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Application: Designing the Optimum Swim Stroke
Posted Tue November 20, 2001 @09:39AM
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Application Researchers at USA Swimming have been using FLUENT to model the flow around the hand and forearm of a swimmer during the propulsive phases of the freestyle and butterfly strokes. The program aims to determine the optimum swim stroke to provide maximum propulsive performance for elite swimmers.

During the initial stage of the investigation, researchers sought to determine the steady-state lift and drag coefficients for the hand and arm. The model for these simulations used k-epsilon turbulence modeling with non-equilibrium wall functions. Adaptive meshing was utilized to increase solution accuracy.

( Read Full Article | Application )


CFX Backs Team New Zealand
Posted Mon November 19, 2001 @10:10AM
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ANSYS CFX Team New Zealand, which as we previously reported is backed by SGI, has now received support from AEA Technology as the official CFD supplier to the team for the 2003 America's Cup challenge.
As defending champions, having won the America's Cup in 1995 and 2000, Team New Zealand hopes that CFX CFD software will enable them to achieve a third consecutive win - ensuring the team a place in the record books.
To improve the yacht's performance, Team New Zealand designers will be modelling wave patterns and drag around the hull. In particular, CFX is being used to calculate the drag on the keel bulb. A number of different keel bulb shapes are being examined to determine a design which provides the lowest center of gravity while minimizing drag. In addition, the team is studying induced drag on the appendages and using CFX to model sail aerodynamics.

( Read Full Article )


CFX Forms Alliance With PCA For Turbo Design
Posted Mon November 19, 2001 @09:51AM
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ANSYS CFX AEA Technology has announced an alliance with PCA Engineers Limited to offer a combined range of turbomachinery design software and services. PCA Engineers Limited is an international engineering consultancy specialising in design of turbomachinery and the development of turbomachinery design software. The agreement finalizes a working relationship which has spanned many years.
According to Dr.-Ing. Georg Scheuerer, CFX European Operations Director: “This Alliance will link both companies’ aspirations in turbomachinery design and analysis consultancy, turbomachinery design software and the development of advanced systems such as unsteady aero-mechanical software”.

( Post Comment )


CEI Announces EnSight 7.4
Posted Fri November 16, 2001 @06:26PM
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Post Processing CEI has announced version 7.4 of their EnSight and EnSight Gold products. The new version features a range of new capabilities including:
  • Extension of parallel processing to client operations
  • Support for SMP parallel computing on all hardware platforms
  • Server-of-server functionality has been extended
  • User definable mathematical functions
  • Visualization of N-sided polyhedra
  • Mass particle force effects, such as, drag and gravity
  • Stereo viewing support for all platforms
In addition, new collaborative features allow multiple users to simultaneously view and control a session. EnSight and EnSight Gold 7.4 are scheduled for release at the end of this year.

( Post Comment )


Application: CFD at Opel
Posted Thu November 15, 2001 @07:09PM
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Application CFD engineers at Opel have streamlined the simulation process for vehicle external aerodynamics. Their aim is to produce high-accuracy CFD predictions in the shortest turn-around time.

Opel utilizes a CAE database which allows the engineers to quickly extract components, such as the base chassis, external mirrors, and spoilers, and combine them into a CAD model. The pre-processing software ANSA is then used to produce a triangular surface mesh. Generation of the volume mesh is done using a variety of tools including Fluent's TGrid and GAMBIT mesh generators. Prism layers are utilized to provide good resolution of the viscous boundary layer and the remaining volume is filled with tetrahedra. Non-conformal interfaces are used to handle difficult geometry such as external mirrors, underbody, and side window steps.

( Read Full Article )


We've Got CFD Jobs!
Posted Thu November 15, 2001 @03:23PM
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CFD Review After a while in development, we are proud to announce the debut of the CFD Review Jobs Database!

The Jobs Database is an online meeting place for employers and recruits in the CFD field. Employers can post job openings and receive applications directly through CFD Review. Employers can even be notified via email of each new applicant. People looking for work can post their resume online and apply for jobs using the tools on the site.

Check out the Jobs Database now, and be sure to read the Employer FAQ and For Hire FAQ for answers to frequently asked questions.

( Post Comment )


 
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