Nobuyoshi Komatsu

Profile Information

Affiliation: Institute of Science and Engineering, Faculty of Mechanical Engineering, Institute of Science and Engineering, Faculty of Mechanical Engineering, Kanazawa University

Degree: Doctor of engineering(The University of Tokyo)

J-GLOBAL ID: 200901024393660575
researchmap Member ID: 5000105568

External link: http://www.ms.t.kanazawa-u.ac.jp/~fluid/

Research Interests

Research Areas

Natural sciences / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics /
Natural sciences / Mathematical physics and basic theory /
Aerospace, marine, and maritime Engineering / Aerospace engineering /
Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering /

Research History

2015 - Present

金沢大学理工研究域准教授
2007 - 2014

金沢大学大学院自然科学研究科助教
2006 - 2007

金沢大学大学院自然科学研究科助手
2005 - 2005

（独）建築研究所客員研究員（科学技術振興機構重点研究支援協力員）
2004 - 2005

（独）宇宙航空研究開発機構宇宙科学研究本部 (ISAS/JAXA) 共同研究員
1996 - 2001

三菱重工業（株）名古屋航空宇宙システム製作所研究部空力研究課

Education

- 2004

The University of Tokyo
- 1996

The University of Tokyo
- 1994

Department of Aeronautics and Astroronautics, The Faculty of Engineering, The University of Tokyo

Awards

Major Papers

Cosmological model based on both a holographiclike connection and Padmanabhan’s holographic equipartition law

Nobuyoshi Komatsu

PHYSICAL REVIEW D, 109(2) 023505(1)-023505(14), Jan 3, 2024 Peer-reviewedLead authorCorresponding author
Evolution of thermodynamic quantities on cosmological horizon in Λ(t) model

Nobuyoshi Komatsu

PHYSICAL REVIEW D, 108(8) 1-14, Oct 13, 2023 Peer-reviewedLead authorCorresponding author
Horizon thermodynamics and cosmological equations: A holographic-like connection between thermostatistical quantities on a cosmological horizon and in the bulk

Nobuyoshi Komatsu

European Physical Journal C, 83(690) 1-10, Aug 3, 2023 Peer-reviewedLead authorCorresponding author
Energy stored on a cosmological horizon and its thermodynamic fluctuations in holographic equipartition law

Nobuyoshi Komatsu

Physical Review D, 105(4), Feb 23, 2022 Peer-reviewedLead authorCorresponding author
Evolution of dissipative and nondissipative universes in holographic cosmological models with a power-law term

Nobuyoshi Komatsu

Physical Review D, 103(2), Jan 25, 2021 Peer-reviewedLead authorCorresponding author
Entropy production due to adiabatic particle creation in a holographic dissipative cosmology

Nobuyoshi Komatsu

Physical Review D, 102(6), Sep 11, 2020 Peer-reviewedLead authorCorresponding author
Horizon thermodynamics in holographic cosmological models with a power-law term

Nobuyoshi Komatsu

Physical Review D, 100(12), Dec 30, 2019 Peer-reviewedLead authorCorresponding author
Generalized thermodynamic constraints on holographic-principle-based cosmological scenarios

Nobuyoshi Komatsu

Physical Review D, 99(4), Feb 15, 2019 Peer-reviewedLead authorCorresponding author
Thermodynamic constraints on a varying cosmological-constant-like term from the holographic equipartition law with a power-law corrected entropy

Nobuyoshi Komatsu

Physical Review D, 96(10), Nov 9, 2017 Peer-reviewedLead authorCorresponding author
Cosmological model from the holographic equipartition law with a modified Rényi entropy

Nobuyoshi Komatsu

European Physical Journal C, 77(4), Apr 11, 2017 Peer-reviewedLead authorCorresponding author
General form of entropy on the horizon of the universe in entropic cosmology

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D, 93(4), Feb 17, 2016 Peer-reviewedLead authorCorresponding author
Cosmic microwave background radiation temperature in a dissipative universe

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(4), Aug 6, 2015 Peer-reviewedLead authorCorresponding author
Entropic cosmology in a dissipative universe

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(12), Dec 12, 2014 Peer-reviewedLead authorCorresponding author
Evolution of the universe in entropic cosmologies via different formulations

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(12), Jun 3, 2014 Peer-reviewedLead authorCorresponding author
Entropic Cosmology from a Thermodynamics Viewpoint

Nobuyoshi Komatsu

JPS Conf. Proc. [Proc. of APPC12], 1(013112) 1-4, Mar 26, 2014 Peer-reviewedLead authorCorresponding author
Entropic cosmology for a generalized black-hole entropy

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D - Particles, Fields, Gravitation and Cosmology, 88(8), Oct 28, 2013 Peer-reviewedLead authorCorresponding author
Non-adiabatic-like accelerated expansion of the late universe in entropic cosmology

Nobuyoshi Komatsu, Shigeo Kimura

Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(4), Feb 26, 2013 Peer-reviewedLead authorCorresponding author
Transition of velocity distributions in collapsing self-gravitating N-body systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 85(2), Feb 22, 2012 Peer-reviewedLead authorCorresponding author
Time-reversibility, instability and thermodynamics in n-body systems interacting with long-range potentials

Nobuyoshi Komatsu

Procedia IUTAM, 5 151-159, 2012 Peer-reviewedLead authorCorresponding author
Thermodynamic properties of an evaporation process in self-gravitating N -body systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 82(2), Aug 17, 2010 Peer-reviewedLead authorCorresponding author
Nonequilibrium process of self-gravitating N-body systems and quasi-equilibrium structure using normalized q-expectation values for Tsallis' generalized entropy

Nobuyoshi Komatsu, Shigeo Kimura, Takahiro Kiwata

Journal of Physics: Conference Series, 201(012009) 1-10, 2010 Peer-reviewedLead authorCorresponding author
Numerical irreversibility in self-gravitating small N-body systems, II: Influence of instability affected by softening parameters

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Physica A: Statistical Mechanics and its Applications, 388(5) 639-650, Mar 1, 2009 Peer-reviewedLead authorCorresponding author
Numerical irreversibility in self-gravitating small N-body systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Physica A: Statistical Mechanics and its Applications, 387(10) 2267-2278, Apr, 2008 Peer-reviewedLead authorCorresponding author
Expansion shock waves in the implosion process from a time-reversible molecular-dynamics simulation of a dual explosion process

Nobuyoshi Komatsu, Takashi Abe

Physics of Fluids, 19(5), May, 2007 Peer-reviewedLead authorCorresponding author
Noise-driven numerical irreversibility in molecular dynamics technique

Nobuyoshi Komatsu, Takashi Abe

Computer Physics Communications, 171(3) 187-196, Oct 1, 2005 Peer-reviewedLead authorCorresponding author
Shape effect of hot droplets on fragmentation

Nobuyoshi Komatsu, Takashi Abe

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 72(2), Aug, 2005 Peer-reviewedLead authorCorresponding author
Numerical irreversibility in time-reversible molecular dynamics simulation

Nobuyoshi Komatsu, Takashi Abe

Physica D: Nonlinear Phenomena, 195(3-4) 391-397, Aug 15, 2004 Peer-reviewedLead authorCorresponding author
Application of the Pressure Sensitive Paint Technique in an Aircraft Design Process

SHIMBO Yuichi, KOMATSU Nobuyoshi, ASAI Keisuke

Journal of the Visualization Society of Japan, 21(83) 216-221, Oct 1, 2001 Peer-reviewed
Numerical Analysis of Three Dimensional Laminar Boundary Layer Flow Using Finite Element Method

KOMATSU Nobuyoshi, SATO Junzo

Aeronautical and space sciences Japan, 45(517) 93-101, Feb, 1997 Peer-reviewedLead author
Effect of Wing Planforms on the Intersecting Angles of Streamline and Isobar

KOMATSU Nobuyoshi, SATO Junzo

Aeronautical and space sciences Japan, 44(505) 120-125, Feb, 1996 Peer-reviewedLead author

Major Misc.

General radiative temperature law and radiation temperature in a dissipative universe

Nobuyoshi Komatsu

Yukawa International Seminar 2015 (YKIS2015): New Frontiers in Non-equilibrium Statistical Physics 2015, P18, Aug, 2015
Entropic-force cosmological models for a generalized black-hole entropy

Nobuyoshi Komatsu

Abstracts of YITP Workshop on Quantum Information Physics (YQIP2014), (P17), Aug, 2014
Modified Friedmann, acceleration and continuity equations for a nonadiabatic accelerated expanding universe in entropic cosmology

Nobuyoshi Komatsu, Shigeo Kimura

Nishinomiya Yukawa Symposium: New Waves in Gravity and Cosmology, Dec, 2012
Nonmonotonic velocity-relaxation in an evaporation-collapse process of self-gravitating small N-body systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Abstracts: International Workshop on Anomalous Statistics, Generalized Entropies, and Information Geometry (NEXT2012), 51-51, Mar, 2012
Practical Use and Results of e-Learning System in Technical English Education

(6) 39-49, Mar, 2012
Collapseを伴う自己重力N体系の速度緩和の非単調性

小松信義

素粒子論研究・電子版 Vol. 13 (2012) No. 1 【基礎物理学研究所研究会,「物理と情報の階層構造 ―情報を接点とした諸階層の制御と創発―」，Hierarchy in Physics through Information - It's Control and Emergence】, Jan, 2012
Relaxation of non-Gaussian velocity distributions in collapses of long-range attractive interacting systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Book of Abstracts of the 2nd international symposium on "Multi-scale Simulations of Biological and Soft Materials" (MSBSM 2011), 22-22, Sep, 2011
Thermodynamic properties of a nonequilibrium process in long-range attractive interacting systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Abstracts of International Symposium on Non-Equilibrium Soft Matter 2010, 79-79 79-79, Aug, 2010
Dynamical evolutions and thermodynamic properties of an evaporation process in N-body systems with long-range attractive potentials

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Program and Abstracts of the 2nd International Symposium on Structural Thermodynamics (ISST-2010), 51-51, Aug, 2010
ミクロな時間可逆分子シミュレーションを通して見たマクロ現象の不可逆性

小松信義, 安部隆士

九州大学応用力学研究所研究集会「乱流現象及び非平衡系の多様性と普遍性」, Nov 12, 2009
Negative specific heat in self-gravitating systems enclosed in a spherical container with adiabatic and non-adiabatic walls

Nobuyoshi Komatsu, Shigeo Kimura, Takahiro Kiwata

International symposium YKIS2009, The Yukawa International Seminars (YKIS), YKIS 2009 "Frontiers in Nonequilibrium Physics: Fundamental Theory, Glassy & Granular Materials, and Computational Physics, Jul, 2009
Numerical irreversibility and instability in self-gravitating small N-body systems

Nobuyoshi Komatsu, Takahiro Kiwata, Shigeo Kimura

Abstracts of the 5th International Conference on Nonlinear Science, Dynamics Days Asia Pacific 5 (DDAP5), 112-112, Sep, 2008
Irreversibility and Instability in Long-range Interacting Systems

Nobuyoshi Komatsu, Shigeo Kimura, Takahiro Kiwata

Abstracts of the International Symposium on Non-Equilibrium Soft Matter, 36-36, Jun, 2008
Propagation of Numerical Irreversibility in N-body Systems with Long-range Interactions

Nobuyoshi. Komatsu, Youichi Utanohara, Shigeo Kimura, Takahiro Kiwata

Proceedings of The Eighteenth International Symposium on Transport Phenomena, ISTP18, ISTP18(83) 2031-2036, Aug, 2007
時間可逆な分子動力学法によるマクロ現象の不可逆性の研究--BoltzmannのH定理から爆縮過程の膨張衝撃波まで (乱流と輸送現象--コーヒーカップから宇宙まで--RIMS研究集会報告集)

小松信義, 安部隆士

数理解析研究所講究録, 1567(1567) 102-110, Aug, 2007
Numerical irreversibility in self-gravitating N-body systems

Nobuyoshi. Komatsu, Youichi Utanohara, Takahiro Kiwata, Shigeo Kimura

(G4-11) 1-6(CD-ROM), Apr, 2007
Numerical Simulation of Urban Thermal Environment in the Waterfront Area of Tokyo

Yasunobu Ashie, Nobuyoshi Komatsu, Takaaki Kono, Keiko Takahashi

Annual Report of the Earth Simulator Center, FY(2005) 83-87, Jan, 2007
Why does not expansion shock wave exist in nature?

Nobuyoshi Komatsu, Takashi Abe

Proceedings of 25th International Symposium on Rarefied Gas Dynamics, 1-6, Jul, 2006
High Resolution Analysis of Urban Heat Island Phenomenon in Tokyo with Earth Simulator

Nobuyoshi Komatsu, Takaaki Kono, Yasunobu Ashie

Proceedings of The 4th Japanese-German Meeting on Urban Climatology, E-5,1-6, Nov, 2005
Noise-Driven Numerical Irreversibility in Time-Reversible Molecular Dynamics Simulation

Nobuyoshi Komatsu, Takashi Abe

Conference on Computational Physics, CCP2004, Books of abstracts, 28(D) 105-107, Aug, 2004
Flight Test of the ATREX Engine

SAWAI Shujirou, KOBAYASHI Hiroaki, SATO Tetsuya, HONGOH Motoyuki, KOMATSU Nobuyoshi, AZUMA Nobuyuki

46(46) 225-240, Mar, 2003
Concept Study of THE Flight Test For ATREX Engine Development

Shujiro Sawai, Tetsuya Sato, Nobuhiro Tanatugu, Takashi Abe, Nobuyoshi Komatsu, Junichiro Kawaguchi, Hiroshi Yamakawa, Kouji Hiraki, Kazuhisa Fujita, Hiroaki Kobayashi …

Proceedings of 23rd International Symposium on Space Technology and Science, ISTS 2002, (ISTS 2002-g-14) 1576-1581, May, 2002
Pressure Sensitive Paint Application at Large Wind Tunnels

Yuichi Shimbo, Keisuke Asai, Nobuyoshi Komatsu

Proceedings of 22nd Congress of the International Council of the Aeronautical Sciences, ICAS2000, ([Paper No. 00.3.3.3) 1-10, Aug, 2000
Pressure Sensitive Paint Application to a Business Jet Model in Transonic Testing

Yuich Shimbo, Keisuke Asai, Yoshimi Iijima, Hiroki Sugiura, Hiroshi Kanda, Nobuyoshi Komatsu, Shinya Kita, Mitsuo Ishiguro

7th Annual Pressure Sensitive Paint Workshop, Oct, 1999
Evaluation of Several Calibration Techniques for Pressure Sensitive Paint in Transonic Testing

Yuich Shimbo, Keisuke Asai, Hiroshi Kanda, Yoshimi Iijima, Nobuyoshi Komatsu, Shinya Kita, Mitsuo Ishiguro

20th AIAA Advanced Measurement and Ground Testing Technology Conference, AIAA Paper, 98(2502) 1-8, Jun, 1998

Books and Other Publications

Computer Physics Research Trends

(Editor:Silvan J. Bianco), Nobuyoshi KOMATSU, Takashi ABE (Role: Contributor, Chapter 4, pp.157-184)

Nova Science Publishers, Inc., 2007

Professional Memberships

Research Projects

Cosmological model from the holographic equipartition law with a nonadditive entropy

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2018 - Mar, 2021

KOMATSU Nobuyoshi
Development of low noise porous plate by interaction of 3-dimentinal vortices in non-circular jets.

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2016 - Mar, 2019

Kiwata Takahiro
地中熱流水熱利用型クローズドシステム技術開発

再生可能エネルギー熱利用技術開発（再委託）, 再委託, 独立行政法人新エネルギー・産業技術総合開発機構, Sep, 2014 - Mar, 2019
Control of microstructure and segregation in a solidifying eutectic alloy

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2013 - Mar, 2016

KIMURA Shigeo, MONZEN RYOICHI, KOMATSU NOBUYOSHI
Study on Control of a Jet Spread by Divergent or Convergent Ring and Plates

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 2010 - 2012

KIWATA Takahiro, KIMURA Shigeo, KOMATSU Nobuyoshi
Active control of cooling temperature for designing solutesegregation in the solidified layer

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 2010 - 2012

KIMURA Shigeo, KIWATA Takahiro, KOMATSU Nobuyoshi
Improvement of Performance and Noise Reduction of Giromill-type Vertical-Axis Wind Turbine with Variable-Pitch Straight Blades

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, 2006 - 2008

KIWATA Takahiro, KIMURA Shigeo, KOMATSU Nobuyoshi
長距離相互作用系（自己重力系）の緩和過程

2006
Relaxation process in self-gravitating systems

2006
クラスタなどの構造形成

2003
Structure formation on clusters

2003
不可逆性 (時間の矢）

2002
Irreversibility (Time's arrow)

2002
航空機・宇宙機の空気力学
Aerodynamics for aircraft and spacecraft

Profile Information

Research Interests

Research Areas

Research History

Education

Awards

Major Papers

Major Misc.

Books and Other Publications

Professional Memberships

Research Projects

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