PAM-Flow 2000 now also for aero-acoustics simulationParis 06 March 2001 ESI Group announced its new generation of Computational Fluid Dynamics (CFD) software, PAM-FLOW 2000. New version offers aero-acoustics simulations for identifying and quantifying flow-induce noise sources. PAM-FLOW 2000 enhances coupling with PAM-CRASH. PAM-FLOW 2000can be used for simulating a numerical wind tunnel and numerical anechoic chamber.
PAM-FLOW is well known in the automotive and transportation markets for its accuracy in prediction of vehicle aerodynamics and climate control. The new version of PAM-FLOW 2000 offers the same accuracy in aero-acoustics. For the occupants of a passenger car, external wind noise at speeds over 100 kmph and noise generated by the Heating, Ventilation, Air Conditioning (HVAC) system become dominant compare to engine and road noise.
PAM-FLOW provides users with best-of-breed technology for identifying and quantifying flow-induced noise sources. Carmakers like General Motors optimize noise performance due to sunroof buffeting and car appendages, while suppliers use PAM-FLOW to predict flow-induced noise in rotating machinery. "After an extensive benchmarking of state-of-the-art commercial CFD codes, PAM-FLOW was the only software able to tell the design differences of Delphi's HVAC air blower in terms of aero-acoustic sound levels", said Dr. Lin-Jie Huang, Staff Engineer, Delphi Automotive Systems.
The new Advanced Data Model Reconstruction Technology feature reads surface meshes in formats such as Nastran, STL and DXF and reconstructs the surface meshes according to the physical resolution requirements of the simulation. Coupled with the PAM-FLOW automatic mesher and adaptive re-meshing, this capability can shorten the CFD modeling cycle from months to days or even hours.
New fluid-structure interaction approach provides more accurate simulation for airbag deployment, including the inflator, the unfolding of the folded airbag and the final formation of the airbag. Ford is using this fluid-structure coupling technology in crash tests to simulate the bio-fluid impact to the human brain and skull.
PAM-FLOW is available on Unix workstations and servers from Compaq, HP, IBM, SGI, and Sun, as well as major supercomputers from Cray, Fujitsu, and NEC, with both Shared Memory Processing (SMP) and Massive Parallel Processing (MPP) versions.
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