Формула фільтрації

Формула фільтрації — формула, що виражає нелінійний закон фільтрації, тобто зв'язок між швидкістю фільтрації υ i градієнтом тиску

dp / dl : - dp / dl = a υ + b υ2 ,

де a, b — постійні експериментальні коефіцієнти, причому а характеризує сили в'зкого тертя (а =μ / k ; μ — в'язкості динамічний коефіцієнт; k — проникності коефіцієнт), b — інерційні сили (формула Ширковського).

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