Case Studies | Hydrology Science | China | Volume 2 Issue 8, August 2013
Study on Application of Three Methods for Calculating the Dispersion Parameters - A Case Study in Yinchuan, China
Zhang Zhihua, Zhang Hanting
In this paper, linear graphical method, moment method and inverse function method are first applied in the laboratory test of one dimensional sand column device, determining the longitudinal dispersion coefficient. The longitudinal dispersions for five groups of sand taken from 20cm below the ground surface in the Oil Refinery of China Petroleum Ningxia Filial are obtained. On this basis, the problems within the calculation process when the three kinds of methods are applied into actual data were discussed. It can be readily concluded that the three values of dispersion coefficients are approximate, and the errors caused by the subjective factors of artificial mapping and numerical reading were avoided. The inverse function method is recommended to apply for the high accuracy, sample calculation process, less known conditions and better linearity.
Keywords: longitudinal dispersion coefficient, laboratory test, linear graphical method, moment method, inverse function method
Edition: Volume 2 Issue 8, August 2013
Pages: 473 - 478
How to Cite this Article?
Zhang Zhihua, Zhang Hanting, "Study on Application of Three Methods for Calculating the Dispersion Parameters - A Case Study in Yinchuan, China", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=29081301, Volume 2 Issue 8, August 2013, 473 - 478
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