Currently, engineering analysis of stress and thermal effects in structures is typically performed in isolation from the analysis of fluid flow phenomena, despite the impact of flow-induced forces and heat transfer on a structure and the impact of a structure on the fluid. The Fluent-ABAQUS initiative will provide engineers with easy-to-use tools that will take into account these important coupling effects including sophisticated simulation of nonlinear structural responses.

The CFX Team in Germany was recently approached by a customer faced with the need to deliver his products to an ever-increasing number of clients, in a limited delivery period (one night). At his disposal is a single delivery vehicle, and the propulsion for the delivery vehicle is fixed at 9 RP (Reindeer Power). Therefore, reduced aerodynamic drag could lead to significant increases in vehicle speed, and consequently allow delivery to be made in the required time.

High-pressure food processing, using pressures between 1 and 10 kbar, permits preservation of aroma and vitamins, improvement of textural and sensory properties, and removal of harmful bacteria. The process must be carefully monitored, however, as localized variations in pressure or temperature can significantly influence the removal of bacteria. The process must therefore be uniform, especially in the health-sensitive field of microbial inactivation.

At TU München’s Chair of Fluid Mechanics and Process Control, we are investigating the effect of the fluid dynamics on bacteria during high-pressure food processing. Our research focuses on a 6.3-litre high-pressure chamber that is used to pressurize liquid food contained in five packages, placed on different shelves in the chamber. The chamber is filled with a pressure transferring liquid (in our case water) until the desired pressure level (4 kbar) is reached. The pressure is maintained for about 20 minutes - the time needed to kill the bacteria.

Since experimental methods for investigation at very high pressures, especially for industrial chambers, are not readily available, we have chosen CFD as a means to investigate scale-up and non-uniformity.

EnSight 7.6 runs as a 64-bit application able to take advantage of increased memory and data pipelines. When installing EnSight, users will find a new machine type, linux_2.4_64, that designates the 64-bit executables for these AMD systems.

Currently, AMD-based Solaris and Windows 64-bit systems are not supported. Contact CEI for these platforms. Running EnSight 7.6 as a 32-bit application under the Windows 64-bit or Linux operating system has not officially been tested nor is it supported.

CEI is currently testing a prototype of its software suite on the Macintosh OS X platform. Included in the suite are EnSight, EnSight Gold, EnLiten and EnVideo. CEI successfully demonstrated these prototype applications at the SuperComputing 2003 conference in Phoenix, Ariz.

This image makes for an interesting wallpaper background on your computer desktop. Celebrate this great event in aviation history with Fluent by downloading your free wallpaper now.

CFD is a vital technology for simulation, visualization, and prediction of fluid flow, heat and mass transfer, and chemical reactions. It is a critical part of the computer-aided engineering (CAE) lifecycle for manufacturing companies around the world. Fluent's CFD simulations are delivering major business benefits by enabling engineers to design for better equipment performance, more effective scale-up, improved safety, and higher productivity.