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Your search keyword '"Zheng, Feng-jie"' showing total 22 results
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22 results on '"Zheng, Feng-jie"'

8. A Multidimensional and Multiscale Model for Pressure Analysis in a Reservoir-Pipe-Valve System

Author

Zheng, Feng Jie, Zong, Chao Yong, Dempster, William, Qu, Fu Zheng, and Song, Xue Guan

Subjects
Mechanics of Materials, Mechanical Engineering, 0103 physical sciences, 0211 other engineering and technologies, TJ, 021108 energy, 02 engineering and technology, Safety, Risk, Reliability and Quality, 01 natural sciences, 010305 fluids & plasmas
Abstract

Reservoir-pipe-valve (RPV) systems are widely used in many industrial processes. The pressure in an RPV system plays an important role in the safe operation of the system, especially during the sudden operations such as rapid valve opening or closing. To investigate the pressure response, with particular interest in the pressure fluctuations in an RPV system, a multidimensional and multiscale model combining the method of characteristics (MOC) and computational fluid dynamics (CFD) method is proposed. In the model, the reservoir is modeled as a zero-dimensional virtual point, the pipe is modeled as a one-dimensional system using the MOC, and the valve is modeled using a three-dimensional CFD model. An interface model is used to connect the multidimensional and multiscale model. Based on the model, a transient simulation of the turbulent flow in an RPV system is conducted in which not only the pressure fluctuation in the pipe but also the detailed pressure distribution in the valve is obtained. The results show that the proposed model is in good agreement when compared with a high fidelity CFD model used to represent both large-scale and small-scale spaces. As expected, the proposed model is significantly more computationally efficient than the CFD model. This demonstrates the feasibility of analyzing complex RPV systems within an affordable computational time.

Published
2019

14. The Effects of Natural Chinese Medicine Aconite Root, Dried Ginger Rhizome, and Coptis on Rectal and Skin Temperatures at Acupuncture Points

Author

Yang, Jia-Min, primary, Li, Gang, additional, Wang, Min, additional, Jin, Yi-Xi, additional, Zheng, Feng-Jie, additional, Sun, Yan, additional, Gao, Yu-Shan, additional, Zhang, Shu-Jing, additional, Kang, Peng-Fei, additional, Chen, Lin, additional, Wu, Meng-Yao, additional, Xu, Sheng-Yong, additional, and Li, Yu-Hang, additional

Published
2017
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20. Specific Link between Lung and Large Intestine: A New Perspective on Neuropeptide Secretion in Lung with Herbal Laxative Stimulation

Author

Zhong, Xiang-Gen, primary, Zheng, Feng-Jie, additional, Li, Yu-Hang, additional, Xu, Hong, additional, Wang, Qian, additional, Liu, Yu-Chao, additional, Liu, Miao, additional, Wu, Ruo-Han, additional, Gao, Yu-Shan, additional, Zhang, Shu-Jing, additional, Zhang, Jin-Chao, additional, Zhang, Tian-Yu, additional, and Gao, Si-Hua, additional

Published
2013
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