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
AbstractA 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
AbstractA 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
Hoey, Trevor B (Autor:in) / Hassan, Marwan A / Maniatis, Georgios / Sventek, Joseph / Hodge, Rebecca / Valyrakis, Manousos / Drysdale, Tim
2017
Aufsatz (Zeitschrift)
Englisch
Calculating the Explicit Probability of Entrainment Based on Inertial Acceleration Measurements
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