| Автор | H H Bruun |
| Автор | N Nabhani |
| Автор | A A Fardad |
| Автор | H H Al-Kayiem |
| Дата выпуска | 1990-12-01 |
| dc.description | The authors are concerned with the interpretation of the instantaneous signals from an X hot-wire probe used for velocity component measurements. A detailed calibration study was carried out to identify the correct velocity and yaw response of a typical plated X hot-wire probe. The calibration data identified an accurate calibration relationship for the X hot-wire probe, and enabled the development of a related look-up inversion method. This provided a reference for the assessment of the accuracy of common signal analysis methods. Using a step-by-step approach, the errors caused by the assumptions of constant values for the offset and exponent in a power law relationship were first identified. Then, the errors relating to the introduction of the concept of an effective velocity V<sub>eff</sub> and analysis in terms of V<sub>eff</sub><sup>2</sup> were determined and finally the errors in the sum and difference method based on V<sub>eff.</sub> The authors demonstrate that these errors cannot be neglected, even at low turbulence intensity, if accurate flow measurements are required. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Velocity component measurements by X hot-wire anemometry |
| Тип | paper |
| DOI | 10.1088/0957-0233/1/12/010 |
| Electronic ISSN | 1361-6501 |
| Print ISSN | 0957-0233 |
| Журнал | Measurement Science and Technology |
| Том | 1 |
| Первая страница | 1314 |
| Последняя страница | 1321 |
| Аффилиация | H H Bruun; Dept. of Mech. & Manuf. Eng., Bradford Univ., UK |
| Аффилиация | N Nabhani; Dept. of Mech. & Manuf. Eng., Bradford Univ., UK |
| Аффилиация | A A Fardad; Dept. of Mech. & Manuf. Eng., Bradford Univ., UK |
| Аффилиация | H H Al-Kayiem; Dept. of Mech. & Manuf. Eng., Bradford Univ., UK |
| Выпуск | 12 |
