NUMERICAL STUDY OF ROTOR CLEARANCE AND OIL INJECTION FLOW EFFECTS IN A SCREW COMPRESSOR

M. Kim; G. Son

doi:10.6112/kscfe.2025.30.2.108

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2025 Vol.30, Issue 2 Preview Page Next Page

Original Article

NUMERICAL STUDY OF ROTOR CLEARANCE AND OIL INJECTION FLOW EFFECTS IN A SCREW COMPRESSOR 로터 간격 및 오일 유량을 고려한 스크류 압축기의 수치적 연구

30 June 2025. pp. 108-120

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Abstract

This study numerically investigates the effects of rotor clearance and oil injection on the thermal-fluid characteristics of screw compressors using SimericsMP+. The oil flow within the compressor is modeled using the Volume-of-Fluid (VOF) method, treating air as an ideal gas and oil as an incompressible fluid. Simulations are conducted with a deforming grid and standard k-ε turbulence model. The computational model is validated against reference data obtained under oil-free condition. Subsequently, a parametric study on rotor clearance and oil injection rate is conducted to analyze their influence on compressor performance and to identify optimal operating conditions.

Keywords

스크류 압축기(Screw compressor)

로터 간극(Interlobe clearance)

오일 주입(Oil injection)

체적 효율(Volumetric efficiency)

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Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 30
No :2
Pages :108-120
Received Date : 2025-04-21
Revised Date : 2025-05-14
Accepted Date : 2025-05-30
DOI :https://doi.org/10.6112/kscfe.2025.30.2.108

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

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