Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Mitsuo Koukawa"'
Publikováno v:
Journal of the Visualization Society of Japan. 15:221-224
The purpose of the present study is to measure and investigate unsteady flows inside and outside a hollow circular cylinder with sudden rotating and stopping in a uniform flow and finally in order to obtain some fundamental data about the virtual mas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fce0bdbed89bba382c08d58666d905c
https://doi.org/10.3154/jvs.15.supplement1_221
https://doi.org/10.3154/jvs.15.supplement1_221
Publikováno v:
JSME International Journal Series B. 36:294-299
Effects of velocity gradient of linear shear flows at a high Reynolds number (Re, s=4000-35000) on lift and drag applied to a spherical particle are investigated by measuring surface pressure distribution, using a pendant method, and by comparing com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33a63a86879dd4aa0a75f61af321551c
https://doi.org/10.1299/jsmeb.36.294
https://doi.org/10.1299/jsmeb.36.294
Publikováno v:
Journal of the Visualization Society of Japan. 12:83-86
Linear shear flows with constant velocity gradients are made through a duct by putting unequal-spacing parallel rods in it. The flow characteristics of the shear flows are measured and motion of shepherical particles is investigated in the duct.Effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd749b85cdf096629c5edef263db3514
https://doi.org/10.3154/jvs.12.1supplement_83
https://doi.org/10.3154/jvs.12.1supplement_83
Publikováno v:
Journal of the Visualization Society of Japan. 12:99-102
The authors already developed three-dimensional particle tracking velocimetry (3D-PTV) based on a binary correlation method for high speed particle identification. The technique of the 3D-PTV is applied to the measurement of the flows of water and ai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8654b064866cdebaaf5f8c9000e06e2d
https://doi.org/10.3154/jvs.12.1supplement_99
https://doi.org/10.3154/jvs.12.1supplement_99
Publikováno v:
Journal of the Visualization Society of Japan. 11:169-172
The purpose of the present study is to propose a new high efficiency particle identification method for 3D PTV, based on a binary cross correlation method and its necessary condition. The effects of sizes of imaginary particle, search subregion, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd313702608c6b3d999db11185509c0a
https://doi.org/10.3154/jvs.11.supplement1_169
https://doi.org/10.3154/jvs.11.supplement1_169
Publikováno v:
Journal of the Visualization Society of Japan. 10:196-202
A technique of digital processing of video pictures is explained which enables a measurement of two-dimensional velocity distribution in a very short time. The particularities of the method are followings : 1) high speed analysis which needs only a f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d855a01780ad4124a369db67c0be0268
https://doi.org/10.3154/jvs.10.196
https://doi.org/10.3154/jvs.10.196
Autor:
Fujio Yamamoto, Manabu Iguchi, Junichi Ohta, Mitsuo Koukawa, Yoshihide Sakai, Tomomasa Uemura
Publikováno v:
Flow Visualization VI ISBN: 9783642848261
A two-dimensional particle tracking velocimetry (2D-PTV) based on binary correlation method which has been proposed by the authors before is applied to measure fluctuating flows around two circular cylinders. The experiments are carried out in the th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a0603b4b0b7ca4ee7b9a00e838e0b1b
https://doi.org/10.1007/978-3-642-84824-7_145
https://doi.org/10.1007/978-3-642-84824-7_145
Publikováno v:
JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN. 9:281-284
In the previous report, velocity vectors and vorticity contours of an unsteady viscous diffusing free doublet flow field were analyzed using a digital image processing system based on the correlation method. In it a serious problem was pointed out on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daffa0b2cd8d61dc4b02195c351964d2
https://doi.org/10.3154/jvs1981.9.281
https://doi.org/10.3154/jvs1981.9.281
Publikováno v:
Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan). 37:P100-P114
The present paper studies the flow pattern in the yarn guide pipe with a uniform circular cross section provided with a long slot along the pipe axis. Some experiments and the numerical analysis of the flow are made for both the straight and the circ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1077369040de140e778ac34bce068fe6
https://doi.org/10.4188/transjtmsj.37.p100
https://doi.org/10.4188/transjtmsj.37.p100
Publikováno v:
JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN. 8:259-262
The object of the present study is to establish a new method for the automatic measurement of unsteady slow flow field with vortices, using a digital image processing system. The flow patterns of viscous diffusing free doublet are recorded on VTR. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f58e72db1abe9b967f4e35b7215ab72d
https://doi.org/10.3154/jvs1981.8.259
https://doi.org/10.3154/jvs1981.8.259