公开(公告)号：US20240242010A1

公开(公告)日：2024-07-18

申请号：US18563224

申请日：2022-06-09

Applicant: LEDAFLOW TECHNOLOGIES DA

Inventor： Jørn Kjølaas ,  Ivar Eskerud Smith ,  Jonathan Nees

IPC: G06F30/28 ,  G06F30/23 ,  G06F30/27 ,  G06F111/10 ,  G06F113/14

CPC classification number: G06F30/28 ,  G06F30/23 ,  G06F30/27 ,  G06F2111/10 ,  G06F2113/14

Abstract: This invention relates to a computer-implemented method for predicting fluid behaviour in pipeline-based transport systems for transport of multiphase flows involving slug flows which forces one-dimensional CFD models to predict a Taylor bubble velocity being equal to a predetermined Taylor bubble velocity known to be realistic. The enforcement of the 1D CFD model to arrive at the predetermined Taylor bubble velocity is obtained by introducing a force term in the momentum equation for the gas phase at and near the slug-tail top and which is proportional to the difference between the Taylor bubble velocity predicted by the CFD model and the predetermined Taylor bubble velocity. The invention further relates to an autonomous system applying the computer-implemented method.

公开(公告)号：US20200372195A1

公开(公告)日：2020-11-26

申请号：US16881817

申请日：2020-05-22

Applicant: LEDAFLOW TECHNOLOGIES DA

Inventor： Jørn Kjølaas

IPC: G06F30/28 ,  G06F30/13

Abstract: The invention relates to a computer implemented method and tool for determining pressure-drop in multiphase pipeline flow where the effective surface roughness, keff, of liquid film coated sections of the inner pipeline wall is assumed to be equal to the maximum hydraulic roughness, ksmax. The maximum hydraulic roughness is further assumed to be proportional to a maximum stable droplet size, ddropletmax, i.e.: keff=ksmax=K·ddropletmax, where K is a correlation coefficient. The invention further relates to applying the computer implemented method for designing a pipeline-based fluid transport system for transport of multiphase fluids.

公开(公告)号：US11709980B2

公开(公告)日：2023-07-25

申请号：US16881817

申请日：2020-05-22

Applicant: LEDAFLOW TECHNOLOGIES DA

Inventor： Jørn Kjølaas

IPC: G06F30/28 ,  G06F30/13 ,  G06F113/14 ,  G06F113/08 ,  G06F111/10

CPC classification number: G06F30/28 ,  G06F30/13 ,  G06F2111/10 ,  G06F2113/08 ,  G06F2113/14

Abstract: The invention relates to a computer implemented method and tool for determining pressure-drop in multiphase pipeline flow where the effective surface roughness, keff, of liquid film coated sections of the inner pipeline wall is assumed to be equal to the maximum hydraulic roughness, ksmax. The maximum hydraulic roughness is further assumed to be proportional to a maximum stable droplet size, ddropletmax, i.e.: keff=ksmax=K·ddropletmax, where K is a correlation coefficient. The invention further relates to applying the computer implemented method for designing a pipeline-based fluid transport system for transport of multiphase fluids.