Investigation of water spray characteristics in the near field of a novel swirl burst injector

2019 ◽  
Vol 102 ◽  
pp. 376-386 ◽  
Author(s):  
V. Danh ◽  
L. Jiang ◽  
O.S. Akinyemi
Keyword(s):  
Near Field ◽  
Water Spray ◽  
Spray Characteristics

Comparison water spray characteristics for inlet air cooling of gas turbine by means of a Phase Doppler Anemometry

2017 ◽  
Vol 2017.22 (0) ◽  
pp. B211
Author(s):  
Asuka TAKATSUKI ◽  
Keitaro MOTOI ◽  
Katsuhiko SUGITA ◽  
Shuichi UMEZAWA ◽  
Hisanobu KAWASHIMA ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Air Cooling ◽  
Water Spray ◽  
Spray Characteristics ◽  
Phase Doppler Anemometry

scholarly journals 1322 Optical measurement of high-speed-water-spray characteristics

2009 ◽  
Vol 2009.46 (0) ◽  
pp. 539-540
Author(s):  
Yasuyuki Kudo ◽  
Nobuyuki Fujisawa ◽  
Fuminori Matsuura
Keyword(s):  
High Speed ◽  
Optical Measurement ◽  
Water Spray ◽  
Spray Characteristics

Analysis of Near-Field Spray Characteristics of Gasoline Injector Using X-ray Phase Contrast Imaging

2018 ◽  
Vol 2018.26 (0) ◽  
pp. 301
Author(s):  
Shuhei CHINONE ◽  
Mitsuru KONNO ◽  
Kotaro TANAKA ◽  
Satoshi SAKAIDA ◽  
Seoksu MOON
Keyword(s):  
Phase Contrast ◽  
Near Field ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
Spray Characteristics ◽  
X Ray

Spray Characteristics and Cooling Effect of Water Spray for Gas Turbine Intake Air

2018 ◽  
Vol 2018.23 (0) ◽  
pp. B134
Author(s):  
Takahiro MIYAOKA ◽  
Asuka TAKATSUKI ◽  
Katsuhiko SUGITA ◽  
Shuichi UMEZAWA ◽  
Hisanobu KAWASHIMA ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Cooling Effect ◽  
Water Spray ◽  
Spray Characteristics ◽  
Effect Of Water

Microscopic investigation of near-field spray characteristics of 2-methylfuran, ethanol and isooctane under flash boiling conditions

Fuel ◽  
2018 ◽  
Vol 215 ◽  
pp. 142-152 ◽  
Author(s):  
Bo Wang ◽  
Ziman Wang ◽  
Xiuchao Bao ◽  
Yanfei Li ◽  
Yizhou Jiang ◽  
...  
Keyword(s):  
Near Field ◽  
Microscopic Investigation ◽  
Spray Characteristics ◽  
Flash Boiling

The effect of transient needle lift on the internal flow and near-nozzle spray characteristics for modern GDI systems investigated by high-speed X-ray imaging

2021 ◽  
pp. 146808742098675 ◽  
Author(s):  
Dmitrii Mamaikin ◽  
Tobias Knorsch ◽  
Philipp Rogler ◽  
Jin Wang ◽  
Michael Wensing
Keyword(s):  
High Speed ◽  
Near Field ◽  
Internal Flow ◽  
Transient Behavior ◽  
Liquid Jet ◽  
Nozzle Flow ◽  
Spray Characteristics ◽  
X Ray ◽  
X Ray Imaging ◽  
Primary Breakup

The development of the injector nozzle is a dynamic area in regard of several technical aspects. At first, the internal flow influences the near-field spray characteristics via various phenomena such as cavitation and turbulence. However, these phenomena are not fully understood due to their extremely fast, complex and multiscale nature. Furthermore, it governs the spray targeting inside the combustion chamber. High-speed X-ray imaging of GDI injector nozzles is performed in this study. The experimental results presented are related to the internal flow and primary breakup of discharged liquid jets. The injectors used are equipped with nozzles made of aluminum which have been specially developed for these investigations to enhance optical accessibility. The visualization of the needle motion, in-nozzle flow and the primary breakup region provides several exciting observations. First, the needle lift tracking exhibits short overshooting right before the steady-state of the injection phase. This event leads to a short-term, however, significant change in the associated performance of the breakup. This phenomenon is found to be a consequence of the transient behavior of the in-nozzle flow. It is shown that under some circumstances hydraulic flip may occur during this overshooting period. The primary jet breakup region is visualized and evaluated by means of image processing. Thus, the transient behavior of liquid jet expansion is quantified in the vicinity of the nozzle. It is observed that the liquid jet direction deviates from the hole axis already at the nozzle outlet, which is caused by internal flow characteristics.

Experimental study on impingement spray and near-field spray characteristics under high-pressure cross-flow conditions

Fuel ◽  
2018 ◽  
Vol 218 ◽  
pp. 12-22 ◽  
Author(s):  
Zhanbo Si ◽  
Nagisa Shimasaki ◽  
Keiya Nishida ◽  
Youichi Ogata ◽  
Min Guo ◽  
...  
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Near Field ◽  
Cross Flow ◽  
Flow Conditions ◽  
Spray Characteristics
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