TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Dynamic studies of surface water film in different heat & mass exchange conditions at water-air boundary



Full text article ( in russian)

Year

 
2018

Issue

 
384

Volume

 
2

Pages

 
112-120

Caption

 
Dynamic studies of surface water film in different heat & mass exchange conditions at water-air boundary

Authors

 
Zenchenko S.

Keywords

 
surface water film, air-water boundary, heat and mass exchange, heat imagery equipment, space-time variability, water temperature, air temperature, micro-scale changes, convection.

DOI

 
10.24937/2542-2324-2018-2-384-112-120

Summary

 
Object and purpose of research.This paper studies surface water film at water-air boundary. The purpose is to investigate, in controllable conditions, the dynamics of an abnormal formation in case of heat & mass exchange variation.
Subject matter and methodsMicro-scale changes were monitored by infrared imagery, as well as by contact instrumentation for temperature and humidity measurements. The study was performed for varying ratio of water and air temperature, as well as for various ratios between water temperature and evaporation rate.
Main results.The data were obtained on magnitude and size of temperature field, their variation in time, their correlation with convective phenomena and stability violations, as well as on synchronous variations of boundary air layer condition. The study also yielded behavior laws for the air-water boundary.
Conclusion.The study yielded quantitative estimates of air-water boundary state, as well as the conditions in which they take place. These data are necessary to take into account climatic and environmental changes in development of green ships. This model ensures predictions of practical parameters for the medium.

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