Julian Turnbull is a Principal Hydraulic Modeller with experience in treatment plant hydraulics, surge analysis, CFD modelling, pump station design, and transient pressure surges. Previous roles include Hydraulic Modeller at Black & Veatch, Lead Modeller at Anglian Water Services, and Post-Doctoral Position at Cranfield University. Holds a PhD in Flow Modelling, Turbulence, and Numerical Methods from Cranfield University.