Performance of fluid-structure interaction based on analytical and computational techniques

TL;DRAbstract

Solving coupling of fluid and solid governing equations in fluid-structure interaction (FSI) is a common computational problem well known to mathematicians, scientists and engineers. Several algorithms exist for solving this problem. However, when the approach for the FSI solution is <em>Partitioned approach</em> (i.e., separated solvers for fluid and solid domains), the problem may not be solvable and obtain meaningful results. In fact, it has been shown that the general problem of solving the FSI system with partitioned approach is ``Added mass instability', i.e., extremely difficult and (it is believed) inefficient; thus, it is not suitable to be adopted for solving wide range of applications.<br>It turns out, though, that the time integration schemes used for structural acceleration have a strong impact on the efficiency of solving FSI system of equations. <br>It is found that amount of numerical damping can change the performance considerably. In particular, efficiency of solution

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