Zobrazeno 1 - 10
of 14
pro vyhledávání: '"John Demetriou"'
Autor:
D. Dimitriou, John Demetriou
Publikováno v:
Journal of Hydrodynamics. 22:664-668
In this study, based on experimental evidence, the mechanical energy losses (ΔH) along two hydraulic inclined (angle φ, 0° ≤ ϕ ≤ 8°) jumps (d1, dm), namely the jump over a thin wall (w) and the jump over an abrupt step (w), are examined, com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e13f6b588a61a67befba5a95f585d4
https://doi.org/10.1016/s1001-6058(10)60015-7
https://doi.org/10.1016/s1001-6058(10)60015-7
Autor:
Eugene Retsinis, John Demetriou
Publikováno v:
Science in China Series E: Technological Sciences. 52:3363-3367
In this experimental study a practical geometrical comparison between inclined (angle φ) free and repelled hydraulic jumps (the latter in non prismatic but abruptly expanding channels) is presented, analysed and discussed. For repelled hydraulic jum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d9c3804fa120fea529ad177d9167bb9
https://doi.org/10.1007/s11431-009-0362-3
https://doi.org/10.1007/s11431-009-0362-3
Autor:
John Demetriou, Eugene Retsinis
Publikováno v:
International Journal of Scientific Research. 2:169-171
In this experimental study a comparison is presented between theory (onedimensional flow equations) and geometry (free surface water profiles) concerning the free and over - sill inclined (angle φ, 0o≤φ≤14ο) hydrau- lic jumps. A number of expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caabc9c08b2bceb247b8472d2fa1f8da
https://doi.org/10.15373/22778179/june2013/54
https://doi.org/10.15373/22778179/june2013/54
Autor:
John Demetriou
Publikováno v:
Paripex - Indian Journal Of Research. 2:137-139
In this experimental study the Manning’s n roughness coefficient is investigated in uniform-turbulent-steady water flows, within sloped (Jo) rectangular open channels of composite roughness. The channel’s bed always remains smooth, but both walls
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6389bbaa624bbd5a32ef1bc9a207179
https://doi.org/10.15373/22501991/feb2013/46
https://doi.org/10.15373/22501991/feb2013/46
Publikováno v:
2011 International Conference on Multimedia Technology.
In this experimental study a number of measurements are presented, analyzed and discussed, concerning incompressible air jets (issuing from circular opening d=25 mm) into coaxial rough pipes (equipped with ring rectangular strips roughness elements o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e56d20720736e200d848d93039da8e0
https://doi.org/10.1109/icmt.2011.6002671
https://doi.org/10.1109/icmt.2011.6002671
Publikováno v:
Advances in the Research of Aquatic Environment ISBN: 9783642199011
When dealing with any hydrogeological issue, or the management of water environment, the water quality in agricultural constructions or even in hydrology, the first priority is to measure the water discharge. A suitable hydraulic structure, even in i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7931e43e0184c5910d99323f50867f4
https://doi.org/10.1007/978-3-642-19902-8_63
https://doi.org/10.1007/978-3-642-19902-8_63
Autor:
John Demetriou
This paper is a technical review concerning the sewer or culvert or small river outflows in the sea, mainly based on experiments by the author or on well established equations. The relative vertical positions of the exit of the sewer and the sea surf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f6be578ce076346965ae50df8639ab3
https://doi.org/10.1016/s0422-9894(03)80091-0
https://doi.org/10.1016/s0422-9894(03)80091-0
Autor:
George K. Noutsopoulos, John Demetriou
Publikováno v:
Water Science and Technology. 14:13-20
Experimental results, concerning surface dilutions of round turbulent jets with negative buoyancy, are presented and discussed. Fresh water jets, of density ρo, discharging from a vertical pipe, of internal diameter do, placed in the middle of the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6ffb478480663ff42a5754055750582
https://doi.org/10.2166/wst.1982.0083
https://doi.org/10.2166/wst.1982.0083
Publikováno v:
Journal of Hydraulic Engineering. 110:405-422
The results of some experiments are reported concerning the boundary shear stress and boundary shear force distributions in a smooth channel of rectangular cross section. An empirically derived equation is presented which gives the percentage of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757b38071e14676c99bf749d3d8028fa
https://doi.org/10.1061/(asce)0733-9429(1984)110:4(405)
https://doi.org/10.1061/(asce)0733-9429(1984)110:4(405)
Publikováno v:
Agricultural Water Management. 13:273-283
In this experimental study, measurements concerning uniform flow in open channels, with semicircular cross sections and smooth or rough boundaries, are presented, analysed and discussed. Based on local velocity and boundary shear stress measurements,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::116bbaba2d6965679f20041afd8c5982
https://doi.org/10.1016/0378-3774(88)90160-6
https://doi.org/10.1016/0378-3774(88)90160-6