Simulated fuel injection through a wedge-shaped orifice into supersonic flow

1995 ◽  
Author(s):  
M Barber ◽  
L Roe ◽  
J Schetz
Keyword(s):  
Supersonic Flow ◽  
Fuel Injection ◽  
Simulated Fuel

Pylon-Aided Fuel Injection into Supersonic Flow

2007 ◽  
Author(s):  
Rama Balar ◽  
Ken Yu ◽  
Ashwani Gupta ◽  
Ajay Kothari
Keyword(s):  
Supersonic Flow ◽  
Fuel Injection

scholarly journals Numerical Investigation of Various Fuel Injection Angles on Interaction in Cold Kerosene-fueled Supersonic Flow

2017 ◽  
Vol 7 ◽  
pp. 66-71 ◽  
Author(s):  
Yin-Yin Qi ◽  
Lin Zhu ◽  
Wei-Lai Liu ◽  
Bao-Jian Xu ◽  
Jia-Ru Ge ◽  
...  
Keyword(s):  
Supersonic Flow ◽  
Numerical Investigation ◽  
Fuel Injection

scholarly journals An Experimental Study of Emission and Combustion Characteristics of Marine Diesel Engine with Fuel Injector Malfunctions

2016 ◽  
Vol 23 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Jerzy Kowalski
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Direct Injection ◽  
Technical Condition ◽  
Exhaust Gas ◽  
Gas Composition ◽  
Fuel Injector ◽  
Opening Pressure ◽  
Simulated Fuel ◽  
Marine Diesel

Abstract The presented paper shows the results of the laboratory study on the relation between chosen malfunctions of a fuel injector and composition of exhaust gas from the marine engine. The object of research is a marine 3-cylinder, four-stroke, direct injection diesel engine with an intercooler system. The engine was loaded with a generator and supercharged. The generator was electrically connected to the water resistance. The engine operated with a load between 50 kW and 250 kW at a constant speed. The engine load and speed, parameters of the turbocharger, systems of cooling, fuelling, lubricating and air exchange, were measured. Fuel injection and combustion pressures in all cylinders of the engine were also recorded. Exhaust gas composition was recorded by using a electrochemical gas analyzer. Air pressure, temperature and humidity were also recorded. Emission characteristics of the engine were calculated according to ISO 8178 standard regulations. During the study the engine operated at the technical condition recognized as „working properly” and with simulated fuel injector malfunctions. Simulation of malfunctions consisted in the increasing and decreasing of fuel injector static opening pressure, decalibration of fuel injector holes and clogging 2 neighboring of 9 fuel injector holes on one of 3 engine cylinders.

Parametric Analysis of Pylon-Aided Fuel Injection in Scramjet Engines

2013 ◽  
Vol 135 (2) ◽  
Author(s):  
Mitchell R. Pohlman ◽  
Robert B. Greendyke
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Supersonic Flow ◽  
Performance Analysis ◽  
Parametric Analysis ◽  
Fuel Injection ◽  
Absolute Size ◽  
Plume Area ◽  
Air Mixing ◽  
Computational Fluid Dynamics Cfd

The current study investigates means to increase the efficiency of fuel-air mixing into supersonic flow upstream of a flame holding cavity. Previous work has shown much promise in increasing the penetration and mixing of a fuel-air mixture into the freestream by injecting fuel behind small triangular pylons. The current paper examines 21 triangular pylons of varying widths, heights, and lengths with a computational fluid dynamics (CFD) performance analysis. Increasing the height of the pylons increased the penetration, flammable fuel plume area, and floor gap. Variations in pylon length had no discernible impact on the fuel-air mixing metrics. Aerodynamic loses were minimal for all pylon configurations and did not correlate to the absolute size of the pylons tested.

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