{'fraction_non_alphanumeric': 0.05510388437217705, 'fraction_numerical': 0.037940379403794036, 'mean_word_length': 5.087912087912088, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Correction to “Prediction of fingering in porous media”

[1] In the paper ‘‘Prediction of fingering in porous media’’ by Zhi Wang, Jan Feyen, and David E. Elrick (Water Resources Research 34(9), 2183–2190, 1998), the authors developed 24 specific criteria for predicting unstable flow in porous media, based on the Chuoke equation [Chuoke et al., 1959]. However, some of the results were inconsistent with predictions by others. For instance, de Rooij [2000] noted that the Wang criteria showed unstable flow for overly rapid upward flow in contrary to Philip’s [1975] theory that predicted an unconditionally stable flow. These discrepancies resulted from three mistakes in the theoretical development, namely, (1) an inconsistency in the transcription of the Chuoke equation (equation (1) in the original paper), (2) a discrepancy between the definition of s* compared to the Chuoke definition (leading to a wrong equation (3a)) and, (3) sign errors in the development of the criteria (Table 1). In the following, we give the correct development and revise the 24 stability criteria of Wang et al. [1998].