Author: Rom Garreth McGuffin
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 390
Book Description
Effects of Energy Release on Combustion Instability in a Ramjet Combustor
Author: Rom Garreth McGuffin
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 390
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 390
Book Description
Numerical Simulations of Flowfields in a Central-Dump Ramjet Combustor. 3. Effects of Chemistry
Author: Kazhikathra Kailasanath
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
Book Description
This report is the third in a series which presents the results of numerical simulations performed to isolate and study acoustic-vortex-chemical interactions in an idealized ramjet consisting of an axisymmetric inlet and combustor and a choked nozzle. Both reactive and nonreactive flows have been simulated. The nonreactive flow calculations show complex interactions among the natural instability frequency of the shear layer at the inlet-combustor junction and the acoustics of both the inlet and the combustor. The entire flow oscillates at a low frequency which corresponds to that of a quarter-mode in the inlet. For the reactive flow cases studied, energy release alters the flow field substantially. Energy release in a large vortex is in phase with the pressure oscillation over a substantial region of the combustor and results in the observed amplification of the low-frequency oscillations and leads to combustion instability. The large pressure oscillation also modifies the vortex shedding process. Keywords: Ramjet, Turbulence, Combustion instability. (jes).
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
Book Description
This report is the third in a series which presents the results of numerical simulations performed to isolate and study acoustic-vortex-chemical interactions in an idealized ramjet consisting of an axisymmetric inlet and combustor and a choked nozzle. Both reactive and nonreactive flows have been simulated. The nonreactive flow calculations show complex interactions among the natural instability frequency of the shear layer at the inlet-combustor junction and the acoustics of both the inlet and the combustor. The entire flow oscillates at a low frequency which corresponds to that of a quarter-mode in the inlet. For the reactive flow cases studied, energy release alters the flow field substantially. Energy release in a large vortex is in phase with the pressure oscillation over a substantial region of the combustor and results in the observed amplification of the low-frequency oscillations and leads to combustion instability. The large pressure oscillation also modifies the vortex shedding process. Keywords: Ramjet, Turbulence, Combustion instability. (jes).
Numerical Simulation and Active Control of Combustion Instability in a Ramjet Combustor
Author: S. Menon
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Ramjet Combustor Instabilities
Author: Luc Bauwens
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 226
Book Description
Large-eddy Simulations of Combustion Instability in an Axisymmetric Ramjet Combustor
Author: Suresh Menon
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Experimental Effect of Gas Flow Transients on the Heat Release of Burning Liquid Drops in a Rocket Combustor
Author: Marcus F. Heidmann
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 28
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
Book Description
Evaluation of Tangential Velocity Effects on Spinning Transverse Combustion Instability
Author: Marcus F. Heidmann
Publisher:
ISBN:
Category : Rocket engines
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Rocket engines
Languages : en
Pages : 20
Book Description
Investigation of Combustion Instability in Ramjet Combustors
Author: Dierk Martin Reuter
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 294
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 294
Book Description
Aerothermodynamics of Gas Turbine and Rocket Propulsion
Author: Gordon C. Oates
Publisher: AIAA
ISBN: 9781600860065
Category : Aerothermodynamics
Languages : en
Pages : 476
Book Description
Publisher: AIAA
ISBN: 9781600860065
Category : Aerothermodynamics
Languages : en
Pages : 476
Book Description