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Licensed Unlicensed Requires Authentication Published by De Gruyter 2018

4. Numerical methods for unsteady thermal fluid structure interaction

From the book Fluid-Structure Interaction

  • Philipp Birken and Azahar Monge


We discuss thermal fluid-structure interaction processes, where a simulation of the time-dependent temperature field is of interest. Thereby,we consider partitioned coupling schemes with a Dirichlet-Neumann method. We present an analysis of the method on a model problem of discretized coupled linear heat equations. This shows that for large quotients in the heat conductivities, the convergence rate will be very small. The time dependencymakes the use of time-adaptive implicitmethods imperative. This gives rise to the question as to how accurately the appearing nonlinear systems should be solved, which is discussed in detail for both the nonlinear and linear case. The efficiency of the resulting method is demonstrated using realistic test cases.

© 2017 Walter de Gruyter GmbH, Berlin/Munich/Boston
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