tailieunhanh - Báo cáo hóa học: " Research Article Simulation of Two-Dimensional Supersonic Flows on Emulated-Digital CNN-UM"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Simulation of Two-Dimensional Supersonic Flows on Emulated-Digital CNN-UM | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 923404 11 pages doi 2009 923404 Research Article Simulation of Two-Dimensional Supersonic Flows on Emulated-Digital CNN-UM Sandor Kocsardi 1 Zoltán Nagy 2 Arpad Csik 3 and Peter Szolgay2 4 1 Department of Image Processing and Neurocomputing Faculty of Information Technology University of Pannonia Egyetem 10 8200 Veszprem Hungary 2 Cellular Sensory and Wave Computing Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences 1518 Budapest Hungary 3 Department of Mathematics and Computational Sciences Szechenyi Istvan University 9026 Gyor Hungary 4 Faculty of Information Technology Pazmany Peter Catholic University 1083 Budapest Hungary Correspondence should be addressed to Sandor Kocsardi skocso@ Received 25 September 2008 Accepted 7 January 2009 Recommended by Victor M. Brea Computational fluid dynamics CFD is the scientific modeling of the temporal evolution of gas and fluid flows by exploiting the enormous processing power of computer technology. Simulation of fluid flow over complex-shaped objects currently requires several weeks of computing time on high-performance supercomputers. A CNN-UM-based solver of 2D inviscid adiabatic and compressible fluids will be presented. The governing partial differential equations PDEs are solved by using first- and second-order numerical methods. Unfortunately the necessity of the coupled multilayered computational structure with nonlinear spacevariant templates does not make it possible to utilize the huge computing power of the analog CNN-UM chips. To improve the performance of our solution emulated digital CNN-UM implemented on FPGA has been used. Properties of the implemented specialized architecture is examined in terms of area speed and accuracy. Copyright 2009 Sandor Kocsardi et al. This is an open access article distributed under the Creative Commons Attribution License .