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What does the R in the simpler algorithm stand for?
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Incompressible Flows – SIMPLER Algorithm”. 1. Explanation: The SIMPLER algorithm stands for SIMPLE – Revised algorithm. This was introduced by Patankar who had worked for building the SIMPLE algorithm also.
What does the C in Simplec algorithm?
What does the ‘C’ in SIMPLEC algorithm? Explanation: SIMPLEC expands as SIMPLE-Consistent algorithm.
Which is better staggered grid or collocated grid?
However on collocated grids, all parameters are defined at the same location at the central nodes. The advantage of staggered grids is more accurate pressure gradient estimation. In collocated grids method, solving the equations is simpler as all parameters can be stored at the same location.
Why are staggered grids used in the FVM?
A staggered grid is a setting for the spatial discretisation, in which the variables are not defined at the same position as in case of the collocated grid. Since I work on the FVM for the incompressible Navier-Stokes equations using staggered grids, so I’ll explain using the system of equations.
Why is a staggered grid used for finite volume?
The natural choice of the grid for a finite volume method is a staggered grid. It is called staggered because the velocity components are staggered with respect to the pressure, which is placed in the center of the cells. The staggered grid ensures that the resulting discrete system will not be singular.
How are primitive variables defined in a staggered grid?
On a staggered grid these primitive variables are all defined at different location, with pressure p at the cell centre and the velocity components at the centre of the cell faces. This staggering of the variables, results in different control volumes for the u- and v- momentum equations and the continuity equation.