Investigation of turbulence flow characteristics in a dual-mode scramjet combustor using hydroxyl tagging velocimetry

2019 ◽  
Vol 157 ◽  
pp. 276-281 ◽  
Author(s):  
Jingfeng Ye ◽  
Deyong Shi ◽  
Wenyan Song ◽  
Guohua Li ◽  
Zhenrong Zhang ◽  
...  
Keyword(s):  
Flow Characteristics ◽  
Dual Mode ◽  
Scramjet Combustor ◽  
Turbulence Flow ◽  
Hydroxyl Tagging Velocimetry

scholarly journals CH* Luminance Distribution Application and a One-Dimensional Model of the Supersonic Combustor Heat Release Quantization

2019 ◽  
Vol 36 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Z. P. Wang ◽  
H. B. Gu ◽  
L. W. Cheng ◽  
F. Q. Zhong ◽  
X. Y. Zhang
Keyword(s):  
Heat Release ◽  
Recirculation Zone ◽  
Subsonic Flow ◽  
Flow Characteristics ◽  
Combustion Mode ◽  
Dimensional Model ◽  
Dual Mode ◽  
One Dimensional ◽  
Scramjet Combustor ◽  
Standard Parameter

Abstract One-dimensional model is an important way to evaluate the performance and flow characteristics of dual-mode scramjet combustor. Current work is based on a modified one-dimensional model assisted by measurements acquired on a direct-connected scramjet facility. CH* images and gas-sampling facility have been employed to quantify heat release for optimizing one-dimensional model. The results show that modified one-dimensional model gives a better evaluation of axis parameters distribution, especially for Mach number, which is the standard parameter to evaluate combustion mode. The ram/scram mode derived by the analytical results has been investigated. Intensive heat release is beneficial to obtain more stable pre-combustion shock and subsonic flow in the recirculation zone.

Experimental Investigation of Reacting Flow Characteristics in a Dual-Mode Scramjet Combustor

2018 ◽  
Vol 35 (4) ◽  
pp. 321-330 ◽  
Author(s):  
Deyong Shi ◽  
Wenyan Song ◽  
Jingfeng Ye ◽  
Bo Tao ◽  
Yanhua Wang ◽  
...  
Keyword(s):  
Flow Characteristics ◽  
Tunable Diode Laser ◽  
Reacting Flow ◽  
Temperature Profiles ◽  
Dual Mode ◽  
High Enthalpy ◽  
Flame Holder ◽  
Scramjet Combustor ◽  
Pressure Profiles ◽  
Bottom Side

Abstract In this work, a hydrogen fueled dual-mode scramjet combustor was investigated experimentally. Clean and dry air was supplied to the combustor through a Mach 2 Nozzle with a total temperature of 800 K and a total pressure of 800 kPa. The high enthalpy air was provided by an electricity resistance heater. Room temperature hydrogen was injected with sonic speed from injector orifices vertically, and downstream the injector a tandem cavity flame holder was mounted. Except wall pressure profiles, velocity and temperature profiles in and at exit of the combustor were also measured using hydroxyl tagging velocimetry (HTV) and tunable diode laser absorption spectroscopy (TDLAS) respectively. Results showed that combustion occurred mainly at the bottom side of the combustor. And there were also an extreme disparity of the velocity and temperature profiles along the Y direction, i.e. the transverse direction.

Experimental Investigation of Reacting Flow Characteristics in a Dual-Mode Scramjet Combustor

2016 ◽  
Vol 33 (2) ◽  
Author(s):  
Deyong Shi ◽  
Wenyan Song ◽  
Jingfeng Ye ◽  
Bo Tao ◽  
Yanhua Wang
Keyword(s):  
Flow Characteristics ◽  
Tunable Diode Laser ◽  
Reacting Flow ◽  
Temperature Profiles ◽  
Dual Mode ◽  
High Enthalpy ◽  
Flame Holder ◽  
Scramjet Combustor ◽  
Pressure Profiles ◽  
Bottom Side

AbstractIn this work, a hydrogen-fueled dual-mode scramjet combustor was investigated experimentally. Clean and dry air was supplied to the combustor through a Mach 2 nozzle with a total temperature of 800 K and a total pressure of 800 kPa. The high enthalpy air was provided by an electricity resistance heater. Room temperature hydrogen was injected with sonic speed from injector orifices vertically, and downstream the injector a tandem cavity flame holder was mounted. Except wall pressure profiles, velocity and temperature profiles in and at exit of the combustor were also measured using hydroxyl tagging velocimetry (HTV) and tunable diode laser absorption spectroscopy (TDLAS), respectively. Results showed that combustion occurred mainly at the bottom side of the combustor. And there were also an extreme disparity of the velocity and temperature profiles along the

Hybrid Large Eddy Simulation/Reynolds-Averaged Navier–Stokes Analysis of a Premixed Ethylene-Fueled Dual-Mode Scramjet Combustor

AIAA Journal ◽  
2021 ◽  
pp. 1-17
Author(s):  
Tanner B. Nielsen ◽  
Jack R. Edwards ◽  
Harsha K. Chelliah ◽  
Damien Lieber ◽  
Clayton Geipel ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Navier Stokes ◽  
Dual Mode ◽  
Eddy Simulation ◽  
Scramjet Combustor ◽  
Large Eddy ◽  
Reynolds Averaged Navier Stokes

Control-oriented modeling and real-time simulation method for a dual-mode scramjet combustor

2018 ◽  
Vol 153 ◽  
pp. 82-94 ◽  
Author(s):  
Jicheng Ma ◽  
Juntao Chang ◽  
Junlong Zhang ◽  
Wen Bao ◽  
Daren Yu
Keyword(s):  
Real Time ◽  
Simulation Method ◽  
Dual Mode ◽  
Real Time Simulation ◽  
Scramjet Combustor ◽  
Time Simulation

Characterization of Flame Front Structure in a Dual-Mode Scramjet Combustor with OH-PLIF

2019 ◽  
Author(s):  
Clayton M. Geipel ◽  
Andrew D. Cutler ◽  
Robert D. Rockwell ◽  
Harsha K. Chelliah
Keyword(s):  
Flame Front ◽  
Dual Mode ◽  
Scramjet Combustor ◽  
Front Structure

Flame Transition in Dual-Mode Scramjet Combustor with Oxygen Piloted Ignition

2014 ◽  
Vol 30 (4) ◽  
pp. 1103-1107 ◽  
Author(s):  
Jichao Hu ◽  
Wen Bao ◽  
Juntao Chang
Keyword(s):  
Dual Mode ◽  
Scramjet Combustor ◽  
Piloted Ignition
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