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Butterfly Valve

SCORG - (Screw Compressor Rotor Grid Generation)



SCORG is the software for the design and analysis of Screw Compressors, Pumps and Motors. It offers a unique capability to generate numerical meshes for Computational Fluid Dynamics (CFD). It also allows fast and reliable performance calculation using Thermodynamic Chamber Models (TCM). It is designed to minimise efforts and maximise efficiency of the design process by enabling geometry analysis, preliminary thermodynamic evaluation and grid generation of the large number of positive displacement rotary machines with multiple rotor arrangements.

SCORG has very friendly and easy to use Graphical User Interface (GUI). Using that interface the user can easily import existing geometry of the rotors from data point files obtained analytically, numerically, by measurement or from a CAD system. It allows easy manipulation, scaling and modification of such rotors. With the module for design of the rotor profile customers have an option to provide their own designs of rotors. The GUI is capable of presenting resulting files in a number of graphical and textual formats.


CFD Grid Generation


SCORG can be used for design, grid generation and analysis of a variety of screw machines including:



SCORG generates numerical mesh and pre-processing scripts for direct link and easy connection with commercial CFD solvers and Engineering software such as PumpLinx®, ANSYS CFX®and STAR CCM+®.


Grid Generation















Rotor Geometry and Thermodynamic Chamber Model


SCORG allows full analysis of geometric features of the machines and preliminary thermodynamic analysis of the performance of such machines. Thermodynamic results are later used as initial conditions for CFD, Structural analysis by use of Finite Element Methods (FEM) or Fluid Solid Interaction (FSI).




Images Courtesy of PDM Analysis Ltd.


Leakage Paths CFD Results Visualization Twin Rotor Mesh Thermodynamic Chamber Models