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C. Wales, A. Gaitonde and D. Jones Stabilisation of reduced order models via restarting International Journal for Numerical Methods in Fluids 73

Article first published online: 12 JUN 2013 | DOI: 10.1002/fld.3814

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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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