This is supplementary text of the paper titled "Uncertainty Quantification of the Impact of Peripheral Arterial Disease on Abdominal Aortic Aneurysms in Blood Flow Simulations" by Sharp C. Y. Lo, Jon W. S. McCullough, Xiao Xue, and Peter V. Coveney (2024). The corresponding author is Prof. Peter V. Coveney (p.v.coveney@ucl.ac.uk).This document supports the analysis given in the main text. The content includes the calculations of the boundary velocity ratio, the orientation of the flow velocity within the aneurysm, a grid refinement study, and the calculations of the wall shear stress vector.