Discretization schemes

1. What is a discretization scheme?
2. What are discretization methods?
3. What are schemes in CFD?
4. What does Discretise mean?

What is a discretization scheme?

A discretization scheme is called consistent, if the discretized equations converge to the given differential equations for both the time step and grid size tending to zero. A consistent scheme gives us the security that we really solve the governing equations and nothing else.

What are discretization methods?

Discretization methods are used to chop a continuous function (i.e., the real solution to a system of differential equations in CFD) into a discrete function, where the solution values are defined at each point in space and time. Discretization simply refers to the spacing between each point in your solution space.

What are schemes in CFD?

CFD Numerics: Numerical Schemes. Numerical schemes calculate the values for different terms like derivatives, e.g. gradient and interpolations of values from cell centers to nodes. A wide range of numerical schemes are available that provide flexibility and freedom.

What does Discretise mean?

distinct, separate, discrete mean not being each and every one the same. distinct indicates that something is distinguished by the mind or eye as being apart or different from others.