Title :
Parallel Simulation of Transient Magnetorheological Direct Shear Flows Using Millions of Particles
Author :
Sherman, Stephen G. ; Paley, Derek A. ; Wereley, Norman M.
Author_Institution :
Dept. of Aerosp. Eng., Univ. of Maryland, College Park, MD, USA
Abstract :
Magnetorheological (MR) fluids consist of micrometer scale iron particles mixed in a carrier fluid, and have found widespread use in semiactive dampers due to their ability to develop a yield stress. Under shear, MR fluids form lamellar sheets, however simulation work has been unable to demonstrate this behavior in fluid elements of experimental volume scales (~ 1 mm), as it requires simulating over one million particles. Nvidia´s CUDA environment enables us to simulate at this scale. We then measure sheet formation using metrics of chain and sheet formation, and examine the effects of simulation volume scale on sheet formation.
Keywords :
magnetic fluids; magnetorheology; parallel architectures; shear flow; yield stress; Nvidia CUDA environment; carrier fluid; lamellar sheet; magnetorheological fluid; parallel simulation; semiactive damper; transient magnetorheological direct shear flow; yield stress; Atmospheric measurements; Boundary conditions; Graphics processing unit; Particle measurements; Solid modeling; Transient analysis; CUDA; lamellar; magnetorheological (MR);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2201214
