| Vorticity Measurements Using a 6-Sensor Hot-Wire Probe in a Tangentially Fired Furnace |
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| 作者姓名： | 何伯述 刁永发 许晋源 陈昌和 |
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| 作者单位： | State Key Laboratory of Clean Comgustion of Coal，Department of Thermal Engineering，Tsinghua University，Beijing 100084，China，State Key Laboratory of Clean Combustion of Coal，Department of Thermal Engineering，Tsinghua University，Beijing 100084，China，School of Energy and Power Engineering，Xi’an Jiaotong University，Xi’an 710049，China，State Key Laboratory of Clean Combustion of Coal，Department of Thermal Engineering，Tsinghua University，Beijing 100084，China College of Mechanical，Electronic and Control Engineering，Northern Jiaotong University，Beijing 100044，China |
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| 基金项目： | Supported by the Machinery Industry Development Foundation of China(No.95JB1101)，the Post-Doctoral Science Foundation of China |
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| 摘 要： | Vorticity, which represents the rotation of a fluid element, is an important characteristic of turbulence. Various methods have been used to measure vorticity. A hot-wire/hot-film anemometer (HWA) was used here to measure the vorticity in turbulent flows. The velocity components and their partial derivatives were simultaneously measured with a new 6-sensor hot-wire (HW) probe assuming ideal yaw and pitch factors with Jorgensen's expression and Taylor's hypothesis to analyze the data. The accurate 6-sensor hot-wire probe results for the velocity field were used to determine the velocity gradients and, therefore, the vorticity vector field. The data was measured in an isothermal model of a tangentially fired furnace. The experimental results in the tangentially fired furnace agree with numerical results.
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Vorticity Measurements Using a 6-Sensor Hot-Wire Probe in a Tangentially-Fired Furnace |
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| HE Boshu,DIAO Yongfa,XU Jinyuan,CHEN Changhe
State Key Laboratory of Clean Combustion of Coal.Vorticity Measurements Using a 6-Sensor Hot-Wire Probe in a Tangentially Fired Furnace[J].Tsinghua Science and Technology,2003,8(2). |
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| Authors: | HE Boshu DIAO Yongfa XU Jinyuan CHEN Changhe
State Key Laboratory of Clean Combustion of Coal |
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| Institution: | HE Boshu,DIAO Yongfa,XU Jinyuan,CHEN Changhe
State Key Laboratory of Clean Combustion of Coal,Department of Thermal Engineering,Tsinghua University,Beijing 100084,China,
College of Mechanical. Electronic and Control Engineering,Northern Jiaotong University,Beijing 100044,China,
School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China |
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| Abstract: | Vorticity, which represents the rotation of a fluid element, is an important characteristic of turbulence. Various methods have been used to measure vorticity. A hot-wire/hot-film anemometer (HWA) was used here to measure the vorticity in turbulent flows. The velocity components and their partial derivatives were simultaneously measured with a new 6-sensor hot-wire (HW) probe assuming ideal yaw and pitch factors with Jorgensen's expression and Taylor's hypothesis to analyze the data. The accurate 6-sensor hot-wire probe results for the velocity field were used to determine the velocity gradients and, therefore, the vorticity vector field. The data was measured in an isothermal model of a tangentially fired furnace. The experimental results in the tangentially fired furnace agree with numerical results. |
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| Keywords: | tangentially fired furnaces 6-sensor hot-wire probe vorticity turbulent flow |
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