Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Calculating the Explicit Probability of Entrainment Based on Inertial Acceleration Measurements
A new method for the approximation of the explicit probability of entrainment for individual coarse particles is presented. The method is based on the derivation of inertial acceleration measurements, space-state approximation of the dynamics close to entrainment, and the probabilistic approximation of the threshold inertial acceleration that causes incipient motion. Results from flume experiments with a custom-made inertial measurement unit enclosed in an idealized spherical enclosure, under varied flow conditions (achieved through slope change) and two different arrangements (saddle and grain-top positions) are presented to demonstrate the application of the method. The analysis supports the modification of the existing flow velocity–based entrainment criteria so they respect the particle-frame realization of forces during incipient motion.
Calculating the Explicit Probability of Entrainment Based on Inertial Acceleration Measurements
A new method for the approximation of the explicit probability of entrainment for individual coarse particles is presented. The method is based on the derivation of inertial acceleration measurements, space-state approximation of the dynamics close to entrainment, and the probabilistic approximation of the threshold inertial acceleration that causes incipient motion. Results from flume experiments with a custom-made inertial measurement unit enclosed in an idealized spherical enclosure, under varied flow conditions (achieved through slope change) and two different arrangements (saddle and grain-top positions) are presented to demonstrate the application of the method. The analysis supports the modification of the existing flow velocity–based entrainment criteria so they respect the particle-frame realization of forces during incipient motion.
Calculating the Explicit Probability of Entrainment Based on Inertial Acceleration Measurements
Maniatis, Georgios (Autor:in) / Hoey, Trevor B. (Autor:in) / Hassan, Marwan A. (Autor:in) / Sventek, Joseph (Autor:in) / Hodge, Rebecca (Autor:in) / Drysdale, Tim (Autor:in) / Valyrakis, Manousos (Autor:in)
04.11.2016
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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