Numerical model of predicting surge boundaries in high-speed centrifugal compressors

M Zhang, W Wu, C Zhou - Aerospace Science and Technology, 2023 - Elsevier
A numerical model of the whole compression system is established in this paper. The
introduction of the Laval nozzle and opening boundary methods adaptively simulate the …

Low-frequency fluctuation propagation of rotating stall in the centrifugal compressor and pipe system

C Jia, G Qin, Y Wang, Q Cui - Physics of Fluids, 2023 - pubs.aip.org
The characteristic signal judgment of rotating stall in a centrifugal compressor is necessary
to avoid the compressor becoming instability in operation. This study investigates rotating …

Experimental Research on Flow Instability Mechanism of a Highly Loaded Axial Compressor

S Huang, G Han, C Yang - … of Engineering for …, 2023 - asmedigitalcollection.asme.org
The performance and stable operating range of compressors are critical for the efficient
operation of various turbomachinery systems. To reveal the flow instability mechanism of a …

Numerical investigation of the effects of system volume and average mass flow on the surge characteristics of an axial compressor

M Wang, H Sun, Z Wang, Y Wang, F Magagnato… - Aerospace Science and …, 2020 - Elsevier
The objective of this work is to evaluate the surge characteristics of an axial compressor
operating under surge conditions, by using a hybrid BDF/harmonic balance method. During …

Numerical Investigation of Flow Evolution in Centrifugal Compressors During Surge

M Zhang, W Wu, C Zhou - Journal of …, 2024 - asmedigitalcollection.asme.org
Surge can lead to violent flow fluctuations in the compression system and damage to the
blade structures. In this paper, a fully three-dimensional numerical model of the centrifugal …

Simulation and validation of instability transient process in multistage high-speed axial compressor based on the body-force model

J Ji, R Cheng, J Hu, Z Wang, S Ma - Physics of Fluids, 2024 - pubs.aip.org
In this paper, a method for simulating the instability transient process of the axial
compression system based on the body-force model is developed, and a corresponding …