large Eddy Simulation
Large eddy simulation
Wind turbines
3 Citations (Scopus)

Numerical analyses and experimental validations on transport and control of carbon in Czochralski silicon crystal growth

Liu, X., Harada, H., Miyamura, Y., Han, X. F., Nakano, S., Nishizawa, S. & Kakimoto, K., Oct 1 2018, In : Journal of Crystal Growth. 499, p. 8-12 5 p.

Research output: Contribution to journalArticle

Silicon
Carbon Monoxide
Crystallization
Crystal growth
crystal growth
1 Citation (Scopus)

Numerical and experimental investigation of three-dimensionality in the dam-break flow against a vertical wall

Kamra, M. M., Mohd, N., Liu, C., Makoto, S. & Hu, C., Aug 1 2018, In : Journal of Hydrodynamics. 30, 4, p. 682-693 12 p.

Research output: Contribution to journalArticle

Dam Break
dams
Numerical Investigation
Experimental Investigation
Dams
6 Citations (Scopus)
Large Eddy Simulation
Large eddy simulation
Numerical Investigation
Turbulence
Wind Turbine

Reaction Pathway of Surface-Catalyzed Ammonia Decomposition and Nitrogen Incorporation in Epitaxial Growth of Gallium Nitride

Bui, K. M., Iwata, J. I., Kangawa, Y., Shiraishi, K., Shigeta, Y. & Oshiyama, A., Nov 1 2018, In : Journal of Physical Chemistry C. 122, 43, p. 24665-24671 7 p.

Research output: Contribution to journalArticle

Gallium nitride
gallium nitrides
Ammonia
Epitaxial growth
ammonia
3 Citations (Scopus)

Relationship between carbon concentration and carrier lifetime in CZ-Si crystals

Miyamura, Y., Harada, H., Nakano, S., Nishizawa, S. & Kakimoto, K., Mar 15 2018, In : Journal of Crystal Growth. 486, p. 56-59 4 p.

Research output: Contribution to journalArticle

Carrier lifetime
carrier lifetime
Silicon
Carbon
life (durability)
2 Citations (Scopus)

Relationship between dislocation density and oxygen concentration in silicon crystals during directional solidification

Ide, T., Harada, H., Miyamura, Y., Imai, M., Nakano, S. & Kakimoto, K., Jun 7 2018, In : Crystals. 8, 6, 244.

Research output: Contribution to journalArticle

Silicon
Dislocations (crystals)
Solidification
Oxygen
Crystals

Simulation of violent free surface flow by AMR method

Hu, C. & Liu, C., Jun 1 2018, In : Journal of Hydrodynamics. 30, 3, p. 384-389 6 p.

Research output: Contribution to journalArticle

Adaptive Mesh Refinement
Free Surface Flow
charge flow devices
Hyperbola
Numerical Simulation
8 Citations (Scopus)

Thermodynamic analysis of trimethylgallium decomposition during GaN metal organic vapor phase epitaxy

Sekiguchi, K., Shirakawa, H., Chokawa, K., Araidai, M., Kangawa, Y., Kakimoto, K. & Shiraishi, K., Apr 1 2018, In : Japanese Journal of Applied Physics. 57, 4, 04FJ03.

Research output: Contribution to journalArticle

Vapor phase epitaxy
vapor phase epitaxy
Thermodynamics
Decomposition
decomposition
2017

Ab initio and experimental studies of polarization and polarization related fields in nitrides and nitride structures

Strak, P., Kempisty, P., Sakowski, K., Kaminska, A., Jankowski, D., Korona, K. P., Sobczak, K., Borysiuk, J., Beeler, M., Grzanka, E., Monroy, E. & Krukowski, S., Jan 1 2017, In : AIP Advances. 7, 1, 015027.

Research output: Contribution to journalArticle

Open Access
nitrides
polarization
slabs
electric fields
optical transition

Ab initio determination of electron affinity of polar nitride surfaces, clean and under Cs coverage

Strak, P., Kempisty, P., Sakowski, K. & Krukowski, S., Mar 1 2017, In : Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. 35, 2, 021406.

Research output: Contribution to journalArticle

Electron affinity
electron affinity
Nitrides
nitrides
Fermi level