Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms
The inlet grid and exhaust grid are widely used in engineering machinery products. The process that airflow goes through grids is a complex turbulent flow and directly related to the heat dispersion and aerodynamic noise. The theoretical analysis result shows that the jet noise generated by airflow...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/2741748 |
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| _version_ | 1849693389486817280 |
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| author | Enlai Zhang Liang Hou Huikun Cai Chao Shen Yaxiang Zhang |
| author_facet | Enlai Zhang Liang Hou Huikun Cai Chao Shen Yaxiang Zhang |
| author_sort | Enlai Zhang |
| collection | DOAJ |
| description | The inlet grid and exhaust grid are widely used in engineering machinery products. The process that airflow goes through grids is a complex turbulent flow and directly related to the heat dispersion and aerodynamic noise. The theoretical analysis result shows that the jet noise generated by airflow has a connection with the grid structure form, fluid flowing situation, and heat conduction. In addition, the influences of different grid structure forms (included the round hole, long hole, and square hole) and porosity on the heat dissipation and aerodynamic noise were analyzed and presented based on the verified computational fluid dynamics (CFD) model. Results show that the heat dispersion and aerodynamic noise of the round hole are most effective under the same porosity; as the porosity increases, the disturbance degree decreases and the noise reduction effect gets better. Finally, the research result provides the scientific basis for improving grid structure and achieving energy saving and noise reduction. |
| format | Article |
| id | doaj-art-2dc4569a3bf74c94a547237dd71bfa08 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2dc4569a3bf74c94a547237dd71bfa082025-08-20T03:20:26ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/27417482741748Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid FormsEnlai Zhang0Liang Hou1Huikun Cai2Chao Shen3Yaxiang Zhang4Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaDepartment of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, ChinaThe inlet grid and exhaust grid are widely used in engineering machinery products. The process that airflow goes through grids is a complex turbulent flow and directly related to the heat dispersion and aerodynamic noise. The theoretical analysis result shows that the jet noise generated by airflow has a connection with the grid structure form, fluid flowing situation, and heat conduction. In addition, the influences of different grid structure forms (included the round hole, long hole, and square hole) and porosity on the heat dissipation and aerodynamic noise were analyzed and presented based on the verified computational fluid dynamics (CFD) model. Results show that the heat dispersion and aerodynamic noise of the round hole are most effective under the same porosity; as the porosity increases, the disturbance degree decreases and the noise reduction effect gets better. Finally, the research result provides the scientific basis for improving grid structure and achieving energy saving and noise reduction.http://dx.doi.org/10.1155/2016/2741748 |
| spellingShingle | Enlai Zhang Liang Hou Huikun Cai Chao Shen Yaxiang Zhang Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms Shock and Vibration |
| title | Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms |
| title_full | Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms |
| title_fullStr | Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms |
| title_full_unstemmed | Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms |
| title_short | Research on Thermal-Field and Sound-Field Coupling Properties of Different Grid Forms |
| title_sort | research on thermal field and sound field coupling properties of different grid forms |
| url | http://dx.doi.org/10.1155/2016/2741748 |
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