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Book Series: Schriftenreihe des Instituts für Strömungsmechanik, Karlsruher Institut für Technologie ISSN: 21998868 ISBN: 9783731507574 Year: 2018 Volume: 3 Pages: VII, 180 p. DOI: 10.5445/KSP/1000080044 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-28 18:37:01
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The characteristic vortex formation in the ventricles is believed to be affected at an early stage of heart diseases. First, post-processing of patient-specific data has to be standardised. The chosen methods, a combination of Eulerian and Lagrangian techniques, are characterised by means of necessary spatial and temporal resolutions. Second, the goal is to find the best cost-benefit approach for modelling of the mitral valve, as it affects vortex formation and progression in the left ventricle.
ISBN: 9783731500759 Year: 2013 Pages: 297 p. DOI: 10.5445/KSP/1000035938 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:01:58
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The design of technical combustion systems demands efficient as well as precise models correctly predicting the interaction of turbulence and combustion. Main focus of this work is to develop and evaluate turbulent combustion models applicable for the simulation of modern lean combustion concepts using gaseous or liquid fuels. Within this work these models are both validated on model flames and applied to technical systems.
ISBN: 9783866449534 Year: 2013 Pages: XIV, 122 p. DOI: 10.5445/KSP/1000031357 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Physics (General)
Added to DOAB on : 2019-07-30 20:01:59
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The Smoothed Particle Hydrodynamics (SPH) method is proposed for studying hydrodynamic processes related to nuclear engineering problems. A problem of possible recriticality due to the sloshing motions of the molten reactor core is studied with SPH method. The accuracy of the numerical solution obtained in this study with the SPH method is significantly higher than that obtained with the SIMMER-III/IV reactor safety analysis code.
ISBN: 9783866444157 Year: 2009 Pages: IV, 137 p. DOI: 10.5445/KSP/1000012375 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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Mit der Motivation, einen strömungsmechanischen Beitrag zur Planung und Bewertung von Herzoperationen zu leisten, wurde am Institut für Strömungslehre das Karlsruhe Heart Model (KaHMo) entwickelt. Ziel dieser Arbeit war die abschließende Entwicklung des KaHMo-MRT hin zu einem einsatzfähigen Modell für die klinische Anwendung. Im Fokus standen hierbei die Modellierung des Vorhofs sowie die Validierung der linken Herzkammer.
ISBN: 9783866444836 Year: 2010 Pages: IV, 164 p. DOI: 10.5445/KSP/1000015953 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:01
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Diese Arbeit befasst sich mit der numerischen Modellierung von monolithischen Autoabgaskatalysatoren unter Berücksichtigung verschiedener Transportmodelle in Gasphase und poröser Washcoatschicht sowie heterogener Reaktionsmechanismen, die auf Elementarreaktionen aufbauen. Hierbei wird der Einfluss mehrerer Modellparameter auf die Schadstoffumsätze im Katalysator mit Hilfe des Softwarepakets zur Simulation reaktiver Strömungen DETCHEM untersucht.
Book Series: Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie ISSN: 21929963 ISBN: 9783731502524 Year: 2014 Volume: 42 Pages: VI, 225 p. DOI: 10.5445/KSP/1000042451 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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This presentation deals with simulation studies that will be interpreted as numerical experiments. Porous structures are modelled in three dimensions (microstructure models). Heat transfer and pressure drop of the flow through a porosity is analysed using the numerical solution of the Navier-Stokes equations (CFD). Empirical correlations for simplified calculations are presented that can be used by engineers for rough estimates and design of components with porosities like metal foam.
ISBN: 9783731505853 Year: 2017 Pages: XVIII, 149 p. DOI: 10.5445/KSP/1000059807 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:02
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Soot formation in a laminar and a turbulent diffusion flame as well as the formation of iron oxide nanoparticles in an iron pentacarbonyl doped near stoichiometric H?/O?/Ar-premixed flame have been investigated numerically. The particular modus operandi of the simulated test cases is described. In the case of the turbulent flame the impact of the turbulent closure of the single particle source terms on particle size distribution is shown.
ISBN: 9783731504474 Year: 2016 Pages: 400 p. DOI: 10.5445/KSP/1000050392 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
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Karlsruhe Institute of Technology (KIT) is developing the parallel computational fluid dynamics code GASFLOW-MPI as a best-estimate tool for predicting transport, mixing, and combustion of hydrogen and other gases in nuclear reactor containments and other facility buildings. GASFLOW-MPI is a finite-volume code based on proven computational fluid dynamics methodology that solves the compressible Navier-Stokes equations for three-dimensional volumes in Cartesian or cylindrical coordinates.
Book Series: Dissertationsreihe am Institut für Hydromechanik des Karlsruher Instituts für Technologie / Karlsruher Institut für Technologie (KIT), Institut für Hydromechanik ISSN: 14394111 ISBN: 9783866449008 Year: 2012 Volume: 2012,1 Pages: XXXII, 154 p. DOI: 10.5445/KSP/1000029253 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-30 20:01:58
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This thesis aims to contribute to a better understanding of turbulent open channel flow, sediment erosion and sediment transport. The thesis provides an analysis of high-fidelity data from direct numerical simulation of (i) open channel flow over an array of fixed spheres, (ii) open channel flow with mobile eroding spheres, (iii) open channel flow with sediment transport of many mobile spheres. An immersed boundary method is used to resolve the finite-size particles.
ISBN: 9783731500872 Year: 2013 Pages: VIII, 216 p. DOI: 10.5445/KSP/1000036117 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:02
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A multiscale simulation model is developed by combining the CFD Simulation and the population balance equations to describe a transient process of fluidized bed spray granulation. In this model, the CFD simulation generates the particle growth and nucleation rates in consideration of fluid dynamics, drying and multiple interactions, such as drops deposition, dust integration and nucleation between different particles (drops, dust and granules).
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