A comparative numerical analysis of linear and nonlinear aerodynamic sound generation by vortex disturbances in homentropic constant shear flows
Aerodynamic sound generation in shear flows is investigated in the light of the breakthrough
in hydrodynamics stability theory in the 1990s, where generic phenomena of non-normal …
in hydrodynamics stability theory in the 1990s, where generic phenomena of non-normal …
Aerodynamic sound of turbulent time-developing shear layer as the outcome of the flow linear non-modal instability
G Khujadze, D Gogichaishvili, G Chagelishvili… - arXiv preprint arXiv …, 2021 - arxiv.org
The aim of this paper is to substantiate the importance of non-normality of shear flow linear
operators and its consequence--the non-modal dynamics of the perturbations--in the …
operators and its consequence--the non-modal dynamics of the perturbations--in the …
On the analogy between black holes and bathtub vortices
S Patrick - arXiv preprint arXiv:2009.02133, 2020 - arxiv.org
Analogical thinking is a valuable tool in theoretical physics, since it allows us to take the
understanding we have developed in one system and apply it to another. In this thesis, we …
understanding we have developed in one system and apply it to another. In this thesis, we …
[图书][B] On the basic phenomena of acoustic wave generation and dynamics in compressible shear flows
JN Hau - 2017 - books.google.com
Besonders bei der Auslegung von Flugzeugtriebwerken machen es Lärmverordnungen und
geltende Anforderungen an die Lufttüchtigkeit unmöglich, aeroakustische Eigenschaften zu …
geltende Anforderungen an die Lufttüchtigkeit unmöglich, aeroakustische Eigenschaften zu …
The nature of aerodynamic sound of turbulent temporal shear layers
G Khujadze, D Gogichaishvili, G Chagelishvili, H Foyisi… - 2024 - researchsquare.com
This paper aims to establish the pivotal role of the linear non-modal dynamics of
perturbations in the aerodynamic sound emission of turbulent temporal shear/mixing layers …
perturbations in the aerodynamic sound emission of turbulent temporal shear/mixing layers …
Superadiabatic evolution of acoustic and vorticity perturbations in Couette flow
Nonadiabatic transitions between the acoustic and the vorticity modes perturbing a plane
Couette flow are examined in the context of higher-order WKB asymptotics. In the case of the …
Couette flow are examined in the context of higher-order WKB asymptotics. In the case of the …
Comparison between two different analytical solutions and a horizontal shear wave propagating in a functionally graded piezoelectric-layered structure
Q Zhang, X Cao, Y Ru - Proceedings of the 2014 Symposium …, 2014 - ieeexplore.ieee.org
We study the horizontal shear (SH) wave problem propagating in a functionally graded
piezoelectric material (FGPM) layered structure to compare the Wentzel-Kramers-Brillouin …
piezoelectric material (FGPM) layered structure to compare the Wentzel-Kramers-Brillouin …