Computational Fluid Dynamics Simulation on Blood Velocity and Vorticity of Venous Valve Behaviour

In this work, a computational fluid dynamics (CFD) is used to analyze the effect of different opening between two valves of a normal popliteal vein. This study was focusing on the velocity and also vorticity of blood along the popliteal vein distribution. Based on the observation and analysis of the data, the different size of orifice between the first valve and second valve influencing the velocity and vorticity of the blood flow. The rotational motion of blood particle at the same spot will increasing the probability of blood accumulating which helping in development of thrombus. The effect of the irregularities in the blood flow will cause valve insufficiency that will lead to various disease related to venous vessel such as heart attack, deep vein thrombosis (DVT), pulmonary embolism (PE) and the worst is death. A series of experiment has been conducted by changing the size of valve orifice for the first and second valve along the vein distribution. The result of the CFD simulation shows a significant result of blood flow in term of velocity and vorticity.