Abstract
Large eddy simulations are computationally expensive. Apart from a fine mesh resolution a large number of timesteps is required to get significant results. This is due to the fact that not only does the simulation have to reach a statistically steady state (eg. fully developed flow), it then needs to run long enough to provide meaningful average values. This is even more the case when transient statistics such as shedding frequencies are needed (eg. around a square cylinder, see section 5.3) as the resolution of the frequency spectrum depends on the total number of samples available. For these reasons parallel computing is a necessary tool in order to deal with large eddy simulations.
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© 2016 Springer Fachmedien Wiesbaden
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Roos Launchbury, D. (2016). Parallel Performance. In: Unsteady Turbulent Flow Modelling and Applications. BestMasters. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-11912-6_6
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DOI: https://doi.org/10.1007/978-3-658-11912-6_6
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Publisher Name: Springer Vieweg, Wiesbaden
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Online ISBN: 978-3-658-11912-6
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