%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/3F2UALS
%3 melendez_parametric.pdf
%4 sid.inpe.br/mtc-m21c/2019/02.19.13.00
%8 Feb.
%9 journal article
%@issn 0029-8018
%A Meléndez Vásquez, Joseph Arthur,
%A Avila, Juan Pablo Julca,
%@secondarytype PRE PI
%B Ocean Engineering
%D 2019
%K Structural dynamic response, Large displacements, Corotational formulation, Slug flow.
%P 169-185
%@secondarymark A2_ENGENHARIAS_III A2_ENGENHARIAS_I
%T A parametric analysis of the influence of the internal slug flow on the dynamic response of flexible marine risers
%V 174
%X This paper presents a two-dimensional parametric analysis of the influence of an internal slug flow on thestructural dynamic response of flexible risers. The parametric analysis allow us to study the behaviour of theparametersinvolvedinthedynamicresponseofflexibleriserswithaninternalslugflow,suchasdisplacements,top tension, and bending moment, when any of the parameters characterizing the slug flow is modified. Toaccomplishthisgoal,acomputationaltoolisdeveloped.Thespatialdiscretizationoftheriserisperformedusingbeam finite elements and the corotational approach is used for the two-dimensional formulation of the beamelement. The beam elements have a linear elastic behaviour and they are submitted to large displacements,althoughwithsmalldeformations.Theincremental-iterativeNewton-Raphsonschemeforfollowerloadsisusedto solve the equilibrium equations in dynamic analysis. Time domain numerical integration is performed usingtheconstantaverageaccelerationmethod.Theslugflowisviewedasasingle-phasefluidwithvariabledensity,which is modelled by a periodic function. The numerical results show good coherence when compared to theexperimental ones, qualifying the computational tool to conduct parametric studies about dynamic of flexiblemarine risers with an internal slug flow.
%@area ETES
%@electronicmailaddress j.melendez.v@hotmail.com
%@electronicmailaddress juan.avila@ufabc.edu.br
%@documentstage not transferred
%@group CMC-ETES-SESPG-INPE-MCTIC-GOV-BR
%@usergroup simone
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade Federal do ABC (UFABC)
%@versiontype publisher
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@doi 10.1016/j.oceaneng.2019.01.031
%2 sid.inpe.br/mtc-m21c/2019/02.19.13.00.42