Hemodynamic Study in Cavopulmonary Vascular System by Characteristic Based Split with Artificial Compressibility Scheme
نویسندگان
چکیده
An Artificial Compressibility Characteristic Based Split Scheme (CBS-AC) employed in FEM is used to predict the flow pattern in Cavopulmonary vascular system. Such type of flow is very complex due to varying nature of flow through SVC (Super Vena Cava) and IVC (Inferior Vena Cava), confluence at T-junction, recirculation etc,. In this work, numerical simulations are performed to extend the applicability of the present scheme and to understand initially the flow pattern in the TCPC (Total Cavopulmonary connection) following Fontan surgical procedure. It is further intended to estimate energy losses and evaluate hemodynamic stresses. The basic code is validated against benchmark data and then applied to study the present problem. The results are compared with published results on a similar configuration.
منابع مشابه
روش بالادست چندبعدی براساس مشخصهها برای تحلیل جریان تراکم ناپذیر داخل حفره
In this research, a new multidimensional characteristic based upwind scheme for the solution of incompressible Navier-Stokes equations is presented. The incompressible flow equations have been coupled each other by the aid of artificial compressibility method. Unlike to the traditional characteristic based (CB) schemes, the present scheme is genuinely multidimensional in that the local charact...
متن کاملIncompressible laminar flow computations by an upwind least-squares meshless method
In this paper, the laminar incompressible flow equations are solved by an upwind least-squares meshless method. Due to the difficulties in generating quality meshes, particularly in complex geometries, a meshless method is increasingly used as a new numerical tool. The meshless methods only use clouds of nodes to influence the domain of every node. Thus, they do not require the nodes to be conn...
متن کاملThree-dimensional characteristic approach for incompressible thermo-flows and influence of artificial compressibility parameter
In this paper the characteristics of unsteady three-dimensional incompressible flows with heat transfer are obtained along with artificial compressibility of Chorin. At first, compatibility equations and pseudo characteristics for three-dimensional flows are derived from five governing equations (continuity equation, Momentum equations in three directions, and energy equation) and then results ...
متن کاملA Characteristic-based Solution of Forced and Free Convection in Closed Domains with Emphasis on Various Fluids
In this paper, forced and free convection in the cavity is simulated numerically with complex boundary conditions. Temperature changes sinusoidally at the upper and right walls and the temperature of the other walls is kept at zero. The effects of Prandtl and Grashof numbers variations on flow patterns are surveyed. A wide range of materials, e.g. molten metals, gases, water, and coolant liquid...
متن کاملNumerical Simulation of Non-Newtonian Inelastic Flows in Channel based on Artificial Compressibility Method
In this study, inelastic constitutive modelling is considered for the simulation of shear-thinning fluids through a circular channel. Numerical solutions are presented for power-law inelastic model, considering axisymmetric Poiseuille flow through a channel. The numerical simulation of such fluid is performed by using the Galerkin finite element approach based on artificial compression method (...
متن کامل