document

Toelichting bij het fabrieksschema benzine uit kraakgassen

Kranenburg, J.F. (author), Bromberg, J.P. (author)

Document(en) uit de collectie Chemische Procestechnologie

report 1954

document

Het mechanische gedrag van uit zacht polyetheen vervaardigde buizen voor relatief lage radiale belastingen en korte belastingduur

Kranenburg, C. (author)

In september 1966 rjchtte het KIWA een verzoek tot het laboratorium voor Vloeistofmechanica om het gedrag van bepaalde verbindingsstukken voor kunststofbuizen bij optreden van waterslag daarin te onderzoeken. De kunststofbuizen kunnen zijn vervaardigd van P.V.C. en polyetheen. Het doel van het verrichte onderzoek was te komen tot een...

report 1966

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Domp- en stampbeweging van een schip in een nauw kanaal o.i.v. een translatiegolf

Kranenburg, C. (author)

report 1967

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Grafieken ter bepaling van de minimale drukken in relatief lange leidingen met bufferschacht of windketel na pompafslag

Kranenburg, C. (author)

Bij het transport van vloeistof van een reservoir naar een ander kan de configuratie van het transportsysteem bestaan uit reservoir-pomp-bufferschacht of windketel-leiding-reservoir. Indien de pomp uitvalt, treedt een terugslagklep tussen bufferschacht of windketel en pomp in werking, die voorkomt dat de vloeistof terugstroomt naar het...

report 1970

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Cavitation in horizontal pipelines due to water hammer

Kalkwijk, J.P.T. (author), Kranenburg, C. (author)

When designing a pipeline for the transport of a liquid one of the problems to be considered is the provision of a device to guard against low pressures. These low pressures can be caused, for example, by a sudden pump failure. The failure creates a negative pressure wave which travels in the downstream direction. Vapor pressure may be reached...

report 1971

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De invloed van cylinders in een aanstroomgoot van een Venturi-goot

Kranenburg, A.A. (author)

Dit laboratoriumonderzoek is één van de opdrachten in het laatste jaar van het ingenieursexamen aan de afdeling Weg- en Waterbouwkunde. Het omvat enerzijds een onderzoek naar de invloed van cylinders op een waterstroom in een goot. Anderzijds is een onderzoek gedaan naar de invloed van cylinders op de stuwhoogtemeting, cq. afvoer voor een...

report 1974

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The effect of gas release on column separator

Kranenburg, C. (author)

A mathematical model has been considered in which the influence of gas release on transient cavitating flow and column separation in pipel ines is taken into account. A rei iable numerical method has been developed for the computation of the wave propagation and cavitation phenomena following pump fai lure, valve closure, etc. Good agreement has...

report 1974

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Concentration effects on settling-tube analysis

Kranenburg, C. (author), Geldof, H.J. (author)

A mathematical model describing the unsteady stratified settling of sediment samples and nonuniform suspensions has been developed, taking into account the influence of the sediment concentration on the fall velocity. In principle, the resulting equations can be solved using the method of integration along characteristics. An estimating...

report 1974

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A model of turbulent diffusion

Kranenburg, C. (author)

Mathematical description of turbulent diffusion with constant mean velocity gradient.

report 1975

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Destratificatie van bekkens met behulp van bellenzuilen - de koppeling tussen near field en far field

Kranenburg, C. (author)

Dit rapport vormt een onderdeel van het toekomstig rapport nr. 77-1 en behandelt de theorie van het gelaagde far field voor het geval dat er geen verticale uitwisseling plaats vindt. De stroming in het far field wordt gemodelleerd als een drielagenstroming. Een beschouwing van de interne golfsnelheden maakt het mogelijk het benodigd aantal...

report 1977

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On the destratification of lakes and reservoirs using bubble columns

Kranenburg, C. (author)

The aim of this research project was (i) to obtain an understanding of the destratification process caused by the local injection of air at the bottom of a thermally stratified lake or reservoir, and (ii) to make possible quantitative predictions of the rate of destratification in a given situation. To this end a mathematical model was set up,...

report 1978

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Lake destratification induced by local air injection

Kranenburg, C. (author)

Mathematical and physical modelling makes possible quantitative predictions regarding the destratification process brought about by the local injection of air at the bottom of a thermally stratified lake or reservoir. The mathematical model developed distinguishes between a near field and a far field. Mixing of epilimnion water and hypolimnion...

report 1979

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A Simple Diffusion-Controled Model of Mixing Across a Stable Density Interface

Kranenburg, C. (author)

Mixing across a stable density interface caused by a shear stress externally acting on a two-layer fluid initially at rest is modelled using the turbulent-diffusion concept. The influence of a (relatively weak) longitudinal pressure gradient is also considered. The central point of view developed is that the mixed layer can be only weakly...

report 1979

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Analysis of a gradient transport model for turbulent density-stratified shear flow

Kranenburg, C. (author)

A number of qualitative properties of a first-order gradient transport model for turbulent density-stratified flow is analyzed. The dynamical stability of a statically stable shear flow is considered to re-examine certain arguments found in the literature which are in favour of the possibility of instability. Real flows seem to be stable in the...

report 1980

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Wind-driven entrainment in a stably stratified fluid

Kranenburg, C. (author)

Experiments on mixed-layer deepening in a straight wind flume initially containing a two-layer fluid were carried out. In order to simulate an effectively unlimited water body, or a situation where the presence of end walls is not yet noticeable, the water from the upper layer was withdrawn at the downstream end, and supplied again at the...

report 1983

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Leakage of Oil Following Rupture of Pipeline P/15-4 to Hook of Holland

Kranenburg, C. (author)

This report presents computational results concerning the buoyancy-driven leakage of oil resulting from a possible rupture of the planned pipeline P/15-4 to Hook of Holland. The computations were commissioned by R.J. Brown and Associates (Netherlands) b.v. (RJBA Job No. 7004.02). The specifications of the pipeline and oil as made available by...

report 1983

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Exchange Flow of Oil and Sea-Water in a Ruptured Submarine Pipeline

Kranenburg, C. (author)

The rupture of a submarine oil pipeline starts var10US mechanisms leading to an oil spill. Among these mechanisms the leakage of oil driven by the difference in specific gravities of oil and seawater is difficult to quantify. A simple mathematical model has been developed and laboratory experiments have been carried out to obtain an insight into...

report 1983

document

Buoyancy-driven leakage of oil from a ruptured submarine pipeline

Kranenburg, C. (author)

The rupture of a submarine oil pipeline starts various mechanisms leading to an oil spill. Among these mechanisms the leakage of oil driven by the difference in specific gravities of oil and sea-water is difficult to estimate. A simple mathematical model has been developed and laboratory experiments have been carried out to obtain an insight...

report 1983

document

Operational application of the Stalins method for maeasuring take-off and landing trajectories

Kranenburg, C.G. (author), Pool, A. (author), Willekens, A.J.L. (author)

The STALINS method calculates the trajectories from the outputs of an inertial sensing system. The principle of the method is described and a comparison is made with the results obtained from onboard cameras and a radio altimeter from 200 take-off and landing flight tests. The comparison shows that the STALINS method is at least as accurate as...

report 1983

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Stroming en Menging in Voorraadbekkens

Kranenburg, C. (author)

Dit rapport is opgesteld als bijdrage aan de PATO-cursus: Vloeistofmechanica voor de waterleiding-ingenieur In vele gevallen zijn waterleidingbedrijven aangewezen op oppervlaktewater om aan de vraag te kunnen voldoen. Omdat de kwantiteit en kwaliteit van het beschikbare oppervlaktewater soms grote fluctuaties vertonen, legt men wel voorraad- of...

report 1984