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Opened 4 years ago

Last modified 4 years ago

#1630 confirmed defect

ML_BSSN harmonic shift is ill-posed

Reported by: Erik Schnetter Owned by:
Priority: major Milestone:
Component: EinsteinToolkit thorn Version: development version
Keywords: Cc:

Description

The implementation of the ML_BSSN harmonic shift is ill-posed. It should use the evolved Gamma variables instead of taking metric derivatives. A robust stability test clearly shows an instability: higher resolutions have faster growing errors.

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Change History (1)

comment:1 Changed 4 years ago by Ian Hinder

Status: newconfirmed

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