Study on the water ingestion performance of compressor with inlet particle separator

Mingcong Luo; Yonghao Yu; Aocheng Liu; Shilin Yan

doi:10.1515/tjj-2023-0006

Article

Study on the water ingestion performance of compressor with inlet particle separator

Mingcong Luo , Yonghao Yu , Aocheng Liu and Shilin Yan

Published/Copyright: June 19, 2023

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From the journal International Journal of Turbo & Jet-Engines Volume 41 Issue 2

Abstract

For an aero turbo-shaft engine, rain water enters the intake protection device and the morphology of water droplets after hitting the wall will affect the internal flow of the compressor. In this paper, Sommerfeld number was used to determine the shape of water droplets after they hit the wall. The flow field and characteristics of the compressor with inlet particle separator under different water ingestion conditions were studied with considering the impact of water film and droplets splashing near the wall. The results show that the entry of water droplets deteriorates the internal flow field of the compression component, and the water film affects the flow state of the airflow near the wall. Compared to the effect of the splashing factor, the viscous resistance effect of water film near the wall on the airflow and boundary layer can cause a significant reduction in the characteristics and stability of the compressor.

Keywords: compressor characteristic; inlet particle separator; water film; water ingestion

Corresponding author: Shilin Yan, College of Power and Energy Engineering, Harbin Engineering University, Harbin, China, E-mail: yanshilin@hrbeu.edu.cn

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: Grant No. 52006042

Funding source: HeiLongJiang Postdoctoral Fund

Award Identifier / Grant number: Grant No. LBH-Z20126

Funding source: National Science and Technology Major Project

Award Identifier / Grant number: 2017-I-0009-0010

Funding source: China Scholarship Council

Award Identifier / Grant number: No. 202006685005

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This paper is funded by National Natural Science Foundation of China (Grant No. 52006042); HeiLongJiang Postdoctoral Fund (Grant No. LBH-Z20126); National Science and Technology Major Project (2017-I-0009-0010) and China Scholarship Council (No. 202006685005).
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

Nomenclature (SI units)

K: Sommerfeld number
We _p: Weber number of the droplet
Re _p: Reynolds number of the droplet
h: height of any point in the water film (mm)
k _s: height of sand roughness (mm)
M _l: liquid water mass flow (kg/s)
R–R: Rosin–Rammler
α: absolute angle (°)
σ _p: surface tension coefficient of water droplets (N/m)
δ: water film thickness (mm)
v _δ: water film velocity (m/s)
τ _a: air flow shear force (N/m²)
τ _p: water droplet shear force (N/m²)
μ: dynamic viscosity coefficient (Pa s)
ρ: liquid water density (kg/m³)
SM: surge margin
π: total pressure ratio

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Received: 2023-01-24

Accepted: 2023-06-05

Published Online: 2023-06-19

Published in Print: 2024-05-27

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Articles in the same Issue

https://doi.org/10.1515/tjj-2023-0006

Keywords for this article

compressor characteristic; inlet particle separator; water film; water ingestion