Sökning: "One Dimensional Turbulence ODT"
Hittade 4 avhandlingar innehållade orden One Dimensional Turbulence ODT.
Sammanfattning : A stochastic model to study droplet/particle influence on the gas phase using the One-Dimensional-Turbulence model (ODT) is evaluated. To address one of the major problems for multiphase flow simulations, namely computational costs, the dimension-reduced model is used with the goal of predicting certain classes of these flows more efficiently. LÄS MER
Sammanfattning : This thesis presents a stochastic model to study turbulence modulation effects on gas phases caused by small droplets or more generally speaking particles to achieve a better understanding about the physics and with the aim to provide data for a subgrid-scale (SGS) model for Large-eddy-simulations. The one-dimensional-turbulence (ODT) model addresses one of the major issues for multiphase flow simulations, namely computational costs. LÄS MER
Sammanfattning : Numerical simulation of the spray behavior is an important part of engine research and is critical for combustion optimization. Successful implementation of the advanced modeling tools for sprays is strongly dependent on our current understanding of the physical processes involved. LÄS MER
Sammanfattning : Most new engines will use direct injection of the fuel, making the fuel spray a critical part of the engine. Fuel spray behavior controls engine performanceand emissions and yet there is much that remains unknown about how a spray breaks up, mixes, evaporates and burns. LÄS MER