Investigation of pressure in pipe subjected to axial-symmetric pulse loading

The dynamic response of fluids in pipelines impacted by an external pulse l oading with consideration of fluid-structural interaction effects was inves tigated. Two simple models to analyze the response of the fluid have been p roposed. The simple models eliminate the need to solve the otherwise compli cated fluid-structure interaction. The models predict the pressure magnitud e and the pressure wave propagation through the pipeline. To verify the res ults from the simple models, finite element analyses with the ANSYS code co nsidering fluid-structure interaction have been conducted. In the analyses, fluid-structure interaction effects have been considered by employing dire ct coupling elements. A comparison between the results from the simple mode ls and the ANSYS analyses has been conducted. The simple models are shown t o provide an easy way to estimate the pressure. (C) 2001 Elsevier Science L td. All rights reserved.