AMRClaw Description and Detailed Contents

The AMRClaw version of Clawpack provides Adaptive Mesh Refinement (AMR) capabilities in 2 and 3 space dimensions. (The two-dimensional code can also be used for 1-dimensional problems, see AMRClaw for 1d problems.)

See also:

• Adaptive mesh refinement (AMR) algorithms

• AMR refinement criteria

• Doxygen documentation of AMRClaw

• AMRClaw Flowcharts

Block-structured AMR is implemented, in which rectangular patches of the grid at level L are refined to level L+1. See Specifying AMRClaw run-time parameters in setrun.py for a list of the input parameters that can be specified to help control how refinement is done. The general algorithms are described in [BergerLeVeque98].

See ClawPlotItem for a list of 2d plot types that can be used to create a setplot function to control plotting of two-dimensional results. Some of the attribute names start with the string amr_, indicating that a list of different values can be specified for each AMR level. See Plotting with Visclaw and Using setplot.py to specify the desired plots for more about plotting.

Python plotting tools for 3d are still under development. For now, the Matlab tools from Clawpack 4.3 can still be used, see Plotting using Matlab.

• AMRClaw for 1d problems
  • Old approach, deprecated:
• Specifying AMRClaw run-time parameters in setrun.py
  • Input
  • Output
  • Run-time parameters
  • Special AMR parameters
  • Debugging flags for additional printing
• Sample setrun.py module for AMRClaw
• Adaptive mesh refinement (AMR) algorithms
  • Ghost cells and boundary conditions for AMR
  • Choosing and initializing finer grids
  • Flagging cells for refinement
  • For more details
• AMR refinement criteria
  • Flagging criteria
    • flag2refine
    • Richardson extrapolation
  • Specifying AMR regions
  • Implementation
  • Flagging criteria in GeoClaw
• Specifying flagregions for adaptive refinement
  • Using ruled rectangles as flagregions
• Ruled Rectangles
  • Contents
  • Examples
  • Relation to convex polygons
  • Other attributes and methods
    • ds
    • slu
    • bounding_box
    • mask_outside
    • read and write, and instantiating from a file
    • make_kml
    • A GeoClaw AMR flag region
  • A simple rectangle
  • Defining a Ruled Rectangle covering selected cells
    • Example covering the continental shelf
• Guiding AMR with adjoint flagging
  • Using adjoint flagging in GeoClaw
• Gauges
  • Gauge parameters in setrun
  • Plotting tools
  • Plotting gauge locations
  • Examples
• Doxygen documentation of AMRClaw
• AMRClaw Flowcharts