研究成果 横山博史
受賞
自動車技術会関東支部研究発表会 ベスト・ペーパー賞 , 2007/3
本田拓, 塚本祐一, 横山博史, 飯田明由, 加藤千幸,
「ドアミラーから発生する異音周波数の予測」日本機械学会賞 （論文), 2012/4/20
「乱流境界層内のキャビティ音発生におけるフィードバック機構 (第１報，流体力学的振動）」日本機械学会 奨励賞 (研究) , 2011/4/21
「流れと音の直接計算を用いたキャビティ音の発生機構の研究」
報道/Press report
- 「リコーダー内部の複雑な空気の流れを解析し、新しい楽器デザインへ」.関連研究 : 楽器まわりの流れ・音 MONOist:PDF
マイナビニュース:PDF 日経テクノロジーオンライン:PDF - New Scientist, "See how sound radiates around a recorder", February, 2015, 関連研究 : 楽器まわりの流れ・音
- EurekAlert!, "Supercomputer simulations explore how an air-reed instrument generates air flow andsound",関連研究 : 楽器まわりの流れ・音
- iSGTW (international science grid this week), "Simulating sound with supercomputers could lead todevelopment of easy-to-play musical instruments",March 18, 2015, 関連研究 : 楽器まわりの流れ・音
- The Visualization Society of Japan, "今月のFlash", July, 2010, 関連研究 : 自動車室内騒音
解説総説/Review
- 横山博史, 音響・騒音, 日本機械学会誌, 「機械工学年鑑」特集号, 2014
- 横山博史, 「The 19th International Congress on Sound and Vibration」に参加して, 財団ニュース39号, 2013
- 横山博史, 飯田明由, 空力騒音の数値計算, センター計算機を利用した研究紹介, 6号, 2011
学術雑誌
Hiroshi Yokoyama, Akira Miki, Hirofumi Onitsuka, and Akiyoshi Iida, "Direct numerical simulation of fluid-acoustic interactions in a recorder with tone holes", J. Acoust. Soc. Am. 138, 858 (2015).PDF
(Copyright (2015) American Institute of Physics. This article may be downloaded for personaluseonly. Any other use requires prior permission of the author and the American Institute ofPhysics:This article may be found at AIP).横山 博史, 篠原 大志, 中島 崇宏, 宮澤 真史, 飯田 明由,"層流境界層中におかれた折れ部を上流に有する曲面端部から生じるフィードバック音の直接計算",日本機械学会論文集,81 (826) pp. 15-00148,2015 J-STAGE
小林正樹,横山博史, 飯田明由, "音孔を有するリコーダー周りの流体音に関する直接計算", ながれ,33(2),pp. 125-131, 2014
Hiroshi Yokoyama, Katsuya Kitamiya, and Akiyoshi Iida, "Flows around a cascade of flat plateswith acoustics resonance",Physicsof Fluids,25(10), 106104, 2013. PDF
(Copyright (2013) American Institute of Physics. This article may be downloaded for personal useonly. Any other use requires prior permission of the author and the American Institute of Physics:This article may be found at AIP).横山博史, 北宮克哉, 飯田明由, "一様流中におかれた平板列からの音響共鳴を伴う空力音の発生", 日本機械学会論文集B編, 79 (804), pp. 1419-1433, 2013. J-STAGE
横山博史, 飯田明由, "低マッハ数の角柱周りの流れにおける空力音源", 日本機械学会論文集B編,79(799), pp. 344-355, 2013. J-STAGE
寺尾啓太郎,横山博史, 大峠祐介, 飯田明由, "キャビティ音発生機構に基づいた新たな周波数予測式の提案", 日本機械学会論文集B編,77(779), pp. 1522-1532, 2011. J-STAGE
李惟敏,横山博史, 加藤千幸, "直接計算による角柱から生じる空力音のLighthill音源項に関する研究",生産研究63(1), pp. 51-54, 2011. J-STAGE
Hiroshi Yokoyamaand Chisachi Kato, Fluid-Acoustic Interactions in Acoustic Radiation inTurbulent Cavity Flows (Fluid-Dynamic Oscillations),Journal of Environment and Engineering,6(1),pp. 90-106 (2011). J-STAGE
横山博史, 加藤千幸, "乱流境界層内のキャビティ音発生におけるフィードバック機構（第2報,流体共鳴振動)", 日本機械学会論文集B編,76(765), pp. 804-813 (2010). CiNii
横山博史, 加藤千幸, "乱流境界層内のキャビティから発生する音の直接数値計算" 生産研究,62(1), pp.15-22 (2010). J-STAGE
Hiroshi Yokoyamaand Chisachi Kato, "Fluid-acoustic interactions in self-sustainedoscillations inturbulent cavity flows. I. Fluid-dynamic oscillations,"Physicsof Fluids21, 105103 (2009).PDF
(Copyright (2013) American Institute of Physics. This article may be downloaded for personal useonly. Any other use requires prior permission of the author and the American Institute of Physics:This article may be found at AIP).横山博史, 加藤千幸, "乱流境界層内のキャビティ音発生におけるフィードバック機構（第1報,流体力学的振動),"日本機械学会論文集B編,75(760), pp. 2369-2378 (2009).【機械学会論文賞】 CiNii
横山博史, 加藤千幸, "乱流境界層中のキャビティから発生する空力騒音の直接計算", 生産研究,61(1), pp.26-29 (2009). J-STAGE
HiroshiYokoyama,Yuichi Tsukamoto, Chisachi Kato and Akiyoshi Iida, "Self-Sustained OscillationsWith Acoustic Feedback in Flow Over a Backward-Facing Step Witha Small Upstream Step,"Physics of Fluids19, 106104, 2007.PDF
(Copyright (2013) American Institute of Physics. Thisarticle may be downloaded for personal use only. Any other use requires prior permission of theauthor and the American Institute of Physics:This article may be found at AIP).飯田明由, 小久保あゆみ, 塚本裕一, 本田拓,横山博史, 貴島敬，加藤千幸, "ドアミラーから放射される空力・音響フィードバック音の発生条件,"日本機械学会論文集B編,73(732), pp. 1637-1646 (2007). J-STAGE
- 横山 博史,塚本 裕一,加藤 千幸,飯田 明由,"上流に微小な段差を有するバックステップから発生するフィードバック音の直接計算", 生産研究,59(1), pp.67-72 (2007). J-STAGE
国際会議
Hiroshi Yokoyama, Akiyoshi Iida, Taishi Shinohara, Takahiro Nakajima and Masashi Miyazawa, ""Aerodynamic Sound from a Curvilinear Body with a Kink Shape", ASME-JSME-KSME Joint FluidsEngineering Conference 2015, (July, 2015)
Hiroshi Yokoyama, Ryo Adachi, Taiki Minato, Hiroshi Odawara, Hideo Morishima and Akiyoshi Iida,"Control of Cavity Tone by Spanwise Aligned Jets in Upstream Boundary Layer", European DragReduction and Flow Control Meeting 2015, (March, 2015)PDF
Hiroshi Yokoyama, Masaki Kobayashi, Hirofumi Onitsuka, Akira Miki, Akiyoshi iida, "Direct numerical simulation of flow and acoustic fields around an air-reed instrument with tone holes",inter-noise 2014, Melbourne, Australia, (Novenber 17,2014).PDF
Hiroshi Yokoyama, Takahiro Nakajima, Taishi Shinohara, Masashi Miyazawa, and Akiyoshi Iida, "Aerodynamic noise produced in flow around an auto-mobile bonnet", inter-noise 2014, Melbourne,Australia, (Novenber 17,2014).PDF
Hiroshi Yokoyama, Katsuya Kitamiya, Hiroki Yamamoto, and Akiyoshi Iida, "Effects of distancebetween plates on flows around a cascade of flat plates with acoustic resonance", AIAA-2014-3197, Atlanta, 20th AIAA/CEAS Aeroacoustics Conference, 2014.PDF
Hiroshi Yokoyama, Taishi Shinohara, Takahiro Nakajima, MasashiMiyazawa, Akiyoshi Iida, "DIRECTSIMULATIONS OF ACOUSTIC RADIATION AROUND ATRAILING EDGE WITH AN UPSTREAM KINKSHAPE", 11th World Congress onComputational Mechanics (WCCM XI),Barcelona, Spain,(July,2014).PDF
Iida Akiyoshi,Hiroshi Yokoyama, Makoto Kusumoto, "Aerodynamicnoise control with plasmaactuators", The 24th International Symposium ontransport phenomena, Yamaguchi, Japan,(November, 2013).
HiroshiYokoyama, Makoto Kusumoto, Akiyoshi Iida, "Control of Noisefrom a Cascade of FlatPlates by using DBD Plasma Actuators", Inter-Noise 2013,Paper 1093, Innsbruck, Austria,(September, 2013).PDF
HiroshiYokoyama, Katsuya Kitamiya, Akiyoshi Iida, "Measurement of velocity field in flows arounda cascade of flat plates with acousticresonance", Inter-Noise 2013, Paper 1092, Innsbruck, Austria(September, 2013).PDF
HiroshiYokoyama, Hiroshi Odawara, Akiyoshi Iida, "Direct Simulationof Effects of Free-streamTurbulence on Cavity Tone", Inter-Noise 2013, Paper1107, Innsbruck, Austria (September, 2013).PDF
HiroshiYokoyama, Taishi Shinohara, Akiyoshi Iida, "AcousticRadiation in Flows around a TrailingEdge with an Upstream Kink Shape", Inter-Noise 2013, Paper 1100, Innsbruck, Austria (September,2013).PDF
Hiroshi Yokoyama, Katsuya Kitamiya and Akiyoshi Iida, "ACOUSTICRADIATION WITHRESONANCE IN FLOWS AROUND A CASCADE OF FLAT PLATES", The 20thInternationalCongress on Sound and Vibration, (July, 2013).
Hiroshi Yokoyamaand Akiyoshi Iida, "Acoustic Radiation from Flows around a Cascade of FlatPlates", Korea-Japan CFD workshop 2012, Busan, Korea, (November, 2012).
Akiyoshi Iida andHiroshi Yokoyama, "Effects of turbulenceon aerodynamic force of insect flight",The Fifth International Symposium on Aero Aqua Bio-Mechanisms, Taipei, Taiwan, (Augsut, 2012).
Hiroshi Yokoyamaand Akiyoshi Iida, "ACOUSTIC RADIATION IN A UNIFORM FLOW AROUND ATWO-DIMENSIONAL CYLINDER AT LOW REYNOLDS NUMBER", The 19th International Congresson Sound and Vibration, Vilnius, Lithuania, (July, 2012).
Hiroshi Yokoyama,Keitaro Terao, Tatsutya Suzuki and Akiyoshi Iida, "A formula forprediction offrequency of tonal sound in cavity flows with acousticresonance", ASME-JSME-KSME Joint FluidsEngineering Conference 2011 (招待講演), Hamamatsu, Japan, (July, 2011).
Hiroshi Yokoyama, Kenji Hagiya andAkiyoshi Iida, "Comparison of direct and hybrid simulations ofacoustic radiation by arectangular cylinder in a uniform flow", The 11th Asian Symposium onVisualization, Niigata, Japan, (June, 2011).
Hiroshi Yokoyama, Direct Numerical Simulation of Acoustic Radiation in Cavity flows, 2011 JSAEAnnual Congress (spring), Yokohama, Japan, (May, 2011).
Hiroshi Yokoyamaand Chisachi Kato, Fluid-acoustics interaction in self-sustained oscillationsover a cavityin a turbulent boundary layer, FEDSM2008 ASME Fluids Engineering Division SummerConference, Florida, USA, (August, 2008).
Hiroshi Yokoyama, Yuichi Tsukamoto,Chisachi Kato and Akiyoshi Iida, Self-sustained oscillationswith tonal sound around a backward-facingstep with a small upstream step, FEDSM2007 5th JointASME/JSME Fluids Engineering Conference, California, USA, (August, 2007).
Hiroshi Yokoyama, Chisachi Kato, YuichiTsukamoto, Taku Honda, Akiyoshi Iida and KazuoMatsuura, Numerical Investigation of Aeroacoustic feedback around a small bump neara backward-facing step, 9th Western Pacific Acoustics Conference, Seoul, Korea, (June, 2006).
博士論文
乱流境界層内のキャビティ音発生におけるフィードバック機構 (PDF, 12.3Mbytes)
科研費 
2014-1016年度 若手B 代表者 横山博史
物体運動と連成させた振動平板まわりの空力音の直接計算2013-2015年度 基盤B分担 (代表者 亀田正治) 分担者 横山博史
塗装型高速応答感圧塗料による移動物体周り非定常圧力場計測法の確立2012-2013年度 若手B 代表者 横山博史
高精度な空力騒音の数値予測に向けた真の音源の同定
外部資金
横山博史, 立松財団 海外調査研究助成, 2013
横山博史, スズキ財団 研究助成, 2012