Search for dissertations about: "Lagrangian MECHANICS"
Showing result 1 - 5 of 75 swedish dissertations containing the words Lagrangian MECHANICS.
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1. Super-grid Linear Eddy Model (SG-LEM): Efficient mode- and regime-independent combustion closure for Large Eddy Simulation (LES)
Abstract : Next-generation combustion technology such as ‘lean burn’ and HCCI (Homogeneous Charge Compression Ignition) present new challenges for combustion modelling. The presence of locally varying combustion modes (premixed vs. non-premixed) and regimes (fast/non-fast chemistry vs. READ MORE
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2. A Realizable Hybrid Mixture-Bubble Model for Cavitating Flows
Abstract : Cavitating multi-phase flows include an extensive range of cavity structures with different length scales, from micro bubbles to large sheet cavities that may fully cover the surface of a device. To avoid high computational expenses, incompressible transport equation models are considered a practical option for simulation of large scale cavitating flows, normally with limited representation of the small scale vapour structures. READ MORE
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3. MULTICOMPONENT SPRAY-TURBULENCE INTERACTION
Abstract : Blended fuels are gaining importance in automotive industry owing to stringent legislations for emissions. It is important to understand the fuel spray formed as a consequence of injecting blended fuels into the engine (for direct injection engines) and also the influence of fuel spray on combustion properties. READ MORE
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4. Lagrangian Particles in Turbulence and Complex Geometries
Abstract : Wall-dominated turbulent dispersed multiphase flows occur in a variety of industrial, biological and environmental applications. The complex nature of the arrier and the dispersed phase is elevated to a higher level introducing geometrical complexities such as curved walls. READ MORE
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5. Large-Eddy Simulation of Gasoline Fuel Spray Injection at Ultra-High Injection Pressures
Abstract : Gasoline direct injection is a state-of-the-art technique that reduces hydrocarbon and particulate emissions. However, further improvement is needed to meet current as well as future emission regulations. READ MORE