What is it about?
Sealants involving the use of base and accelerator often require mixing right before it's application on surfaces such as aircraft composites. Mixing should be homogeneous and performed at the desired base-accelerator ratios to ensure proper curing of the sealant, forming a strong bond thereafter. This study focused on the parameters which affected the dispensing rate and ratios of the sealant, suggesting the variables which could be best varied to achieve the desired mixing ratios should one wish to design an air-pressurised sealant dispenser.
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Why is it important?
This work is useful for applications involving viscous fluid flows and quantifying the Hagen–Poiseuille law, particularly for flows involving liquids in small pipes, under the influence of high resistance and viscous effects.
Perspectives
I truly appreciate the opportunity to work with my colleagues within the Aerospace Malaysia Innovation Centre (AMIC), and I do hope that the work performed on these findings could be further investigated by other parties as it is interesting by it's nature. Further validation of the results may be required, which can be performed via Computational Fluid Dynamics modelling or further experimental work.
Andrew Xian Hann Ling
University of Southampton
Read the Original
This page is a summary of: Quantifiable variables affecting viscous fluid flow in dispensing systems for aerospace applications, January 2024, American Institute of Physics,
DOI: 10.1063/5.0201510.
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