Level Set Reconstruction Method

Level Set Reconstruction Method = {char_string}

Description / Usage

This card indicates the method used to perform the Huygens renormalization of the level set function. This card applies only if Level Set Renormalization Method is set to Huygens or Huygens_Constrained. Permissible values of {char_string} are:

POINTS

A list of points on the interface is formed and the renormalized distance is computed as the distance to the nearest point in this list; this is the default method.

FACETS

A list of connected facets on the interface is formed and the renormalized distance is computed as the distance to the nearest point on the nearest facet in this list. Currently this option is not supported for 3-dimensional calculations.

Examples

This is a sample input card:

Level Set Reconstruction Method = FACETS

Technical Discussion

As described for the Level Set Renormalization Method card, Huygens based renormalization is performed by reconstructing the level set surface and computing the distance to the nearest point on this surface. Here, the method of reconstructing the level set surface is addressed. Either a set of points on the interface is formed or a connected set of facets is formed. The advantage to using connected facets is that the interface is better described between the points on the interface. However, the calculation of the faceted geometry is slightly more expensive computationally. Also, the current implementation is limited to 2-dimensional simulations.