The solution of a launch vehicle trajectory problem by an adaptive finite-element method

✍ Scribed by Donald J. Estep; Dewey H. Hodges; Michael Warner

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 304 KB
• Volume: 190
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/s0045-7825(00)00339-x

✦ Synopsis

We describe a second-order discontinuous Galerkin ®nite-element method for the solution of an optimal control problem for determining the trajectory of a launch vehicle. We derive an a posteriori error estimate that is subsequently implemented as the basis for adaptive error control. We demonstrate that the computational error estimate is reliable and accurate while the adaptive error control provides a signi®cant gain in eciency over uniform discretizations.