C. Wales, A. Gaitonde and D. Jones Stabilisation of reduced order models via restarting International Journal for Numerical Methods in Fluids 73
Reduced order models of continuous high order systems are usually produced in the discrete time domain for a fixed time step. When using an ROM as a surrogate for the high order system for continuation, an equivalent continuous ROM that can be used for any time step is required. A discrete ROM may work for the time step used in construction, but leads to an unstable continuous ROM. This problem is overcome by the restarting approach presented in this study.
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