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Application: CFD Helps Improve Torque Converters
Posted Tue November 12, 2002 @08:15AM
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Application By Youssef Dakhoul
Caterpillar Transmission Business Unit
USA

Caterpillar is a world leader in the manufacture of heavy equipment such as track-type tractors, wheel loaders and off-highway trucks, all requiring highly sophisticated torque converters in their power transmission devices. In its Transmission Business Unit (TBU), which designs and manufactures these torque converters, engineers use CFD to evaluate a wide range of possible designs to reach the best possible efficiency, quality and durability at the lowest possible cost.

The most crucial components of a torque converter are the impeller, turbine and stator wheels, which are arranged in a closed loop. Finding the correct blade shapes is a major iterative effort involving: 3-D blade geometry specification, 1-D converter performance and thrust prediction, and 3-D CFD analysis of the oil flow in the converter.

We use CFX-TurboGrid and CFX-TASCflow for our CFD analysis. CFX-TurboGrid’s ‘templates’ greatly reduce our grid generation effort and allow us to create high-quality 3-D grids for the three bladed passages with minimum effort.

( Read Full Article | Application )


Events: Fluent offers Free Engine Simulation Seminar
Posted Mon November 11, 2002 @04:45PM
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ANSYS FLUENT Pushing the Envelope in Engine Simulation
A one-day Seminar on Friday, December 13th from 10:00am to 2:30pm at the Hewlett Packard Facility in Novi, Michigan.

Fluent Inc., Optimum Power, and Hewlett Packard have come together to present a free workshop featuring the latest technology in engine modeling. By coupling the innovative 1D gas dynamics modeling capabilities within VIRTUAL ENGINES with the full 3D moving mesh simulations in FLUENT6, you can apply "the best of both worlds" to your own modeling process, which means more accurate simulations used earlier in the design cycle.

To find out more about this workshop and about your chance to see live demonstrations of the products, learn about new and upcoming functionality and see industrial validation cases, visit: http://www.fluent.com/solutions/automotive/seminar /

We look forward to meeting you!

( Post Comment | Events )


New Software: EASA Version 2 Released
Posted Mon November 11, 2002 @04:06PM
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ANSYS CFX AEA Technology has announced Version 2.0 of EASA (Enterprise Accessible Software Applications) that provides substantial improvements in its ability to provide simplified access to complex technical software.

“EASA provides an intuitive Web-based environment through which users can access any software application, commercial or in-house. This makes it possible to expand access to a company’s software tools without providing specialized user training and greatly simplifying deployment and maintenance,” said Sebastian Dewhurst, Vice President, Enterprise Applications for AEA Technology Engineering Software. The new version offers the ability to include 3D graphics within the custom applications created in the EASA environment. It also provides several new user interface options and a graphical tool that greatly simplifies linking the EASA applications to underlying software. Finally, EASA 2.0 includes a new optimization module that automatically searches a defined parametric space for the optimal solution as defined by the user.

( Read Full Article | New Software )


Application: Electronic Cooling Simulation Helps Reduce Design Time
Posted Mon November 11, 2002 @11:45AM
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Application By Dr. Samir El-Khabiry
Hamilton Sundstrand
Rockford, Illinois

Electronics cooling simulation is helping a major aerospace manufacturer reduce design time while minimizing system weight. Thermal management is important for safe and reliable operation of all electronic equipment, and is especially so for airborne systems. Yet it can take several months and cost on the order of $10,000 to build and test a single prototype for certain equipment. For Hamilton Sundstrand, a maker of power modules for aerospace and marine applications, these obstacles have been overcome by using computational fluid dynamics (CFD) software to evaluate the effectiveness of different designs. By using simulations to better understand the airflow within each proposed device, engineers can determine the best methods for heat removal before the first prototype is built. In this manner, the company can often find novel ways to improve thermal management while reducing component weight.

During the past several years in all sectors of the electronics business, system functionality has been steadily increasing while system size has been steadily decreasing. The combination of these trends has led to a steady increase in the amount of heat generated per unit volume. Removing internally generated heat requires an effective path along which the heat can flow from the heat-dissipating components to the surroundings. To meet this need, a variety of cooling techniques is available to design engineers including, for example, conduction, natural convection, forced-air cooling, radiation cooling, and liquid cooling. Selecting and eventually optimizing thermal management has relied on, traditionally, building a series of physical prototypes using different cooling methods, and measuring the performance of each.

( Read Full Article | Application )


New Software: Blue Ridge Numerics Announces Release of CFdesign v6.0
Posted Thu November 07, 2002 @08:15AM
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News Blue Ridge Numerics Inc. announces the release of CFdesign® v6.0 software for fluid flow and heat transfer simulation. CFdesign v6.0 focuses on rapid product optimization with new capabilities to enable mainstream product development engineers working on tight deadlines to simulate multiple (10, 20, even 100) design scenarios simultaneously and then interactively visualize, compare, and share simulation results throughout the process.

The speed in which CFdesign uses native MCAD models to analyze and qualitatively compare design variations is what sets CFdesign apart from traditional CFD applications. On average, implementing CFdesign can reduce the time it takes to develop, test, and prove a new product design by 70% while also reducing the costs associated with staff time and materials by 65%.

( Read Full Article | New Software )


Fluent to Use PTC's Geometry Kernel
Posted Tue November 05, 2002 @05:54PM
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ANSYS FLUENT Fluent has signed a license agreement to use PTC's Granite ONE software development platform.

The Granite ONE Interoperability Kernel facilitates the creation and exchange of feature-based solid models using the same industrial strength algorithms and powerful associativity mechanisms at the heart of Pro/ENGINEER, a recognized leader at modeling complex geometry. Independent software vendors are now able to incorporate the Granite One platform into their own products and immediately have automatic native file access to the geometry of all other Granite One applications.

PTC's Granite ONE Interoperability Kernel has now been licensed to more than 25 software OEM's as well as several Engineering and Manufacturing Companies.

Update (Thursday 07 Nov 2002)

Fluent has said that they will utilize Granite ONE to provide interoperability between a range of MCAD solutions and its electronics cooling thermal management software, Icepak. The integration of Granite ONE will enable Icepak users to share native Pro/ENGINEER part and assembly data. This data, or the data from any other Granite Application will drive associative update to Icecad applications. Icepak will be further enhanced by leveraging Granite for neutral file exchange (e.g.,IGES, STEP) with other CAD solutions.

( Post Comment )


 
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