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TVT, 2016, Volume 54, Issue 4, Pages 584–589 (Mi tvt8000)  

Heat and Mass Transfer and Physical Gasdynamics

Experimental estimation of the influence of the droplet evaporation process on the conditions of movement in an oncoming high-temperature gas flow

R. S. Volkov, G. V. Kuznetsov, P. A. Strizhack

Tomsk Polytechnic University

Abstract: By means of high-speed video registration, the cross-correlation system, and panoramic optical methods of trace visualization, experimental estimation of the influence of liquid (water) droplet evaporation on the conditions of droplet movement (acceleration and deceleration) through the high-temperature (about $1100$ K) gases was made. The experiments were conducted with droplets about $1$$6$ mm in diameter at start velocities of $1$$5$ m/s. We compare the integral characteristics of the droplet movement in the air at a temperature of about $300$ K (in the ongoing flow and through the steady gas medium) and in the combustion product flow at a temperature of about $1100$ K. The gas and the air flow velocities were about $1.5$ m/s. The typical difference in the droplet velocities under essentially different ambient temperatures was discovered. The contribution of water evaporation and the ongoing gas movement into droplet deceleration was discovered.

Funding Agency Grant Number
Russian Science Foundation 14-39-00003
This work was supported by the Russian Science Foundation, project no. 14-39-00003.


DOI: https://doi.org/10.7868/S0040364416030248

Full text: PDF file (481 kB)
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English version:
High Temperature, 2016, 54:4, 555–559

Bibliographic databases:

UDC: 536.4
Received: 12.02.2015

Citation: R. S. Volkov, G. V. Kuznetsov, P. A. Strizhack, “Experimental estimation of the influence of the droplet evaporation process on the conditions of movement in an oncoming high-temperature gas flow”, TVT, 54:4 (2016), 584–589; High Temperature, 54:4 (2016), 555–559

Citation in format AMSBIB
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