Ecological Engineering Laboratory (ECOL), Environmental Engineering Institute (IIE), Faculty of Architecture, Civil and Environmental Engineering (ENAC), Ecole polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York, United States of America.
PLoS One. 2018 Apr 16;13(4):e0194907. doi: 10.1371/journal.pone.0194907. eCollection 2018.
An expression was developed for prediction of drag coefficients for any spherical particle, drop or bubble in an infinite, homogeneous liquid. The formula reproduces the limiting cases for gas bubbles and solid spheres, as well as the exact Hadamard-Rybczynski solution. The accuracy of the expression, which is valid for Reynolds numbers up to a few hundred, was confirmed by comparison with published numerical predictions of the drag coefficient for a range of physical circumstances.
开发了一个表达式,用于预测无限均相液体中任何球形颗粒、液滴或气泡的阻力系数。该公式再现了气体气泡和固体球体的极限情况,以及准确的 Hadamard-Rybczynski 解。该表达式的准确性在雷诺数高达几百的范围内得到了验证,与发表的关于各种物理情况的阻力系数的数值预测进行了比较。