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ISSN Online: 2688-7231

ISBN Online: 978-1-56700-478-6

Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)
December, 27-30, 2017, BITS Pilani, Hyderabad, India

FLOW CONTROL STUDY IN LID-DRIVEN CAVITIES USING REDUCED ORDER MODELLING

Get access (open in a dialog) DOI: 10.1615/IHMTC-2017.1160
pages 821-825

Resumo

Modal Decompositions are an important tool in the study of vibration type problems where we can ascertain mode shapes and mode frequencies for a given oscillation. The Dynamic Mode Decomposition (or DMD for short) is way of performing a modal decomposition on fluid flows by collecting data from either a simulation or real life experiment. In this paper we have used the DMD to find "mode shapes" and "mode frequencies" of a Lid-Driven Cavity flow with both varying and non-varying boundary conditions in time using some modifications to the method. We then use these mode shapes and frequencies to construct a reduced-order model which can be used to predict future states of the flow at lower computational costs and allow us to use active flow control strategies.