DESIGN METHOD OF RISER SIZE AND OPTIMAL RISER DESIGN METHOD USING THEREOF

摘要

A method for setting a size of a riser and an optimal riser setting method using the same are provided to precisely set a position/size of the riser by using a consistent way without depending on experience of a worker and consistently determine whether the position/size of the riser is properly set by using a simulation result. A shrinking hole is analyzed by performing computer simulation in a non-riser state(S110). In case that the shrinking hole is generated based on an analysis result, the position of the riser is selected(S120). The size of the riser to be installed is set(S130). The shrinking hole generated from the computer simulation including the set position/size of the riser is analyzed(S170). It is checked whether the analyzed shrinking hole exceeds a specified volume or not(S180).