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Class 8 Tractor Trailer Aerodynamics
Evaluating aerodynamic drag of class 8 trucks is critical for improving fuel economy, meeting EPA targets and maintaining a competitive edge in the industry. For a standard tractor trailer configuration, aerodynamic drag is responsible for approximately 30% of total fuel consumption. Reducing drag by 3% would improve fuel economy by 1%, which demonstrates the need for accurate methods to predict aerodynamic drag. Depending on available resources, truck companies may use one or more tools to evaluate drag, including wind tunnels and CFD software. This presentation focuses on the application of...
High Productivity CFD Workflows with STAR-CCM+ & FieldView: Real-World Success with HPC & CFD
Zipp Speed Weaponry used CFD simulation results, wind tunnel testing and their own creativity to rapidly develop a state-of-the-art product that succeeded in an already crowded bicycle racing wheel market. Their Firecrest wheels were a technological breakthrough that delivered 100% category revenue growth and the addition of over 120 new manufacturing jobs in Indiana in just two years, confirming their place as the established leader in this hotly contested market. With the help of Intelligent Light and CD-adapco, the company is working to rapidly develop a well-engineered, highly automated...
Cervelo Aerodynamic Development
The presentation will be divided in the following sections: 1. Cervelo Product Line Cervelo's product line description and the importance of aerodynamics. 2. New Methodology With the success of the aerodynamic development of the P5, Cervelo is looking to implement the same methodology to the rest of the product line. 3. Cervelo Aerodynamic Development How was the previously defined methodology applied to a new product and the benefits in terms of ideas and turnaround time. 4. Future work A description of the opportunities that STAR-CCM+ has been able to open for Cervelo.
Transient Radial Blower Simulation as Part of the Development Process
Behr GmbH & Co. KG is a leading supplier in the automotive industry in the field of thermal management. Radial blowers are a central component of the air-conditioning system of a passenger compartment. The target for the development of a radial blower is to increase the efficiency of the blower while reducing the noise level. This enables the provision of adequate air flow in all operating points. For supporting the development of radial blowers a CFD method based on transient DES simulations with STAR-CCM+ was developed. The development of the method was accompanied with various...
Virtual Testing for Automotive Components & its Integration into the OEM´s Product Creation Process
InDesA operates a suite of virtual test benches for automotive auxiliary components, such as fans, pumps, compressors and heat exchangers. The objective is to speed up design iterations by verifying CAD designs directly by virtual performance testing and without the need of building prototype components for physical bench testing. As automotive components from suppliers are integrated into larger systems this is done within the OEM’s development process and software environment. Consequently the component’s performance data must be adapted to suit the requirements of other simulation...
Overset Grids Technology in STAR-CCM+: Current State & Future Developments
In this presentation the overset grids methodology implemented in STAR-CCM+ will be first described, including its distinct features compared to similar approaches known from literature (like applicability to arbitrary polyhedral grids and implicit coupling of all grids). Next the access to this feature through the user interface will be explained. The advantages of overset grids compared to alternative approaches when performing parametric studies or simulating motion of bodies relative to each other will also be discussed. Several examples of the use of overset grids for both steady-state...
Fine Tuning of a Fast Catamaran Design to new Operating Conditions utilizing CFD & Optimization
A 39m catamaran operating near the critical hump speed of 18 knots has been optimized through parametric variation. Design objectives included the quality of the flow on the propeller plane and the required power. The catamaran, which was originally designed for a much higher speed of 32 knots, already showed a relatively good performance for the new design speed. Applying STAR-CCM+ in combination with the parametric design and optimization platform FRIENDSHIP-Framework allowed a very economic adjustment, keeping the hull form mostly unchanged. The enhanced flow on the propeller plane was...
Adaptation of STAR-CCM+ Numerical Wave Tank to an Offshore Floater Design Tool
Advanced features of STAR-CCM+, such as Volume Of Fluid, DFBI and overset grid techniques have made it possible to simulate extreme waves and their interaction with floating structure to provide essential design information such as wave run up, air gap, green water and wave impact load. However, the application of the Numerical Wave Tank (NWT) for floater design remains challenging due to its computational cost, especially for the simulation of the floater response in irregular waves. Simulation of irregular waves by a NWT requires a computational domain large enough to simulate the nonlinear...
STAR-CCM+ Simulations of In-Situ Thermal Treatment of Oil-Shale
One of the many research areas at the University of Utah Institute for Clean and Secure Energy is to assist in the commercial utilization of the vast energy stored in domestic oil shale and oil sands resources. We are exploring in-situ thermal treatment technologies of oil shale development because of their potential for reducing environmental footprints. We are taking the novel approach of applying High Performance Computing (HPC) using STAR-CCM+ and Validation and Uncertainty Quantification (V/UQ) to perform Computational Fluid Dynamics (CFD) based simulations to quantitatively predict...
We often talk with our customers about their “grand challenges", trying to understand exactly what it is that keeps them up at night thinking: “if I could just _________, that would be a real game changer for my business!” Regardless of which industry they come from, their answers are often quite similar: The majority of these discussions relate to evaluating the performance of an entire system. An uncomfortable truth about modern engineering is that there really are no easy problems left to solve. In order to meet the demands of industry, it's no longer good enough to do "a bit of CFD" or "...

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