The Navier-Stokes equations are a set of partial differential equations that describe the motion of incompressible, viscous, and Newtonian fluids.

The Finite Volume Method (FVM) is a widely used numerical method for solving the Navier-Stokes equations due to its simplicity, robustness, and ability to handle complex geometries.

Turbulence models are used in CFD simulations to predict the behavior of turbulent flows, which are characterized by chaotic and unpredictable fluctuations.

The Dirichlet boundary condition is commonly used to represent a solid wall in CFD simulations, where the velocity of the fluid is set to zero at the wall.

The mesh is used to discretize the computational domain into small elements, which allows the governing equations to be solved numerically.

ANSYS Fluent is a widely used commercial CFD software that offers a comprehensive set of features for simulating fluid flows.

High Reynolds number flows are characterized by complex and turbulent behavior, which requires a large number of mesh elements and computational resources to accurately simulate.

The Arbitrary Lagrangian-Eulerian (ALE) method is a CFD technique that allows for the simulation of flows with moving boundaries by combining the advantages of both Lagrangian and Eulerian methods.

The pre-processor is used to generate the mesh, define the boundary conditions, and set up the simulation parameters.

The pressure-based method is commonly used to simulate incompressible flows, where the pressure is solved as a primary variable.

The post-processor is used to visualize the flow field, extract quantitative data from the simulation results, and generate reports and presentations.

The compressible flow solver is commonly used to simulate flows with large density variations, where the density is treated as a variable.

The turbulence model is used to predict the behavior of turbulent eddies, which are small-scale, chaotic structures that characterize turbulent flows.

The reacting flow solver is commonly used to simulate flows with chemical reactions, where the chemical species and their reactions are taken into account.

The convergence criterion is used to determine when the solution has reached a steady state, where the flow properties no longer change significantly with time.