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Plunge pool scour: Early history and hydraulicians
(1998)Journal of Hydraulic EngineeringJournal Article -
Generalized culvert design diagram
(1998)Journal of Irrigation and Drainage EngineeringThe features of culvert flow in a basic arrangement are highlighted. Four fundamental flow types may be identified, namely critical flow, uniform flow, gated flow, and pressurized flow. A generalized design diagram is presented for the circular barrel that gives the possible transitions between various flow types. Further, the lengths of free surface flows with a central pressurized flow portion are determined as a function of the pipe ...Journal Article -
Hydraulics of embankment weirs
(1998)Journal of Hydraulic EngineeringEmbankment weirs, often found in engineering applications with a side slope 1V:2H, are considered in this paper. For free overflow, the discharge coefficient is determined in terms of relative crest length for long broad-crested, broad-crested, short-crested, and thin-crested weirs. A considerable increase of capacity is noted when compared to broad-crested weirs with vertical faces. For submerged overflow, four regimes are identified: ...Journal Article -
Drawdown curve and incipient aeration for chute flow
(1998)Canadian Journal of Civil EngineeringTurbulent rough flows in spillway chutes are considered in the first part. The drawdown curve is demonstrated to be identical with those of flows in the turbulent smooth regime. It is further shown that all drawdown curves can be expressed with a normalized streamwise coordinate that involves the bottom slope and the uniform and critical flow depths. An explicit solution is presented. The computational results are verified with model ...Journal Article -
Kontraktionskolk - eine Literaturstudie
(1998)Österreichische Wasser- und AbfallwirtschaftKontraktionskolke, wie sie etwa in Flussverbauungen auftreten, werden anhand einer Literaturübersicht untersucht. Daraus lassen sich einerseits die heute gültigen Konzepte bezüglich der lokalen Erosion von Fliessgewässern bestätigen, anderseits aber auch nachhaltige Lücken im Wissensstand aufzeigen. Insbesondere fehlen Angaben über den zeitlichen Kolkfortschritt sowie konstruktive Methoden zur Kolkreduktion.Journal Article -
Minimalgeschwindigkeit und Sedimenttransport in Kanalisationen
(1998)GWA: Gas, Wasser, AbwasserJournal Article -
Hubert Engels (1854-1945), der Begründer des wissenschaftlichen Wasserbaus
(1998)GWF. Wasser + AbwasserJournal Article -
Supercritical flow in chute contraction
(1998)Journal of Hydraulic EngineeringContractions with supercritical flow generate shockwaves requiring significantly larger wall heights than predicted by one-dimensional flow equations. Three distinct waves in a straight-walled contraction may be identified: wave 1 downstream from the contraction point, wave 2 in the chute axis, and wall wave 3 beyond the contraction end. The characteristics of these three waves were experimentally determined, based on the concept of the ...Journal Article -
Boussinesq (1842-1929) ein mathematischer Hydrauliker
(1998)GWF. Wasser + AbwasserJournal Article -