Stability and Negative Pressure in Bulk and Confined Liquids

Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Abstract

Negative pressure in liquids – especially in confined systems, like capillaries – often acts as a cohesive force between the solid walls, surrounding the liquid. These forces are responsible for various processes and phenomena, like sap transport in trees or mud stability/mud slides of granular systems (like soil). Due to the metastability of the liquids under negative pressure, different properties (including the limit of stability) cannot be measured directly because the metastable state might equilibrate back to stable ones (liquid + vapour) by cavitation, before the end of the measurement. Therefore it would be crucial to have an equation of state to describe the behavior of liquids (especially for water) in this region. We are going to present some result – comparing experimental data, molecular dynamic simulations and some analytical calculations -, showing which equations could be used in the metastable region and which should be the special pre-cautions taken during their use.

Keywords

Liquid Water Metastable State Stability Limit Bulk Water Isothermal Compressibility 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The Author wish to express his appreciation to Prof. U. K. Deiters and Dr. T. Kraska for their advices and for the German Humboldt Foundation for supporting his stay in Cologne.

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.HAS Centre for Energy ResearchBudapestHungary
  2. 2.Institute of Physical ChemistryUniversity of CologneKölnGermany

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