PDF
Full
Outline
Based on the linear stability analysis method，considering the liquid viscosity，the coaxial rotating motion and compressibility of the surrounding airflow，a mathematical model describing the viscous liquid jet in the coaxial rotating compressible airflow was established and verified，and the effects of the dimensionless rotation intensity of the airflow and the physical properties of the fluid on the unstable form of the liquid jet were studied. The results show that when the rotation speed of the surrounding airflow is small，it promotes the jet stability，continues to increase the dimensionless rotation intensity of the airflow，and begins to promote the splitting of the jet. With the increase of airflow rotation intensity，the jet disturbance develops along the circumferential direction，and the jet column becomes highly asymmetric. In the range of parameters studied in this paper，gas compressibility and gas-liquid density ratio surface tension can promote the instability of the jet and affect the spatial shape of the jet，especially in the circumferential direction，it can change the dominant mode of the jet and enhance the asymmetry of the jet. Both surface tension and liquid viscosity are conducive to the jet stability.
PDF
204
100
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
