In this paper, the flow of detergent water (1% volume fraction) from the cartridge to unit cleaner is simulated through computation fluid dynamic (CFD) analysis. The 3D models of the cleaner unit are used to design with Unigraphics – NX CAD modelling software. Figure 2a shows the 3D model of hexagonal cartridge designed to clean the trimmer wash zone. The design models are stored in the form of ‘ug.prt’ format for easy transfer. Further the designed models are transferred to LSDyna software for meshing (discretization) of 3D model. In continuation to the demonstrating and meshing, the files are StarCCM+ software for computation fluid dynamic analysis. The data storage for meshing and analysis are in the form of parasolid to access easy in the simulation platform. From the analysis, the vector analysis and pressure ranges represent the flow direction of research proposed in product design analysis.
The simulation is performed as a direct engineering analyser which is used to perform turbulence model for incompressible fluids. The continuity equation for the pump flow control is composed as:
and is the relative velocity of the fluid which is commonly followed equation for pump flow analysis in CFD.
In some cases, the three – dimensional flow analysis are made Naviers – Stoke equation as given below :
which denotes density of the fluid (ρ); pressure under static condition (P); shear stress related to fluid viscosity and other additional force components . However, in this research, there are no mathematical or numerical equations to consider. The StarCCM+ is a reasonable package to produce better results on fluid dynamics. Table 2 illustrates the boundary conditions used for CFD analysis of unit clear. Similar results have been used for different cleaning system . Most of the CFD analyses are made for types of pumps with different fluid using conventional fluent software [10, 11]. There are many bottleneck studies on development of product for commercial applications [12 – 14].
Explicitly the pump fluid is maintained with a constant density with steady state flow energy. In actual condition, the unit cleaner is used to pump the water from cartridge to cleaner wash out region and back to cartridge region is about 3.0s of time. On continuous pumping the amount water flow varies and the level of water in the cartridge will be in flotation. To compare the fluid dynamics throughout the system, the CFD analysis has been performed for a time band of 5s using the StarCCM+ software.
With the above interaction condition, the water stream from the cartridge unit to clean out district is reproduced and the equivalent got back to cartridge locale is recognized. The investigation is developed regarding velocity vector and pressure component part for both two dimensional and three – dimensional examination.