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| 02331cam 2200433zi 4500 |
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| 001 | 9.870420 |
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| 003 | CaOODSP |
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| 005 | 20221107163118 |
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| 006 | m o d f |
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| 007 | cr ||||||||||| |
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| 008 | 190322e198707##oncad #ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 041 | |aeng|bfre |
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| 086 | 1 |aEn13-5/87-139E-PDF |
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| 100 | 1 |aMarsalek, J., |eauthor. |
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| 245 | 10|aHead losses at manholes with a 90° bend / |cby J. Marsalek and B.J. Greck. |
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| 264 | 1|aBurlington, Ontario, Canada : |bNational Water Research Institute, Rivers Research Branch, Canada Centre for Inland Waters ; |aBrampton, Ontario, Canada : |bPaul Theil Associates Limited, |cJuly 1987. |
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| 300 | |a1 online resource (26 pages, 8 unnumbered pages) : |billustrations, graphs. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aNWRI contribution ; |v87-139 |
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| 500 | |a"RRB-87-32." |
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| 500 | |a"This manuscript has been prepared for the Canadian Journal of Civil Engineering." |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 3 |a"Head and pressure changes were studied at manholes with a 90° bend. For pressurized flow, such changes depended only on junction geometry. Among junction parameters, the benching was found particularly important. Full benchings reaching to the pipe crown produced the lowest head losses, particularly when combined with an enlarged pipe diameter at the junction. Head changes in open-channel flow were significantly smaller than those in pressurized flow"--Abstract, page 2. |
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| 546 | |aIncludes a management perspective and abstract in English and French. |
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| 692 | 07|2gccst|aWater supply |
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| 693 | 4|aSewer design |
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| 693 | 4|aManholes |
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| 700 | 1 |aGreck, B. J., |eauthor. |
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| 710 | 1 |aCanada. |bEnvironment Canada. |
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| 710 | 2 |aNational Water Research Institute (Canada). |bRivers Research Branch. |
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| 710 | 2 |aCanada Centre for Inland Waters. |
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| 710 | 2 |aPaul Theil Associates. |
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| 830 | #0|aNWRI contribution ;|v87-139.|w(CaOODSP)9.844121 |
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| 856 | 40|qPDF|s1.77 MB|uhttps://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-87-139-eng.pdf |
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