نتایج جستجو برای: dem simulation

تعداد نتایج: 578333  

    LISFLOOD-FP belongs to a new generation of hydrodynamic models of flood simulation, which is implemented by a digital elevation map for the river and the waterways, route information and flow rates The LISFLOOD-FP features are two-dimensional hydraulic models: 1. based on raster 2. large scale 3. ease of formulation and high computational efficiency 4. simplicity of use 5. spatial adjustmen...

2015
Daniela Fisseler René Reiners

Modelle im Industrie 4.0-Kontext sind ein wichtiges Hilfsmittel um Komplexität bei Produktionssystemen unter Kontrolle zu bekommen und sollen in der Betriebsphase verwendet werden um beispielsweise im Voraus mögliche Probleme zu erkennen. In dieser Arbeit stellen wir einen modellbasierten Ansatz zur Überwachung von Produktionsprozessen vor, bei dem Sensornetzwerke mit einem ausführbaren Modell ...

2008
T. Ishikawa S. Miura

This paper proposes a new analytical procedure to simulate the frost heave of granular materials. The objective of the research is to examine the applicability of discontinuous analysis to numerical simulation for the mechanical behaviour of granular materials subjected to freeze-thaw action. In this paper, numerical simulations of freeze-thawing triaxial compression tests for glass beads were ...

2017
Miao Wu Peng Shi Ang Chen Chen Shen Pengyuan Wang

Many hydrological algorithms have been developed to automatically extract drainage networks from DEM, and the D8 algorithm is widely used worldwide to delineate drainage networks and catchments. The simulation accuracy of the SWAT model depends on characteristics of the watershed, and previous studies of DEM resolution and its impacts on drainage network extraction have not generally considered...

Journal: :Praxis der Informationsverarbeitung und Kommunikation 2012
Till Steinbach Franz Korf Thomas C. Schmidt

Till Steinbach Hochschule für Angewandte Wissenschaften Hamburg Berliner Tor 7 20099 Hamburg Deutschland [email protected] Till Steinbach ist wissenschaftlicher Mitarbeiter an der Hochschule für Angewandte Wissenschaften (HAW) Hamburg, wo er zuvor Informatik studierte. Anfang 2011 schloss er seine Masterarbeit zur Simulation von Echtzeit-Ethernet basierten Fahrzeugnetzen ...

2010
Aleksas Mirinavičius Darius Markauskas Rimantas Kačianauskas

The Discrete Element Method (DEM) recently presents numerical tool widely used in simulation of heterogeneous solids. The method captures dynamic behaviour of solid by considering motion and interaction of material particles. The most computationally expensive procedure of the DEM is search of contacts for particles, therewith each pair of colliding particles has to be identified. To investigat...

2015
H. C. P. Karunasena W. Senadeera

A coupled SPH-DEM based two-dimensional (2-D) micro-scale single cell model is developed to predict basic cell-level shrinkage effects of apple parenchyma cells during air drying. In this newly developed drying model, Smoothed Particle Hydrodynamics (SPH) is used to model the low Reynolds Number fluid motions of the cell protoplasm, and a Discrete Element Method (DEM) is employed to simulate th...

2006
Kurt Christian Kersebaum Claas Nendel

Es wird ein Modell vorgestellt, welches die N-Dynamik im Weinbau simuliert. Basierend auf dem Modell HERMES wurden Modifikationen zur speziellen Berücksichtigung von Managementmaßnahmen im Weinbau vorgenommen. Das Wachstumsmodell für Wein beinhaltet neben einer mehrjährigen Simulation des Rebenwachstums auch die Möglichkeit einzelne Schnittmaßnahmen organspezifisch zu berücksichtigen und das Sc...

ژورنال: آبخیزداری ایران 2022

The spatial quality of the Digital Elevation Model (DEM) has a great effect on the Soil and Water Assessment Tool (SWAT) semi-distributed model. The purpose of this study was to evaluate the effect of spatial accuracy of three DEMs with spatial resolutions of 10, 50 and 200 m on the results of daily discharge simulation in the Arazkuseh subwatershed located in Gorganroud watershed, Golestan pro...

1996
Bin Liang Yangsheng Xu Marcel Bergerman

In this paper, we discuss the problem of how a free-floating space manipulator can be mapped to a conventional, fixed-base manipulator which preserves both its dynamic and kinematic properties. This manipulator is called dynamically equivalent manipulator (DEM). The DEM concept not only allows us to model a free-floating space manipulator system with simple, well-understood methods, but also ca...

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