共被期刊论文引用了2次
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| 1 | Development and calibration of heat transfer coefficient sensor for rotational state显示文摘A novel heat transfer coefficient sensor is introduced and the design,manufacture,and calibration are described.The intended application of this instrument was on a high rotational speed test disc.In the experiments,the heat transfer coefficient sensor was calibrated under static state and rotational state respectively.The calibration under the static state was accomplished in a pipe: the inside diameter(ID) was 0.048m and the total length was 4m,the distance between the sensor and the inlet of the pipe was 3.5m;the standard value was measured using a self-made calibrator.The calibration under the rotational state was accomplished using a rotating disc: the diameter and thickness of the stainless disc were 800mm and 25mm,respectively;the sensor was installed at the location of r=250mm;the rotating disc driven by a 30kW direct current motor can supply the maximum rotational speed of 3000r/min.The standard value under rotational state was provided by an approximate empirical formula.The results show that the designed sensor can measure heat transfer coefficient directly under rotational state and static state with good accuracy and stability;the correlation factor of K are constant under static state and rotational state. | QUAN Yong-kai XU Guo-qiang LUO Xiang ZHANG Da | 2011 | 航空动力学报2011,26,12: | 1 |
| 2 | 稳态自热型对流换热系数传感器研究显示文摘为解决旋转固体表面对流换热系数测试难题,设计并研发了一款基于稳态方法的自热型对流换热系数传感器。进行了管道标定实验,分别与经典经验公式以及自制的标定端进行了对比,结果发现传感器的测试存在一个稳定的比例系数,经修正后相对误差小于5%。采用数值模拟方法进一步从机理方面探究了该比例系数存在的合理性,发现在阶跃加热的情况下存在一个'热调整区',会导致对流换热的阶跃性变化,这种变化类似于'入口效应',同时这种效应不受加热段温度的影响,定性地验证了传感器测量的准确性。 | 韩迪 全永凯 仇冰清 张云伟 高邦淦 | 2018 | 推进技术2018,39,9: | 0 |
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