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How to reduce fluctuations of the suspension height overtime during sedimentation? 


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To reduce fluctuations in suspension height during sedimentation over time, various factors need consideration. Stratification alone cannot govern local velocity fluctuations in sedimenting spheres. Inertial screening at Reynolds numbers above a critical value significantly reduces both the magnitude and spatial extent of particle velocity fluctuations. A nonlinear two-fluid stochastic hydrodynamical description highlights a strong reduction in velocity fluctuation dependence on system size, aiding in resolving long-standing puzzles in the field. The width of the front in a suspension grows linearly due to polydispersity or density fluctuations, contributing to overall fluctuations. Improving settling height methods by characterizing suspension stability through solid loading variations can help mitigate fluctuations and provide more accurate data for stabilization assessment. Integrating these insights can lead to a more stable sedimentation process with reduced fluctuations in suspension height.

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To reduce suspension height fluctuations during sedimentation, focus on minimizing polydispersity in particle size and controlling density fluctuations, as highlighted in the research.
To reduce fluctuations in suspension height during sedimentation, use the improved settling height method by measuring deflection of solid loading in equidistant portions, ensuring undisturbed suspension and proper venting.
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Inertial screening at Reynolds numbers above 0.05 reduces suspension height fluctuations during sedimentation by decreasing both magnitude and spatial extent of particle velocity fluctuations.
Dynamical Renormalization Group Theory predicts a significant reduction in velocity fluctuations dependence on system size, offering a potential method to decrease suspension height fluctuations during sedimentation over time.
Stratification control of velocity fluctuations in sedimentation cannot sufficiently reduce observed fluctuations in suspension height over time, as per the study's findings.

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