Table of Contents
Numerical Simulation of Transitional and Turbulent Cardiovascular Flows
Outline
Turbulence in the Large Blood Vessels
Effect of Pulsatility on Turbulence
Importance of Turbulence in Blood Flow
Turbulence in Constricted Arteries
Arterial Stenosis
Phonoangiography
Phonoangiography
Objectives
Simulation approach?
Direct Numerical Simulation (DNS) or Large-Eddy Simulation (LES) ?
LES
Arterial Stenosis Model
Governing Equations
Dynamic Model
Spatial and Temporal Discretization
Grid Topology
Numerical Dissipation and LES
Energy Conservative Scheme
Pulsatile Flow
Simulation Methodology & Resources
Spanwise Averaged ?z
Animation
Reynolds Stresses and SGS Viscosity
Wall Stresses
Velocity probes
Comparison with Experiments of Khalifa & Giddens (1981)
Wall Pressure Fluctuations
Shear Layer Vortex Shedding from Cylinders
A New Approach to Phonoangiography?
What about the Break Frequency?
Animations of all cases
The Quasi-Steady Hypothesis
Steady Inflow Simulations
Turbulence Generation
Steady Inflow Simulations
Steady Inflow Simulations
Steady Inflow Simulations
Summary
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