Author(s)

C.F. Loeffler, A. Bulcao & P.C. Oliveira

Abstract

A boundary element formulation is presented for consistently treating fast hydraulic transients in liquid-filled piping systems. A damping effect is assumed, resulting of elastic deflection of the pipe walls under transient internal pressures. The proposed method is based on the dual reciprocity technique which allows a kind of modeling dealing only with boundary integrals. Houbolt's time stepping scheme is employed to advance the solution. A classical application is also presented and its solution is compared with analytical solution. 1 Introduction Possibly the most important development in Boundary Element Theory in recent years is the Dual Reciprocity technique. This integral formulation leads to boundary equations which, besides being short and easy to operate,

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