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Showing result 1 - 5 of 29 swedish dissertations matching the above criteria.
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1. Large eddy simulation using linear eddy sub-grid mixing modeling
Abstract : As emissions regulations are getting stricter and efficiency requirements of engines are increasing, different concepts to improve combustion are beinginvestigated. For example lean stratified premixed combustion, homogeneous charge compression ignition(HCCI), use of more exhaust gas recirculation (EGR) to reduce NOx etc. READ MORE
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2. Large eddy simulation of combustion using linear-eddy subgrid modeling
Abstract : As emissions regulations are getting stricter and efficiency requirements of internal combustion engines (ICE) are increasing, different concepts to improve combustion are being investigated. For example lean stratified premixed combustion, homogeneous charge compression ignition (HCCI), use of more exhaust gas recirculation (EGR) to reduce NOx etc. READ MORE
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3. A Representative Interactive Linear Eddy Model
Abstract : To further improve the efficiency and emissions profiles ofinternal combustion engines, many new combustion conceptsare currently being investigated. Examples includehomogeneous charge compression ignition (HCCI), stratifiedcharge compression ignition (SCCI), lean stratified premixedcombustion, and the use of high levels of exhaust gasrecirculation (EGR) in diesel engines. READ MORE
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4. 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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5. A pressure coupled Representative Interactive Linear Eddy Model (RILEM) for heavy-duty truck engine combustion simulations
Abstract : Internal combustion engines (ICE) are frequently debated due to their environmental consequences. Although the switch to electromobility is currently happening for light and medium-duty vessels, the transition for ships and heavy-duty trucks is more complex. The primary problem in the shift is the incapability of matching the range of ICE. READ MORE