HPCMP Users Group Conference (2006)
Denver, Colorado, USA
June 26, 2006 to June 29, 2006
Gabriel Weymouth , Institute of Technology, Cambridge, MA
Kelli Hendrickson , Institute of Technology, Cambridge, MA
Dick K.P. Yue , Institute of Technology, Cambridge, MA
Douglas G. Dommermuth , Naval Hydrodynamics Division, Science Applications International Corporation (SAIC), San Diego, CA
Paul Adams , USACE Engineer Research and Development Center, Major Shared Resource Center (ERDC MSRC)
Randall Hand , USACE Engineer Research and Development Center, Major Shared Resource Center (ERDC MSRC),
Prediction of the performance and non-acoustical signature of surface ships which feature such effects as breaking waves, spray and air entrainment is still beyond the capabilities of standard numerical solution methods. The near-field flow about a surface ship is characterized by complex physical processes such as: (i) spray sheet and jet formation; (ii) strong free-surface turbulence interactions with (large-amplitude) breaking waves; (iii) air entrainment and bubble generation; and (iv) post-breaking turbulence and dissipation. These physical phenomenon still require resolutions that are not feasible in practical engineering flows, despite continuing advances in computational resources. A two-pronged approach is proposed to develop methods to accurately predict these complex physical systems. First, physics-based closure models for steep breaking waves in the presence of turbulence are developed with results from high-resolution direct numerical simulations of the Navier-Stokes equations. Second, cutting-edge parallel computing capabilities and newly developed solution techniques are utilized to simulate the free-surface flow around naval combatants moving at high speed.
D. K. Yue, R. Hand, K. Hendrickson, P. Adams, D. G. Dommermuth and G. Weymouth, "Modeling Breaking Ship Waves for Design and Analysis of Naval Vessels," HPCMP Users Group Conference(HPCMP-UGC), Denver, Colorado, USA, 2006, pp. 169-176.