in 2014, UK-based PDM Analysis launched its SCORG product, which specializes in helical gear profile analysis, thermodynamic calculations, and CFD rotor structure mesh generation. By integrating 3D and 1D simulation software, it enables engineers to efficiently perform fluid dynamics and thermodynamic analyses for screw machinery, facilitating rapid performance optimization. The rotor features a spiral gear configuration with unique contours that allow male and female rotors to mesh, creating a sealed space between rotor and housing. The flow field in twin-screw systems comprises three distinct zones: a stationary low-pressure area, a deformation compression zone, and a stationary high-pressure area. Fluid flows from the suction zone through the compression zone to the discharge zone, with leakage occurring through inter-screw gaps (rotor clearance, radial clearance, and end clearance) into the low-pressure area. To comprehensively analyze the entire operational cycle of screw machinery, all leakage flows must be accounted for.
Features Rotor contour design Import and manipulate the rotor profile from the point coordinate file, scan the rotor geometry, and generate it in SCORG or extract it from CAD. geometrical analysis Calculate and graph the volume of the working chamber, the area of the inlet, outlet and other ports, and the leakage area between the working chamber and adjacent chambers. 3D mesh generation The computational numerical grid for the moving rotor domain and fixed inlet and outlet domains is provided for analysis by commercial CFD solvers. analyse Multibar thermodynamics Geometric analysis of flow characteristics and preliminary performance analysis using a multi-domain chamber model. The thermodynamic results can serve as initial or boundary conditions for CFD, finite element method (FEM) structural analysis, or fluid-structure interaction (FSI) simulations. CFD performance calculation Commercial CFD codes such as Simerics MP+, ANSYS CFX, ANSYS FORTE, ANSYS FLUENT, STAR-CCM+ and open CFD codes such as OpenFOAM are used to achieve accurate CFD performance prediction. optimize systems analysis The GT-Suite system model can be used for design optimization using direct coupling with the GT-Suite thermodynamic solver All SCORG parameters can be passed to the optimization algorithm for analysis The optimized rotor, housing and port CAD can be exported as STEP, IGES or STL.