Paper Title
Numerical Analysis Of A Throttle Valve: Unlined V/S Lined Valve Seat

Abstract
Throttle valves used in fluid power systems are often damaged due to frequent cavitations’ and erosion occurrences. This paper presents a numerical analysis of a 3-D bio-inspired (squid) throttle valve with an improved flow pattern using the numerical tool, ANSYS Workbench 17.0. Three models subjected to incompressible turbulent flows were simulated using the computational fluid dynamics (CFD) Fluent 17.0 code: Model 1 was the valve seat only whereas models 2 and 3 were lined with 3 mm thick natural rubber and a rubber-like material (PTFE), respectively. The anti-cavitation approach of using linings was investigated through comparisons in terms of the vapor fraction, the vortices, the pressure and velocity distribution, and the pressure coefficient, which established the natural rubber lined model as the ideal choice. However, further investigations are required to reduce cavitations. Keywords - Anti-cavitation, Bio-inspired throttle valve, CFD, Natural Rubber, PTFE.