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The glass container production is generally not an easy process to operate and companies often need much time and money to obtain products of an acceptable quality. Glass is indeed a material having an extremely complex behavior to predict during manufacturing and, until now, the tuning of production parameters is completely bound to the operator’s experience. To overcome this sticky situation, Bottero, a process-oriented company operating worldwide in the glass machinery field, has developed a simulation based methodology in cooperation with university laboratories and production experts...
Micromixers are key components in several micro electro-mechanical and lab-on-a-chip systems, which are increasingly applied in fields such as chemistry, chemical synthesis, bio-technology and environment control. A CFD-based study is presented, which includes design modeling, flow and mass transfer simulation and geometric parametric analysis of a passive micromixer that presents curved shape obstacles and grooves in the mixing channel as main geometric features. The parametric study helps to identify the effect of some geometric dimensions on mixing quality, pressure loss and shear stress...
STAR-CCM+ is used in the chemical and process industries widely. CD-adapco is investing in further development of STAR-CCM+ to address the challenging needs of future in this industry. In this talk, some parallels and contrasts on the use of CFD in the automobile and chemical industry will be drawn. Criteria for success will be discussed followed by an outline of the future developments.
This analysis investigates the fluid dynamics behaviour of the pneumatic system for a coffee roasting plant and particular attention is devoted to the roasting process of the coffee beans. A numerical model is constructed to simulate the complete thermo-pneumatic system that is employed in a reference plant. The numerical tool includes a predictive model for the simulation of the heat and mass transfer between the hot air flow and the coffee beans in order to estimate the coffee roasting process. Thus, submodels for the evaporation of the coffee moisture content and the coffee reactions due...
This presentation will show how STAR-CCM+ software can be used to increase the performance of night ventilation in a courtyard house. Night ventilation is one of the passive cooling methods which are used in buildings, and it depends on the use of renewable-energy sources for cooling purposes. This method is usually used in traditional courtyard houses in places with hot dry climates. The attention for such a type of house is increasing due to the global shortage of energy supplies. The performance depends on many factors, but some of them intersect with other building requirements. For...
According to the Institute for Energy of the European Commission Joint Research Centre, HVAC (Heating, Ventilation and Air Conditioning) accounted for 11% of the EU electricity consumption in 2007. Annual energy simulations of buildings are increasingly being used for optimization of energy consumption. These simulations primarily rely on one-dimensional methods. Computational Fluid Dynamics on the other hand are generally utilized in building applications among others for predicting thermal comfort and developing HVAC components. Currently annual CFD simulation of one room or even an entire...
Aircraft icing is a major concern in aircraft development because it can degrade aerodynamic and engine performance, produce false indications on flight instruments, and prevent correct operation of control surfaces, landing gear, and brakes. This presentation will discuss simulation of aircraft icing topics, from design of thermal ice protection systems to prediction of accreted ice shapes and performance degradation. Various challenges, modeling approaches, and results will be presented. Historically, such simulations have been rather segmented, with much time and effort spent passing...
Recent advances in automated mesh generation, availability of high-fidelity and fully-coupled physics, and increased computational power are necessary and enabling factors for CFD-based design of next generation rotor-craft systems. The incorporation of CFD estimates early in the design stage is beneficial for obtaining improved performance predictions as well as to reduce the number of design iterations required. It is with this aim that numerous physics capabilities and enhancements were added to STAR-CCM+ for complete rotorcraft simulations. Rotor performance prediction methods available...
Numerical simulations of the DLR-F11 wing/body high-lift configuration using the finite-volume-based solver STAR-CCM+ were performed for the 2 nd AIAA CFD High Lift Prediction Workshop (HiLiftPW-2). Unstructured polyhedral meshes were generated using STAR-CCM+ based on the provided gridding guidelines, and the effects of grid refinement were assessed. The simulations employed a steady-state RANS approach using both the SST k- turbulence model and a formulation of the standard k- model including the Durbin scale limiter. The effect of Reynolds number was assessed by simulating both low and...
'The hardware for a Mars exploration mission shall be designed to operate during exposure to the Martian dust devil winds. The current numerical investigation aims to predict the aerodynamic loads and the convective heat transfer coefficient on the surface of the geophysical instruments deployed on Mars. An additional issue is the stability analysis of the payload, according to the maximum ground slope detected. A detailed 3D model of the instruments has been realized, discretizing the fluid domain with a high-resolution volume grid of more than 3 million tetrahedral cells. The Martian flow...

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