This video presents the pressure-based and density-based solvers in CFD.
Both the pressure-based and density-based solvers are used to solve the mass and momentum conservation equations, which describe the fluid flows.
The density-based solvers are mainly used for compressible flows, which are encountered at high speeds. These solvers are also referred to as the coupled solvers.
However, the pressure-based solvers are historically developed for low-speed incompressible flows, where the density is assumed to be a constant value. The pressure-based solvers are also referred to as the segregated solvers.
Video Outline:
0:00 - Pressure-Based and Density-Based Solvers in CFD
1:43 - Pressure-based solvers
6:18 - SIMPLE algorithm
10:56 - Weakness of the SIMPLE algorithm
12:01 - SIMPLER Algorithm
14:32 - SIMPLE-C Algorithm
15:33 - PISO Algorithm
20:20 - Density-based solvers
25:13 - Segregated Solver vs. Coupled Solver