منابع مشابه
CFD Analysis of Oil Flooded Twin Screw Compressors
Modelling of screw compressors using Computational Fluid Dynamics (CFD) offers better insight into the working chamber of twin screw machines when compared with chamber models. As shown by authors in earlier publications, CFD models predict performance of dry gas and refrigeration compressors fairly accurately. However numerical flow models used for modelling of oil flooded twin screw compresso...
متن کاملCFD Studies of Flow in Screw and Scroll Compressors
An analysis of flow in rotary positive displacement machines has been carried out using a standard CFD package by separating out the motions of the fluid and the instantaneous volume in which it is contained. Examples are given of both twin screw and scroll compressors. Pressure-volume diagrams obtained from such analyses are compared with experimental results and good agreement shown. Longer t...
متن کاملOptimisation of Screw Compressors
Increasing demands for more efficient screw compressors require that compressor designs are tailored upon their duty, capacity and manufacturing capability. A suitable procedure for optimisation of the screw compressor shape, size, dimension and operating parameters is described here, which results in the most appropriate design for a given compressor application and fluid. It is based on a rac...
متن کاملBoundary Adaptation in Grid Generation for CFD Analysis of Screw Compressors
This paper describes some aspects of an advanced grid generation method used, with Computational Fluid Dynamics (CFD) procedures, to model three-dimensional flow through screw compressors. The increased accuracy of the flow predictions thus derived, enable such machines to be designed with improved performance and for lower development costs. To achieve this, a wholly original boundary adaptati...
متن کاملCFD for Positive Displacement Compressors
CFD has become a buzz word in all sectors and many industries, while the positive displacement compressor industries are rather slow in embracing it. The paper examines whether it is because positive displacement compressors were considered as basically thermodynamic devices or due to the inherent challenges for application. The paper discusses the need for CFD and it’s current status in genera...
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ژورنال
عنوان ژورنال: Engineering Applications of Computational Fluid Mechanics
سال: 2007
ISSN: 1994-2060,1997-003X
DOI: 10.1080/19942060.2007.11015185