Effect of Axial Location on the Performance of a Control Jet in a Supersonic Cross Flow

2021 ◽  
pp. 89-104
Author(s):  
Raj Kiran Grandhi ◽  
Arnab Roy
Keyword(s):  
Cross Flow ◽  
Axial Location

Experimental Investigation of a RQL Burner With Jet in Cross Flow Fuel Injection: Characterization of the Reacting Flow Field at Realistic Operating Conditions

2019 ◽  
Author(s):  
T. Soworka ◽  
T. Behrendt ◽  
C. Hassa ◽  
J. Heinze ◽  
E. Magens ◽  
...  
Keyword(s):  
Flow Field ◽  
Fuel Injection ◽  
Measurement Techniques ◽  
Cross Flow ◽  
Mie Scattering ◽  
Operating Conditions ◽  
Reacting Flow ◽  
Axial Location ◽  
Primary Zone ◽  
Jet In Cross Flow

Abstract Future rich-burn/quick-quench/lean-burn (RQL) burners for aero engines face the challenge to further reduce the emission of soot. Alternative ways of fuel injection are therefore in the focus of modern RQL combustion systems. This contribution aims to investigate experimentally the influence of fuel injection on the reacting flow field, with the emphasis on soot production in the primary zone. For the test, a Rolls-Royce prototype burner was used in two different configurations which differ only in the axial location of jet in cross flow fuel injection and thereby provoke different ways of fuel atomization. In the upstream configuration the burner features characteristics of a pre-filming airblast atomizer. Whereas with the fuel tip in downstream position solely Jet-in-Cross-Flow fuel atomisation is expected. The burner was tested at realistic aero engine combustor conditions (p30 = 9.28 bar, T30 = 603 K, AFR = 7.6). Several optical measurement techniques were used to characterise the reacting flow field. Their difficult application in a rich burn environment is described briefly. The structure of the reacting flow field is illustrated by Particle-Image-Velocimetry (PIV). Planar Mie scattering and Planar Laser-Induced Fluorescence (PLIF) are used to characterise the placement of liquid and gaseous fuel respectively. The location and structure of heat release zones are captured in terms of OH* and CO2* chemiluminescence. Finally Laser-Induced-Incandescence (LII) is used to obtain three dimensional soot distributions in the primary zone. On this basis 20% less soot was measured for the upstream configuration at the axial location of maximal soot concentration. This remarkable difference could be attributed to the different placement of liquid fuel and the resulting better mixing.

Intrakranieller Cross-flow als prognostischer Faktor für einen frischen Infarkt im MRT nach Carotis-TEA

2007 ◽  
Vol 34 (S 2) ◽  
Author(s):  
H Soda ◽  
A Zormann ◽  
A Agaev ◽  
G Christopoulos ◽  
H Schweiger ◽  
...  
Keyword(s):  
Cross Flow ◽  
Prognostischer Faktor

Effect of Runner Position on Performance for Open Type Cross-Flow Turbine Utilizing Waterfalls

2014 ◽  
Vol 8 (6) ◽  
pp. 1012
Author(s):  
Yusuke Katayama ◽  
Shouichiro Iio ◽  
Salisa Veerapun
Keyword(s):  
Cross Flow ◽  
Open Type

TRAJECTORY AND MOMENTUM COHERENCE BREAKDOWN OF A LIQUID JET IN HIGH-DENSITY AIR CROSS-FLOW

2007 ◽  
Vol 17 (1) ◽  
pp. 47-70 ◽  
Author(s):  
Raffaele Ragucci ◽  
Alessandro Bellofiore ◽  
Antonio Cavaliere
Keyword(s):  
Cross Flow ◽  
High Density ◽  
Liquid Jet

St-Re-Pr RELATIONSHIP FOR A HEATED/COOLED CYLINDER IN LAMINAR CROSS FLOW

2008 ◽  
Author(s):  
Frantisek Marsik ◽  
Zdenek Travnicek ◽  
Ruey-Hor Yen ◽  
Wen-Yun Tu ◽  
An-Bang Wang
Keyword(s):  
Cross Flow

Nonlinear Characteristics of Periodically Fully Developed Dlow in Cross-Flow Tube Bundle

2014 ◽  
Author(s):  
Qingqing Yong ◽  
mo yang ◽  
Zhiyun Wang ◽  
Jian Chen ◽  
Dan Su ◽  
...  
Keyword(s):  
Tube Bundle ◽  
Cross Flow ◽  
Flow Tube ◽  
Nonlinear Characteristics
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