Untersuchungen an einer pulsierten Siebbodenextraktionskolonne bei extremen Phasenverhältnissen

Rauscher, H; Blaß, Eckhart

doi:10.1002/cite.330630224

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A Stochastic Fluid Oscillator1

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2003

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“…An example for this can be found in the rotating discs or vibrating plates of extraction columns. Because of the heavy material wear, it is possible to try to overlie the mostly stationary streaming in the apparatus with an oscillating component, for instance when plunger pulsators are used in extractors [16,19]. A disadvantage of these constructions is their limited cubic capacity.…”

Section: A Stochastic Fluid Oscillatormentioning

confidence: 99%

Semicontinuity of multifunctions and a stochastic fluid oscillator

Fritsch¹

2003

Z Angew Math Mech

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Key words stochastic differential inclusion, locally Lipschitzean condition, semicontinuity of multifunctions, existence of solutions, stochastic fluid oscillations MSC (2000) 60H10, 34A60In this paper on stochastic differential inclusions with set-valued drift, we will consider the possible existence of strong solutions in the case of a kind of lower semicontinuous multifunctions as well as of upper semicontinuous ones. The dispersion matrix conditions are weakened in the classical way. To show existence results for such inclusions, we will use a locally Lipschitzean approximation of lower semicontinuous multifunctions. A set-valued stochastic system with an upper semicontinuous drift will be used to describe the motion of a fluid oscillator with small random perturbations.

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Section: A Stochastic Fluid Oscillatormentioning

confidence: 99%