An improved prediction model for corner stall in axial compressors with dihedral effect
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2019.12.031
Abstract: Abstract Corner stall predictions are important and difficult in axial compressors. However, all of the prediction models have proved to be ineffective for advanced compressor blades, which tend to use the combined sweep and dihedral.… read more here.
Keywords: axial compressors; improved prediction; model; corner stall ... See more keywords
Enhancement of aerodynamic performance of axial compressors utilizing natural aspiration through optimized casing circumferential slot
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-64659-4
Abstract: This paper presents results of aerodynamic enhancement of axial compressors utilizing optimum natural aspiration through a circumferential slot made within the casing wall upstream the rotor blades row. The method of investigation is based on… read more here.
Keywords: compressors utilizing; natural aspiration; axial compressors; circumferential slot ... See more keywords
Origin of self-induced unsteadiness in axial compressors
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DOI: 10.1063/5.0212845
Abstract: This study investigated the instability mechanisms within the blade-tip region of a transonic compressor. The variations in these mechanisms were explored under different operating conditions using methods such as spectral analysis and vortex identification. The… read more here.
Keywords: axial compressors; excited unsteadiness; self excited; unsteadiness axial ... See more keywords
Approximate entropy identification of flow unsteadiness and surge precursor in both subsonic centrifugal and axial compressors
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DOI: 10.1063/5.0251040
Abstract: Surge poses a significant challenge to the safe operation of compressors. Identifying surge precursors is a valuable approach for surge warning and has been extensively investigated, though it remains unresolved. This paper experimentally examines the… read more here.
Keywords: surge; flow unsteadiness; axial compressors; approximate entropy ... See more keywords
AI-Based Detection of Surge and Rotating Stall in Axial Compressors via Dynamic Model Parameter Estimation
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DOI: 10.3390/fluids9060134
Abstract: Compressors are an essential component of aircraft engines. Their design and operation must be extremely reliable as engine safety and performance depend greatly on these elements. Axial compressors exhibit instabilities, such as surge or rotating… read more here.
Keywords: system; axial compressors; model; surge rotating ... See more keywords