High-resolution simulations of gas-liquid Couette-type sealing gap flows

The two-phase flow in sealing gaps of twin-screw compressors is investigated using highly resolved coupled multiphase simulations. Oil-injected rotary-type positive displacement compressors (RPDC) such as twin-screw machines are used for the compression of refrigerants in HVAC (Heating, Ventilation,...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2024-12, Vol.1322 (1), p.012004
Main Authors: Vorspohl, J, Burchardt, L, Meinke, M, Brümmer, A, Schröder, W
Format: Article
Language:English
Subjects:
Aerodynamics
Air conditioning
Algorithms
End plates
Expanders
Fluid dynamics
Fluid flow
High resolution
HVAC equipment
Kinematics
Momentum
Multiphase flow
Numerical methods
Reynolds number
Rotary screw compressors
Rotating fluids
Rotors
Screw machines
Sealing
Two phase flow
Vapor phases
Working fluids
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Summary:The two-phase flow in sealing gaps of twin-screw compressors is investigated using highly resolved coupled multiphase simulations. Oil-injected rotary-type positive displacement compressors (RPDC) such as twin-screw machines are used for the compression of refrigerants in HVAC (Heating, Ventilation, and Air Conditioning) systems. The efficiency of such machines is largely determined by the inevitable two-phase surge and gap flows. The simulation of flows in such compressors is still a challenge due to the complexity of the two-phase flow in the narrow gaps (
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1322/1/012004