2-D Nonperiodic Boundary Conditions

Problem Specification

All units are dimensionless.

• Width = 4
• Height = 1 (before perturbation)
• Young's Modulus E = 1
• Poisson's Ratio nu = 0.3
• Prestraining epsilon_x = 1
• Surface tension sigma = Varying (see below)
• Initial Configuration = Band limited white noise (see below)
• Boundary conditions: v=0 at bottom, u=x at left/right

• Grid size 257x97=24929 nodes
• 49858 Degrees of freedom
• Timestep dt=0.0005

Results and Animations

The movies are encoded with DivX, download the "Standard DivX Codec(FREE)" from http://www.divx.com/divx.

Time between frames = 0.0025. The color shows the energy density, from low (blue) to high (red).

• Initial Configuration
  
  
  
  
• Sigma = 0.1
  
  DivX AVI (124kB), 121 frames.
  
  
  
• Sigma = 0.05
  
  DivX AVI (166kB), 122 frames.
  
  
  
• Sigma = 0.025
  
  DivX AVI (235kB), 133 frames.
  
  
  
• Sigma = 0.0125
  
  DivX AVI (190kB), 94 frames.