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Presented at the STAR Global Conference 2012. Cutting CO2 emissions and improving fuel economy is a primary focus for the entire global product line-up at the Ford Motor Company. Optimizing the aerodynamics of the vehicle is a key contributor to achieving those fuel economy targets. To this end, the Ford Ranger provides a unique set of challenges for the aerodynamicists and designers as they balance the constraints of class leading design with the clear functional needs of a Global Compact Pick-Up. Adopting a systems engineering approach that integrates aerodynamics in an interdisciplinary...
Presented at the STAR Global Conference 2012. Newly designed passenger aircraft should meet safety and reliability requirements in imaginable emergency situations, one of which is the burn-through of a combustion chamber body of the main propulsion system (MPS) and of the auxiliary power unit (APU), both on the ground and in-flight. In accordance with the international safety standards, an emergency case is investigated using STAR-CCM+ and Abaqus in which, due to local disruption of the combustion chamber, a flame jet is erupted. As a result of the flame jet impingement some parts of the...
Presented at the STAR Global Conference 2012. Increasingly “life-time prediction” is an important focus of the turbocharger development process. With this in mind, as a consequence of the high thermo-mechanical loads to which the turbocharger system is exposed, the turbine impeller is a critical component. Conjugate Heat Transfer (CHT) simulation is performed for a stationary, high-load operation point of a diesel engine. The CHT model includes both, the flow through the turbine volute and the flow through the turbine impeller domain including the gap between backside of impeller and heat...
Presented at the STAR Global Conference 2012. The purpose of this presentation is to illustrate the methodology used at Airbus Military to develop simplified models of aircraft systems in order to characterise a particular component that is not following the general behaviour, implementing complex CFD simulation results at the same time. In this metholdology there is a clear interaction between 1D and zero-dimensional models with CFD simulation results. The use of the isolated CFD itself is not feasible due to time constraints, in particular: • Oil system heat transfer and pipe flow is...
Presented at the STAR Global Conference 2012. STAR-CCM+ continues to expand its presence in the aerospace industry due in no small part to excellent accuracy and robustness when applied to problems common to this field. This presentation shows recent aerodynamic benchmark validations performed using STAR-CCM+. Highlighted will be the American Institute of Aeronautics and Astronautics High-Lift Prediction Workshop case. This case presents some particularly difficult modeling challenges, including complex geometry, turbulence, boundary layer transition, and separation (stall). Discussions will...
Presented at the STAR Global Conference 2012. One of the difficulties in performing hypersonic aerodynamic performance prediction is determining accurate lift and drag profiles. This presentation illustrates the comparison of wind tunnel data for a 70° sweep slab delta wing to STAR-CCM+ predictions at various hypersonic Mach numbers. These comparisons include pressure distribution on the surface, heat transfer coefficients and forces / moments on the model. The Mach numbers investigated are Mach 6.8, 9.6 and 18.4 at angles of attack from -2°- 45°. Reference M. H. Bertram, P. E. Everhart ‘An...
Presented at the STAR Global Conference 2012. Aerospace engineering problems are characterized by great complexity, typically concerning large-scale systems involving numerous, different and often not independent issues. The need to maintain competitiveness in terms of design quality and reduction of design time and the need to reduce development costs are reflected in the necessity to develop an optimal design. This must be achieved in the early stages in order to reduce the entity and amount of cumbersome changes to be done in further design phases. A good response to these demands is the...
Presented at the STAR Global Conference 2012. Avoiding the formation of rings in rotary kilns is an issue of primary concern to the cement production industry. We developed a numerical combustion model that revealed in our case study that rings are typically formed in zones of maximal radiative heat transfer. This local overheating causes the overproduction of the liquid phase of the granular material that tends to stick to the oven's wall and to form rings. To counteract this phenomenon, we propose to increase the amount of secondary air injected to cool the oven. Experimental validation at...
Subsea production systems require different types of pipelines to transport fluids between components. A typical pipeline in performing this function is a jumper which usually connects a tree with a manifold. Rigid jumpers are standard shaped pipes that can withstand high static and dynamic loads due to internal pressure, temperature and external fluid effects. This is basically a fluid structure interaction (FSI) problem in which internal or external flow interacts with the structure creating stresses and pressures that deforms the pipe, and consequently alters the flow of the fluid. This...
More than any other, the oil and gas industry is dominated by fluids. From the extraction, processing and delivery of the hydrocarbons, to designing offshore platforms that are more able to resist the most extreme environmental conditions, understanding the behavior of fluids in and around your process is critical to success in the intensely competitive oil and gas industry.

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