Experiment study of the dynamics and cooling effectiveness of single droplet impacting on a heated solid surface

2021 ◽  
Author(s):  
Mingjun Xu ◽  
Yu Wang
Keyword(s):  
Solid Surface ◽  
Single Droplet ◽  
Experiment Study ◽  
Cooling Effectiveness

scholarly journals Observation of Deformation of Single Droplet Impact on Solid Surface

2012 ◽  
Vol 26 (2) ◽  
pp. 164-171 ◽  
Author(s):  
Yasuki SAKURAI ◽  
Kazumichi KOBAYASHI ◽  
Toshihide FUJIKAWA ◽  
Toshiyuki SANADA ◽  
Masao WATANABE
Keyword(s):  
Solid Surface ◽  
Droplet Impact ◽  
Single Droplet

Microwave resonance method for measuring microliter volumes of free moisture in aviation fuels

2020 ◽  
pp. 49-56
Author(s):  
Vitaly V. Volkov ◽  
Michael A. Suslin ◽  
Jamil U. Dumbolov
Keyword(s):  
Solid Surface ◽  
Free Water ◽  
Resonance Method ◽  
Cavity Resonator ◽  
Maximum Error ◽  
Aviation Fuel ◽  
Fuel Quality ◽  
Microwave Resonance ◽  
Free Moisture ◽  
Microwave Losses

One of the conditions for ensuring the safety of air transport operation is the quality of aviation fuel refueled in aircraft. Fuel quality control is a multi-parameter task that includes monitoring the free moisture content. Regulatory documents establish the content of free water no more than 0.0015% by weight. It is developed a direct electrometric microwave resonance method for controlling free moisture in aviation fuels, which consists in changing the shape of the water drops by pressing them on a solid surface inside a cylindrical cavity resonator. This can dramatically increase dielectric losses. Analytical and experimental analysis of the proposed method is carried out. The control range from 0,5 to 30 μl of absolute volume of moisture in aviation fuels with a maximum error of not morethan 25 % is justified. The sensitivity of the proposed method for monitoring microwave losses in free moisture drops transformed into a thin layer by pressing is an order of magnitude greater than the sensitivity of the method for monitoring microwave losses in moisture drops on a solid surface in a resonator. The proposed method can be used as a basis for the development of devices for monitoring the free moisture of aviation fuels in the conditions of the airfield and laboratory. The direction of development of the method is shown.

Sign in / Sign up

Export Citation Format

Share Document