Author(s)

L.A. All & J.J. Rencis

Abstract

Coupling two-dimensional and axisymmetric BEM zones for turbo-machine applications LA. All, J.J. Rencis Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, Massachusetts ABSTRACT Many engineering applications, especially structures encountered by en- gineers in the aerospace industry, are geometrically very complex such as rotor engines. In addition, these structures are composed of differ- ent dimensionality components, i.e., two-dimensional and axisymmetric components. This work considers the boundary element method for heat transfer problem, where a coupling technique for two-dimensional and axisymmetric zones is introduced for the analysis of such structures as opposed to complex and expensive three-dimensional boundary element models. Isoparametric quadratic elements are used to model the bound- ary of the coupled model, and the multi-zoning (substructuring) concept is used to couple zones by satisfying specific compatibility requirements at their

Keywords