Droplet Dynamics in Hydraulic Nozzle Spray Clouds

2009 ◽  
pp. 142-142-14 ◽  
Author(s):  
BW Young
Keyword(s):  
Droplet Dynamics

DROPLET DYNAMICS AFTER IMPACTING ON HYDROPHILIC POWDER BEDS COMPOSED OF UNIFORM AND NON-UNIFORM SIZE PARTICLES

2020 ◽  
Vol 8 (1) ◽  
pp. 11-24
Author(s):  
Wei Xiong ◽  
Ping Cheng ◽  
Zhiyuan Ma ◽  
Xiaojun Quan ◽  
Wei Yao
Keyword(s):  
Uniform Size ◽  
Droplet Dynamics

Fuel Droplet Dynamics and Dispersion of Practical Twin-Fluid Atomizer for Oil Furnace

1997 ◽  
Vol 24 (1-3) ◽  
pp. 138-148 ◽  
Author(s):  
Yuji Ikeda ◽  
Nobutaka Tsuchimoto ◽  
N. Kawahara ◽  
Tsuyoshi Nakajima
Keyword(s):  
Fuel Droplet ◽  
Droplet Dynamics

Destruction of water-in-oil emulsions in electromagnetic fields in a dynamic mode

2012 ◽  
Vol 9 (1) ◽  
pp. 110-115
Author(s):  
L.A. Kovaleva ◽  
R.R. Zinnatullin ◽  
V.N. Blagochinnov ◽  
A.A. Musin ◽  
Yu.I. Fatkhullina ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Radio Frequency ◽  
Electromagnetic Fields ◽  
Dynamic Mode ◽  
Droplet Dynamics ◽  
Oil Emulsion ◽  
Numerical Studies ◽  
Em Field ◽  
Oil Emulsions ◽  
Water In Oil Emulsion

Some results of experimental and numerical studies of the influence of radio-frequency (RF) and microwave (MW) electromagnetic (EM) fields on water-in-oil emulsions are presented. A detailed investigation of the dependence of the dielectric properties of emulsions on the frequency of the field makes it possible to establish the most effective frequency range of the EM influence. The results of water-in-oil emulsion stability in the RF EM field depending on their dielectric properties are presented. The effect of the MW EM field on the emulsion in a dynamic mode has been studied experimentally. In an attempt to understand the mechanism of emulsion destruction the mathematical model for a single emulsion droplet dynamics in radio-frequency (RF) and microwave (MW) electromagnetic fields is formulated.

scholarly journals Two-Phase Turbulence Statistics from High Fidelity Dispersed Droplet Flow Simulations in a Pressurized Water Reactor (PWR) Sub-Channel with Mixing Vanes

Fluids ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 72
Author(s):  
Nadish Saini ◽  
Igor A. Bolotnov
Keyword(s):  
Continuous Phase ◽  
System Level ◽  
Data Repository ◽  
High Fidelity ◽  
Turbulence Statistics ◽  
Two Phase ◽  
Pressurized Water ◽  
Droplet Dynamics ◽  
High Resolution Data ◽  
Spacer Grids

In the dispersed flow film boiling regime (DFFB), which exists under post-LOCA (loss-of-coolant accident) conditions in pressurized water reactors (PWRs), there is a complex interplay between droplet dynamics and turbulence in the surrounding steam. Experiments have accredited particular significance to droplet collision with the spacer-grids and mixing vane structures and their consequent positive feedback to the heat transfer recorded in the immediate downstream vicinity. Enabled by high-performance computing (HPC) systems and a massively parallel finite element-based flow solver—PHASTA (Parallel Hierarchic Adaptive Stabilized Transient Analysis)—this work presents high fidelity interface capturing, two-phase, adiabatic simulations in a PWR sub-channel with spacer grids and mixing vanes. Selected flow conditions for the simulations are informed by the experimental data found in the literature, including the steam Reynolds number and collision Weber number (Wec={40,80}), and are characteristic of the DFFB regime. Data were collected from the simulations at an unprecedented resolution, which provides detailed insights into the continuous phase turbulence statistics, highlighting the effects of the presence of droplets and the comparative effect of different Weber numbers on turbulence in the surrounding steam. Further, axial evolution of droplet dynamics was analyzed through cross-sectionally averaged quantities, including droplet volume, surface area and Sauter mean diameter (SMD). The downstream SMD values agree well with the existing empirical correlations for the selected range of Wec. The high-resolution data repository from the simulations herein is expected to be of significance to guide model development for system-level thermal hydraulic codes.

Tracking lipid droplet dynamics for the discrimination of cancer cells by a solvatochromic fluorescent probe

2021 ◽  
Vol 333 ◽  
pp. 129541
Author(s):  
Linlin Yang ◽  
Jianping Wang ◽  
Bianhua Liu ◽  
Guangmei Han ◽  
Hong Wang ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Fluorescent Probe ◽  
Lipid Droplet ◽  
Droplet Dynamics

scholarly journals Size-Classified Droplet Dynamics of Combusting Spray in 0.1 MW Oil Furnace.

1999 ◽  
Vol 65 (630) ◽  
pp. 790-797
Author(s):  
Nobuyuki KAWAHARA ◽  
Yuji IKEDA ◽  
Tsuyoshi NAKAJIMA
Keyword(s):  
Droplet Dynamics
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