Advantages and Disadvantages of a Simultaneously Coupled Least-Squares Finite Element Formulation for Fluid-Structure Interaction Conference Paper uri icon


  • Fluid-structure interaction problems prove difficult due to the coupling between fluid and solid behavior. Typically, different theoretical formulations and numerical methods are used to solve fluid and structural problems separately. The least-squares finite element method is capable of accurately solving both fluid and structural problems. This capability allows for a simultaneously coupled fluid structure interaction formulation using a single variational approach to solve complex and nonlinear aeroelasticity problems. The simultaneous solution method was applied to aeroelasticity problems with a known analytic solution. Acheiving these exact results required unique iterative methods to balance each field's weighting factor within the simultaneous solution scheme.

name of conference

  • 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference

published proceedings

  • 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference

author list (cited authors)

  • Rasmussen, C., Canfield, R., & Reddy, J. N.

citation count

  • 1

complete list of authors

  • Rasmussen, Cody||Canfield, Robert||Reddy, JN

publication date

  • September 2008