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2 Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika

2 Zapałowicz Z.

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Spreading of droplets of some chosen liquids on the flat, heated wall surface

Zapałowicz Z.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika

2003

Z. 77

65-78

The paper presents results of experimental research on the process of spreding liquid drolets on the surface of a flat, heated wall. The investigation was carried our for some chosen liquids: water, aniline, toluene, and benzene. The liquids were characterised withdifferent chemical-physical properties. The analysis was focused on the surface wetted by the droplet was determined by the wetting coefficient. Results of experimental research were then compared with results of calculations obtained from the model of Ueda modified by the author, and with results obtained from the model of Trela.

Conditions for appearance of droplet structure for aniline

Zapałowicz Z.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika

1999

Z. 67

349--358

The paper presents the experimental stand, methodology and results of the research on the process of two aniline droplets' spreading, that have been dropped simultaneously on a horizontal, heated surface of a metal wall. Droplets, after their contact with the surface, spread reaching their maximal spreading area. Depending on the spacing between the needle-points of the dropper, droplets can merge and thus form a stain of liquid, or remain separate objects. The analysis of research results let determine the areas of droplet structure as well as of liquid stains structure.