This paper investigates the self-cleansing performance of an airlift pump with a U-bend. For this purpose, an experimental setup is used to assess the effect of air flow on the pump's ability to lift water and remove particles under different submergence ratios and particle concentrations. In addition, a simple yet accurate fluid mechanical model is used to interpret the experiments with individual particles and to predict the critical water velocity required for particle removal from the pipe bend.
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Nigardsøy et al. (2023) studied this question.
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