Guiding actuator designs for active flow control of the precessing vortex core by adjoint linear stability analysis

JS Müller, F Lückoff… - … of Engineering for …, 2019 - asmedigitalcollection.asme.org
… This is then used to discuss the validity of the adjoint as a model for predicting the receptivity
of the PVC to realistic actuation which may guide actuator designs for the active flow control

Guiding actuator designs for active flow control of the precessing vortex core by adjoint linear stability analysis

JS Müller, F Lückoff… - … Expo: Power for …, 2018 - asmedigitalcollection.asme.org
… This is then used to discuss the validity of the adjoint as a model for predicting the receptivity
of the PVC to realistic actuation which may guide actuator designs for the active flow control

Receptivity of the turbulent precessing vortex core: synchronization experiments and global adjoint linear stability analysis

JS Müller, F Lückoff, P Paredes, V Theofilis… - Journal of Fluid …, 2020 - cambridge.org
… turbulent flow be used to guide and interpret flow control? … three-dimensional flow and the
impact of active flow control. Such a … the applied actuation, the global mode and the mean flow. …

[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
… scale, an alternative actuation design is suggested which … following mixing section guides
the turbulent swirling flow into the … PVC, as derived from global adjoint linear stability theory [ , , …

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
… that the actuation locks onto the precessing vortex core when … allows the precessing vortex
core frequency to be controlled. … actuator designs for the control of the precessing vortex core

[PDF][PDF] Receptivity analysis of the precessing vortex core in a turbulent swirling jet by open-loop control and adjoint linear stability theory

JS Müller, L Raumfahrttechnik - static.tu.berlin
… the validity of the adjoint theory as a model for predicting the receptivity of the PVC to
realistic actuation which may guide actuator designs for the active flow control of the PVC in the …

An overview of active control techniques for vortex rope mitigation in hydraulic turbines

S Shtork, D Suslov, S Skripkin, I Litvinov, E Gorelikov - Energies, 2023 - mdpi.com
… main trend in developing active flow control methods, which … the vortex structure, such as
the vortex core size, precession … the adjoint of the global mode as it is the most receptive flow

Complex flow physics & active plasma flow control in convoluted ducts

MM Wojewodka - 2020 - theses.gla.ac.uk
… use of plasma actuators as active flow control techniques in s-… Guiding the air flow to aft
engine components, the s-shaped … Local search methods make use of adjoint gradients which …

Phase-opposition control of the precessing vortex core in turbulent swirl flames for investigation of mixing and flame stability

F Lückoff, M Sieber… - … of Engineering for …, 2019 - asmedigitalcollection.asme.org
… to active flow control can be derived from adjoint modes [20–22… More details about the burner
and actuator design can be … effective flow control due to high response on small actuation

Impact of the Precessing Vortex Core on NOx Emissions in Premixed Swirl-Stabilized Flames—An Experimental Study

F Lückoff, M Sieber… - … of Engineering for …, 2020 - asmedigitalcollection.asme.org
… as precessing vortex core (PVC), which influences the flow … an active flow control system,
allowing for a targeted actuation of the … , design and functionality of the burner and actuator are …