<div>iSLUG is an in-house numerical tool for predicting steady-state slug liquid-gas flows traveling through a pipeline/riser with variable inclination. This tool has been developed by the team at Newcastle University as part of the MUFFINS project funded by UKRI EPSRC.</div><div><br></div><div>iSLUG is an executable file. User should verify that at least Version 9.5 (R2018b) of the MATLAB Runtime is installed. If not, user may run the file 'iSLUG_Installer_Web' for downloading online and installing the Windows version of the MATLAB runtime. During the installation, it is recommended to create a shortcut for running iSLUG. Any figure created by iSLUG will be saved in a folder where this shortcut is created and directly run.<br></div><br>