検索結果 40 件

藤嶋 亮太, 本木 慎吾, 河原 源太 流体工学部門講演会講演論文集 2021 (0), OS02-13-, 2021

...It is found that the simple streamwise grooves can enhance momentum and heat transfer in comparison to a smooth channel, leading to dissimilar heat transfer enhancement....

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Udo Hertrich-Jeromin, Wayne Rossman, Gudrun Szewieczek Mathematische Zeitschrift 294 (1-2), 747-767, 2019-09-17

...<jats:title>Abstract</jats:title> <jats:p>We present a definition of discrete channel surfaces in Lie sphere geometry, which reflects several properties for smooth channel surfaces....

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安田 陽一 土木学会論文集Ａ２（応用力学） 74 (2), I_449-I_455, 2018

ここでは，矩形断面水路においてBrink Depthから限界水深が生じるまでの水面形および距離について実験的な検討を行った．無次元化の仕方によっては水平から限界勾配まで相似な水面形が得られることが分かった．また，Brink Depthから限界水深が生じるまでの距離と限界水深の割合<i>L/h_c</i>は水路勾配iが大きくなるにつれて大きくなり，同一の勾配においては，滑面水路…

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SHANSHAN YANG, HUAHUA FU, BOMING YU Fractals 25 (01), 1750008-, 2017-02

...channels....

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Matilde Welber, Jérôme Le Coz, Jonathan B. Laronne, Guido Zolezzi, Daniel Zamler, Guillaume Dramais, Alexandre Hauet, Martino Salvaro Water Resources Research 52 (2), 1108-1126, 2016-02

...Our findings confirm that <jats:italic>α</jats:italic> = 0.85 is a valid default value, with a preferred site‐specific calibration to avoid underestimation of discharge in very smooth channels (relative...

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山元 雄生, 高橋 正行, 大津 岩夫 土木学会論文集Ｂ１（水工学） 72 (4), I_589-I_594, 2016

...The energy head along the channel is obtained, indicating that the energy dissipation for the stepped channel becomes larger than that for the smooth channel....

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Takahiro Tsukahara, Masaaki Tanabe, Yasuo Kawaguchi Advances in Mechanical Engineering 6 823138-, 2014-01-01

...The constitutive equation follows the Giesekus model, valid for polymer or surfactant solutions, which are generally capable of reducing the turbulent frictional drag in a smooth channel....

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加藤 洋平, 原村 嘉彦 スターリングサイクルシンポジウム講演論文集 2014.17 (0), 23-26, 2014

...The conclusion is that smooth channel is better structure of regenerator than metal gauze....

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Yu Rao, Xiang Zhang, Shusheng Zang Volume 3A: Heat Transfer 2013-06-03

...friction factor is about 6.4–11.1 times that of a smooth channel....

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Hiroyuki Ohta, Koji Matsubara, Shunsuke Kazama, Takahiro Miura Jets, wakes and separated flows : proceedings of International Conference on Jets, Wakes and Separated Flows, ICJWSF 2013.4 (0), _1116-1_-_1116-6_, 2013

...The heat transfer performance was evaluated by the heat transfer enhancement ratio to the heat transfer coefficient of the smooth channel consuming the same pumping power....

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加藤 健司, 脇本 辰郎, 西村 貴志 日本機械学会論文集Ｂ編 78 (794), 1769-1783, 2012

...., the ratio between heat transfer enhancement and drag increase from a smooth channel), is discussed in a channel with a delta wing-type vortex generator (VG) installed on the wall in laminar and turbulent...

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加藤 健司, 西村 貴志, 脇本 辰郎 動力・エネルギー技術の最前線講演論文集 : シンポジウム 2011.16 (0), 113-116, 2011

...In the laminar flow, since there is no background turbulence in the smooth channel, the fluctuation generated by VG directly enhances the heat transfer, which is greater at high Pr where the thermal diffusion...

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堀川 俊之, 鳴海 敬倫, 長谷川 富市 年次大会講演論文集 2010.2 (0), 67-68, 2010

...As the first stage of this study, we have examined two types of T-shaped channels of millimeter order, i.e. a smooth channel and a channel with blocks at the mixing region....

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西村 貴志, 加藤 健司, 脇本 辰郎 年次大会講演論文集 2010.2 (0), 19-20, 2010

...., the ratio between heat transfer enhancement and drag increase from a smooth channel, is discussed for the turbulent and laminar flows in a channel with a wing-type vortex generator (VG) installed on...

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KATOH Kenji, NISHIMURA Takashi, WAKIMOTO Tatsuro, TANIGAWA Toshinobu Proceedings of the International Conference on Power Engineering : ICOPE 2009.3 (0), _3-7_-_3-12_, 2009

...In the turbulent flow, the temperature fluctuation in the smooth channel is suppressed by the strong thermal diffusion effect at low Pr....

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NUTHONG Watcharin, EIAMSA-ARD Smith, NANAN Kwanchai, EIAMSA-ARD Petpices, THIANPONG C. Proceedings of the International Conference on Power Engineering : ICOPE 2009.3 (0), _3-13_-_3-17_, 2009

...Experiments using smooth channel are also performed for comparison....

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YU Jung-Lang, CHEN Chia-Hao IEICE Transactions on Communications E91-B (4), 1076-1083, 2008

...Due to the block Toeplitz structure of channel matrix, the block matrix scheme is applied to the linear smoothing channel estimation, which equivalently increases the number of sample vectors and thus...

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T. C. Lilly, J. A. Duncan, S. L. Nothnagel, S. F. Gimelshein, N. E. Gimelshein, A. D. Ketsdever, I. J. Wysong Physics of Fluids 19 (10), 106101-, 2007-10-01

...For the triangular roughness, mass flow reductions ranged from 6% at the higher stagnation pressures tested to 25% at the lower stagnation pressures tested when compared to the smooth channel....

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Noah J. Finnegan, Leonard S. Sklar, Theodore K. Fuller Journal of Geophysical Research: Earth Surface 112 (F3), F03S11-, 2007-06-28

...channel with a varying bed load supply rate....

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塩田 淳, 津守 不二夫, 小寺 秀俊, KANNO Isaku 年次大会講演論文集 2007.7 (0), 321-322, 2007

...The measurements reveal that reduction in textured channel can be achieved relative to the classical smooth channel Stokes flow....

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J. Davies, D. Maynes, B. W. Webb, B. Woolford Physics of Fluids 18 (8), 087110-, 2006-08-01

...predictions and accompanying measurements reveal that significant reductions in the frictional pressure drop (enhancement in effective fluid slip at the channel walls) can be achieved relative to the classical smooth-channel...

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加藤 健司 関西支部講演会講演論文集 2005.80 (0), _4-17_-_4-22_, 2005

...Referring to the recent papers, the similarity is discussed for the smooth channel and for the channel on which a turbulence generator is installed to enhance the heat transfer....

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H. K. Moon, T. O’Connell, R. Sharma Journal of Turbomachinery 125 (2), 274-280, 2003-04-01

...The heat transfer enhancement using a convex patterned surface was thermally more effective at a relative low Reynolds numbers (less than 20,000 for δ/d=0) than that of a smooth channel.</jats:p>...

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加藤 健司, 東 恒雄 日本機械学会論文集Ｂ編 69 (685), 2091-2098, 2003

...., the ratio of the heat transfer enhancement to the drag increase from the smooth channel) is larger when VG is installed in the laminar flow than in the turbulent flow from the following reasons....

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三浦 永祐, 小山 和義, 谷本 充司, 加藤 進, 齋藤 直昭 レーザー研究 31 (11), 752-757, 2003

...The generation of the MeV electron beam was always accompanied by the appearance of the transition to the disturbed structure from the narrow and smooth channel in the plasma....

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杉山,均, 斉藤,充克 日本機械学会関東支部ブロック合同講演会講演論文集 2002 55-56, 2002-08-29

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Abraham D. Stroock, Stephan K. W. Dertinger, Armand Ajdari, Igor Mezić, Howard A. Stone, George M. Whitesides Science 295 (5555), 647-651, 2002-01-25

...channel....

DOI Web Site 被引用文献81件

柏井 条介, 井上 清敬 ダム工学 12 (4), 256-267, 2002

...Authors show the relationship between sediment transportation rate and shear stress on the walls, hydraulic conditions of maximum transportation rate without accumulation in smooth channels....

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安田 陽一, 高橋 正行, 小林 純, 大津 岩夫 水工学論文集 46 601-605, 2002

...Because, an aerated flow on smooth channel chutes has not been formed in experimental models even if the boundary layer of supercritical flow is fully developed....

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H. K. Moon, T. O’Connell, B. Glezer Journal of Engineering for Gas Turbines and Power 122 (2), 307-313, 2000-01-03

...The friction factors (f) in the aerodynamically fully developed region were consistently measured to be around 0.0412 (only 1.6 to 2.0 times that of a smooth channel)....

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廣田 真史, 藤田 秀臣, 吉田 尚史, 大原 敏夫, 赤地 靖彦 日本機械学会論文集Ｂ編 64 (623), 2273-2279, 1998

...The pressure drops of the micro-grooved channels are only 1.2-1.5 times those of the smooth channel, and they can be well correlated by modified Chisholm's equation irrespective of the channel attitudes...

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R. M. Lynden-Bell, Jayendran C. Rasaiah The Journal of Chemical Physics 105 (20), 9266-9280, 1996-11-22

...As in bulk solutions, the mobilities of the ions in smooth channels increase to a maximum with ion size and decrease with increasing magnitude of the charge on the ion, while uncharged species diffuse...

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大原 敏夫, 山本 敏博, 藤田 秀臣 日本機械学会論文集Ｂ編 57 (533), 268-275, 1991

...The highest heat transfer coefficient, which is obtained by the channel with P=7mm and e=1mm, is about three times higher than the smooth channel....

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大原 敏夫, 山本 敏博, 藤田 秀臣 日本機械学会論文集Ｂ編 56 (526), 1721-1726, 1990

...Comparison of these data indicates that in the cross-ribbed channel the heat transfer coefficient increases by as much as a factor of about 3 above the smooth channel under the same conditions, and the...

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J. C. Han, P. R. Chandra, S. C. Lau Journal of Heat Transfer 110 (1), 91-98, 1988-02-01

...<jats:p>The detailed mass transfer distributions around the sharp 180 deg turns in a two-pass, square, smooth channel and in an identical channel with two rib-roughened opposite walls were determined via...

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D. E. Metzger, M. K. Sahm Journal of Heat Transfer 108 (3), 500-506, 1986-08-01

...<jats:p>Measured Nusselt numbers are presented for forced convection within and around sharp 180-deg turns in smooth channels of rectangular cross section....

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R. E. Acosta, R. H. Muller, C. W. Tobias AIChE Journal 31 (3), 473-482, 1985-03

...Existing correlations that apply to smooth channels of much larger hydraulic diameter were found to be valid for the narrow channels as well....

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出口 利祐, 久保 七郎 農業土木研究 32 (7), 376-381, 1965

...channel....

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IWAGAKI, Yūichi Memoirs of the Faculty of Engineering, Kyoto University 15 (1), 27-40, 1953-03-31

It is generally considered that differing from the pipe flow, the flow in open channels has a free surface and waves appearing on water surface relate to some extent with .the laws of resistance on …

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岩垣 雄一 土木学会論文集 1953 (16), 22-28, 1953

It is generally considered that, differing from the pipe flow, the flow in open channels has a free surface and waves appearing on water surface relate to some extent with the laws of resistance to …

DOI Web Site