Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
Abstract
:1. Introduction
2. Analysis and the Candidate Solution for Inlet Start Issues
2.1. SES Effects Caused by Overlarge Lateral Compression
2.2. Modular Assessment Approach for the Spillage Pattern Analysis
2.3. Novel Spillage-Adaptive Integration Pattern
3. Integrated Design of the Spillage-Adaptive Bump Inlet
4. Aerodynamic Characteristics of the New Bump Inlet
4.1. Preparation of Numerical Simulation
4.2. Aerodynamic Characteristics of the Spillage-adaptive Integration at the Design Condition
4.3. Start-Ability of the New Spillage-Adaptive Bump Inlet
4.4. Effects of Boundary Layer Thickness to Aerodynamic Characteristics
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Type | Mesh Number | σexit | πexit | Mexit | φthroat |
---|---|---|---|---|---|
Coarse grid | 3.5 million | 0.487 | 17.812 | 3.014 | 0.747 |
Medium grid | 4.3 million | 0.489 | 18.371 | 3.018 | 0.748 |
Fine grid | 6.0 million | 0.489 | 18.374 | 3.018 | 0.748 |
Spillage Position | M∞ | φthroat | Mexit | σexit | πexit | RM | ηKE |
---|---|---|---|---|---|---|---|
1. Side spillage | 6.0 | 0.748 | 3.02 | 0.49 | 18.4 | 0.499 | 0.969 |
2. Central spillage | 6.0 | 0.745 | 2.94 | 0.48 | 17.1 | 0.487 | 0.968 |
M∞ | φthroat | φspillage | Mexit | σexit | πexit | RM | ηKE |
---|---|---|---|---|---|---|---|
6.0 | 0.748 | 0 | 3.02 | 0.49 | 18.4 | 0.499 | 0.969 |
5.0 | 0.676 | 9.5% | 2.49 | 0.53 | 13.0 | 0.497 | 0.961 |
4.0 | 0.547 | 26.8% | 1.78 | 0.45 | 11.1 | 0.445 | 0.921 |
3.5 | 0.508 | 32.1% | 1.53 | 0.53 | 9.9 | 0.437 | 0.920 |
3.0 | 0.459 | 38.6% | 1.22 | 0.64 | 9.2 | 0.405 | 0.927 |
2.5 | 0.339 | 54.6% | 0.81 | 0.75 | 8.2 | 0.324 | 0.933 |
2.0 | 0.253 | 66.1% | 0.95 | 0.83 | 3.6 | 0.475 | 0.931 |
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Yu, Z.; Huang, G.; Wang, R.; Musa, O. Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range. Aerospace 2021, 8, 340. https://doi.org/10.3390/aerospace8110340
Yu Z, Huang G, Wang R, Musa O. Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range. Aerospace. 2021; 8(11):340. https://doi.org/10.3390/aerospace8110340
Chicago/Turabian StyleYu, Zonghan, Guoping Huang, Ruilin Wang, and Omer Musa. 2021. "Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range" Aerospace 8, no. 11: 340. https://doi.org/10.3390/aerospace8110340