solidworks flow simulation isolated system fan

Pressure Drop vs Volume Flow Rate for the Filter Assembly Summary Hence, for this study we ran 9 simulations in the range 0.01 - 0.1 m 3/s. Recall our previous CFD simulation for the cyclone revealed that the operating condition for the complete system should correspond to a flow rate of less than 0.065 m 3/s. However, the range over which the permeability changes for the flow rate we are considering is small, so for this study we will assume it is constant. Permeability is a function of volume flow rate and pressure drop, so ideally it needs to be modified for each flow condition. Assuming Darcy's Law and assuming the filters conform to the HEPA standard we find that the permeability is 3.79 x 10 -5 m 2. In the complete system the manifold outlet is coupled directly to the inlet of the blower, hence its off-center position.ĬFD Filter Assembly Flow Domain Performance Testįor porous media we need to define the permeability of the filters in our model. Once the flow leaves the two filter cores it recombines into a single outlet through a manifold. The geometry was created from scratch using Matthias' plans.ĭust Collector Filter AssemblySketchUp Assembly Model The twin filters were modeled as porous media using a multi-volume flow domain where the filters are represented as separate volumes.

The filters remove fine particles that escape the cyclone, leaving the air to pass through the blower and exit to the atmosphere.ĬFD Simulation of a Filter Assembly for a Dust Collector 3D Model Construction After using Computational Fluid Dynamics (CFD) to simulate the blower and cyclone in Matthias Wandel's 'Small Dust Collector' we next turn our attention to the last remaining major component - the twin filter assembly.

Solidworks flow simulation isolated system fan