DYNAMIC BEHAVIOR OF INVERTED CATENARY COLD WATER PIPELINES FOR SEA WATER DESALINATION PROJECT

Title: “DYNAMIC BEHAVIOR OF INVERTED CATENARY COLD WATER PIPELINES FOR SEA WATER DESALINATION PROJECT”
Date/Time: 26-02-2018 3:00 pm
Venue: DOE SEMINAR HALL
Speaker: MR. R. SARAVANAN, OE12D020

Guide:PROF. SK BHATTACHARYA

Abstract:
Unburied flexible pipelines are deployed for conveying the coldwater for desalination process in coral island. Generally High density polyethylene material is used as coldwater pipeline, where the pipelines could not be buried in coral seabed considering its buoyancy in seawater and simplistic in deployment configuration. However such pipelines are subjected to oscillations, due to current in a shallow water region. Hence it becomes essential to study about the dynamic behavior of such flexible pipeline. Numerical analysis has been carried out using ORCAFLEX and Shear7 software to ascertain the vortex induced oscillations and front end tension. Experimental studies have been carried out in 2m current flume and the magnitude, period of oscillations and front end tension are recorded and processed. Numerical analysis has been carried out an d compared with experimental results. Field studies have been carried out in the coastal area of the coral island to ascertain the magnitude and direction of the current during March 2017. The observed data are used in the Numerical analysis to confirm the results.