| 一种基于反问题算法的管道壁面热流密度测量技术 |
| |
| 引用本文： | 吴洪潭,崔志尚,许祝安. 一种基于反问题算法的管道壁面热流密度测量技术[J]. 计量学报, 2007, 28(3): 237-239 |
| |
| 作者姓名： | 吴洪潭 崔志尚 许祝安 |
| |
| 作者单位： | 中国计量学院计量技术工程学院,浙江,杭州,310018;浙江大学物理系,浙江,杭州,310027 |
| |
| 摘 要： | 为了解决目前传统测量方法中无法准确计量热流密度的问题，在已知管道内沿层流的几处不同点的测温数据的基础上，建立了热流密度计量的反问题数学模型，采用共轭梯度法，给出了简明的热流测量步骤。数值实验表明，在存在较大温度测量误差的情况下，这种方法仍具有较高的计量精度。
|
| 关 键 词： | 计量学 热流密度 反问题 共轭梯度法 测量误差 |
| 文章编号： | 1000-1158(2007)03-0237-03 |
| 修稿时间： | 2005-01-25 |
A Method for Measuring Duct Wall Heat Flux Based on Inverse Problem Algorithm |
| |
| WU Hong-tan,CUI Zhi-shang,XU Zhu-an. A Method for Measuring Duct Wall Heat Flux Based on Inverse Problem Algorithm[J]. Acta Metrologica Sinica, 2007, 28(3): 237-239 |
| |
| Authors: | WU Hong-tan CUI Zhi-shang XU Zhu-an |
| |
| Abstract: | It is difficult to measure the duct wall heat flux accurately with traditional methods.A new inverse problemmodel of measurement of heat flux is developed,based on the temperature reading taken inside the fluid at different locations along the flow.A straightforward approachis presented by conjugate gradient method.The numerical results show that,this method has a highaccuracy even though there are large measuring errorsin temperature. |
| |
| Keywords: | Metrology Heat flux Inverse problem Conjugate gradient method Error of measurement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
