@article{Guangfei Wang_Licheng Sun_Liang Zhao_Min Du_2018, title={An Evaluation of Correlations for Predicting Pressure Drop of Air-Water Flow in Narrow Rectangular Duct}, volume={5}, url={https://www.avantipublishers.com/index.php/jatsr/article/view/868}, DOI={10.15377/2409-5826.2018.05.5}, abstractNote={ Aiming at developing a more common method for predicting two-phase flow pressure drop for small channels, experiments on frictional pressure drop of air-water flow in a vertical narrow rectangular duct with a cross-section of 40 mm by 1.6 mm were conducted at atmospheric pressure. The mass flow rates of air and water covered the ranges from 0.03 to 12.5 kg/h and from 19 to 903 kg/h, respectively. It was found that the two-phase flow can be divided into three regions according to the liquid only Reynolds number, by which a modified Chisholm two-phase multiplier was proposed for predicting frictional pressure drop. Some leading correlations for predicting two-phase flow pressure drop were compared with the new correlation against current experimental data, the latter had and a mean deviation of 7.2%, showing a better agreement with the experimental results.}, number={1}, journal={Journal of Advanced Thermal Science Research}, author={Guangfei Wang and Licheng Sun and Liang Zhao and Min Du}, year={2018}, month={Dec.}, pages={34–43} }