Pumpsim™ can simulate a variety of fluids, newtonian (water), non newtonian (cement) and compressible fluids such as air. It is possible to have several fluids in one model but two consecutive pipes need to have the same fluid.
Newtonian fluid
Newtonian fluids are defined by their density and viscosity. Pumpsim™ is pre-configured with some common fluids by default but more fluids can be added in the presets.
A slurry calculator is also available to simulate Newtonian slurry. First select the Liquid Data, either from the database or enter some custom values directly. Then enter the Solid data characteristics. The calculated density and viscosity results will be entered in the table by clicking Apply.
Non Newtonian fluid
Non newtonian fluids are fluids where the viscosity varies with the applied stress or force. Two types of non Newtonian fluids are available: Bingham plastic and Power law.
- Bingham plastic fluids are defined by their density, plastic viscosity and yield stress. Cement and paste fill are common Bingham plastic fluids.
- Power law fluids are defined by their density, apparent viscosity and flow behaviour index. Glycerine and oobleck are common power law fluids.
Compressible fluid (gas)
As gas density is variable depending on the pressure, deferent data needs to be entered to calculate the gas density during the simulation using the ideal gas law: the specific gas constant. The specific heat will be used when we include heat in the simulation.