March 16, 2009 - Physics Press Conferences
Monday, March 16
Tuesday, March 17
|Super-Computations: Space Clouds, Hurricanes, and Other Fluids (session P5)||1:00 p.m.|
|From the collapse of planet-forming dust clouds to the coursing of blood through the human body to the aerodynamics of hurricanes, many of nature's most fascinating phenomena are all forms of fluid flow. As supercomputers have grown larger and larger in the last decade, scientists have found unprecedented opportunities to model the dynamics of these widely varied phenomena -- the subject of an invited session on fluid dynamics and computational science. Paolo Padoan of the University of California, San Diego will discuss how the dynamics of dust grains in turbulent flows plays an important role in many astrophysical processes, including the formation of precursor planets. George Karniadakis of Brown University will present a model of the human circulatory system that describes blood flow in vessels ranging in size from large arteries to tiny capillaries. Jacqueline Chen of Sandia National Laboratories will present high-fidelity simulations of a turbulent reacting flow -- an ethylene-air jet flame. Fuqing Zhang of Penn State University will discuss the use of high-performance computing facilities to model hurricanes. Said Elghobashi of the University of California, Irvine will focus on particle-laden turbulent flows, which are ubiquitous in nature (e.g. dust storms on Earth and Mars) and in industrial applications (e.g. liquid fuel and pulverized coal sprays in combustion chambers). Also at the press conference will be Pui-Kuen Yeung of Georgia Institute of Technology, who is chair of Session P5. |
|The Physics of the Great Painters (sessions W5 and Q5)||2:30 p.m.|
|Science and art are two different ways of portraying the world. Science cannot interpret art but it can comment on some of the physical attributes of art, which can have a bearing on such things as the authentication of paintings. Here four scientists will report on their computer analysis of patterns in the works of notable artists. Charles Falco, University of Arizona will speak about extending his study of optical effects (carried out in collaboration with the painter David Hockney) to the works of Monet and Renoir. Katherine Jones-Smith of Case Western University will provide a much-improved study of the supposed fractal nature of the drip paintings of Jackson Pollock. James Wang of Penn State who had previously tendered qualitative assessments of the paintings of Vincent van Gogh, will describe his ability now to provide a fuller accounting of brush strokes -- size, curvature, and relation to neighboring strokes. Peter Lu of Harvard will describe the origins of the complex tiling patterns evident in many medieval Islamic buildings. The tiles are arranged with a deceptively crystal-like orderliness that changes slightly from one place to the next, much like natural quasicrystals that straddle the line between true crystals and randomly ordered glass.|
The American Physical Society (www.aps.org) is a non-profit membership organization working to advance and diffuse the knowledge of physics through its outstanding research journals, scientific meetings, and education, outreach, advocacy and international activities. APS represents over 51,000 members, including physicists in academia, national laboratories and industry in the United States and throughout the world. Society offices are located in College Park, MD (Headquarters), Ridge, NY, and Washington, DC.