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Authors
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Auernhammer, G. K.; Azizmalayeri, R.; Rostami, P.
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Title
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Interaction between transport and wetting processes
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Date
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01.08.2026
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Number
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0
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Abstract
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In this chapter, we explore different examples of detailed dynamics in the vicinity of moving contact lines of complex liquids. For surfactant solutions there is an intricate interplay between surface tension effects and dynamic wetting in both smooth and structured systems. Surfactants significantly alter flow profiles near moving contact lines through surface tension gradients (Marangoni effect), even at low concentrations. Experimental investigations using advanced techniques like APTV reveal deviations from theoretical predictions for simple fluids, emphasizing the importance of considering non-linear rheological behaviors in complex fluids. The study extends to rough and structured surfaces, where surfactants reduce dynamic receding contact angles due to hydrodynamic effects dominating over surface pinning. Nanoporous structures are analyzed at both macroscopic and microscopic scales, revealing pressure-dependent wetting transitions influenced by nanomenisci stiffness. These findings underscore the need for bridging microscale observations with macroscale behaviors in designing functional surfaces. Additionally, granular suspensions exhibit non-Newtonian dynamics near moving contact lines due to particle interactions, leading to shear thickening or thinning effects. The research concludes that detailed microscopic studies are essential for understanding macroscopic wetting phenomena and suggests future investigations into surfactant-induced modifications on structured surfaces.
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Publisher
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Springer
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Wikidata
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Citation
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in: Interaction Between Transport and Wetting Processes / P. Stephan, D. Bothe, B. Lambie (Eds.). Cham: Springer Nature Switzerland, 2026. 125-139; ISBN 978-3-032-26800-6
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DOI
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https://doi.org/10.1007/978-3-032-26801-3_8
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Tags
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Book Chapters
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