Phase-opposition control of the precessing vortex core in turbulent swirl flames for investigation of mixing and flame stability
The precessing vortex core (PVC) is a helically shaped coherent flow structure that occurs in
reacting and nonreacting swirling flows undergoing vortex breakdown. In swirl-stabilized …
reacting and nonreacting swirling flows undergoing vortex breakdown. In swirl-stabilized …
Excitation of the precessing vortex core by active flow control to suppress thermoacoustic instabilities in swirl flames
F Lückoff, K Oberleithner - International Journal of Spray and …, 2019 - journals.sagepub.com
In this study, we apply periodic flow excitation of the precessing vortex core at the
centerbody of a swirl-stabilized combustor to investigate the impact of the precessing vortex …
centerbody of a swirl-stabilized combustor to investigate the impact of the precessing vortex …
Examining the effect of geometry changes in industrial fuel injection systems on hydrodynamic structures with biglobal linear stability analysis
TL Kaiser, K Oberleithner… - … of Engineering for …, 2020 - asmedigitalcollection.asme.org
Shape optimization with respect to the suppression or enhancement of dynamical flow
structures is an important topic in combustion research and beyond. In this paper, we …
structures is an important topic in combustion research and beyond. In this paper, we …
Examining the effect of geometry changes in industrial fuel injection systems on hydrodynamic structures with biglobal linear stability analysis
TL Kaiser, K Oberleithner… - … Expo: Power for …, 2019 - asmedigitalcollection.asme.org
Shape optimization with respect to the suppression or enhancement of dynamical flow
structures is an important topic in combustion research and beyond. In this paper, we …
structures is an important topic in combustion research and beyond. In this paper, we …
Design of a fluidic actuator with independent frequency and amplitude modulation for control of swirl flame dynamics
A Adhikari, T Schweitzer, F Lückoff, K Oberleithner - Fluids, 2021 - mdpi.com
Fluidic actuators are designed to control the oscillatory helical mode, called a precessing
vortex core (PVC), which is often observed in gas turbine combustors. The PVC induces …
vortex core (PVC), which is often observed in gas turbine combustors. The PVC induces …
[PDF][PDF] Development of a Fluidic Actuator with IndependentFrequency and Amplitude Modulation for Control of aPrecessing Vortex Core
A Adhikari - static.tu.berlin
Swirl-stabilized combustion is widely used in recent years in gas turbines because of its
excellent mixing and good flame stability. It makes use of the swirl motion for the fuel-air …
excellent mixing and good flame stability. It makes use of the swirl motion for the fuel-air …
Large eddy simulation study of flow field characteristics of a combustor with two coaxial swirlers
Q Zhang, P Zhang, S Sun, Y Song… - Proceedings of the …, 2020 - journals.sagepub.com
The cold and reaction flow fields of a combustor with two coaxial swirlers are investigated by
means of large eddy simulation. Effective data processing methods such as proper …
means of large eddy simulation. Effective data processing methods such as proper …
[PDF][PDF] Active flow control as a tool to reveal the role of the precessing vortex core in swirl flames
FS Lückoff - 2021 - depositonce.tu-berlin.de
This doctoral thesis and the accumulated publications would not have been realized without
the support and help of some specific persons. First of all, I want to mention my supervisors …
the support and help of some specific persons. First of all, I want to mention my supervisors …