Adjoint methods as design tools in thermoacoustics
L Magri - Applied Mechanics Reviews, 2019 - asmedigitalcollection.asme.org
In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple
with acoustic pressure oscillations. If the heat release is sufficiently in phase with the …
with acoustic pressure oscillations. If the heat release is sufficiently in phase with the …
Unveiling the competitive role of global modes in the pattern formation of rotating sphere flows
J Sierra-Ausín, M Lorite-Díez… - Journal of Fluid …, 2022 - cambridge.org
The wake flow past a streamwise rotating sphere is a canonical model of numerous
applications, such as particle-driven flows, sport aerodynamics and freely rising or falling …
applications, such as particle-driven flows, sport aerodynamics and freely rising or falling …
Three-dimensional instability of a flow past a sphere: Mach evolution of the regular and Hopf bifurcations
A Sansica, JC Robinet, F Alizard… - Journal of fluid …, 2018 - cambridge.org
A fully three-dimensional linear stability analysis is carried out to investigate the unstable
bifurcations of a compressible viscous fluid past a sphere. A time-stepper technique is used …
bifurcations of a compressible viscous fluid past a sphere. A time-stepper technique is used …
[HTML][HTML] Convergence enhancement of SIMPLE-like steady-state RANS solvers applied to airfoil and cylinder flows
A Dicholkar, F Zahle, NN Sørensen - Journal of Wind Engineering and …, 2022 - Elsevier
Abstract Iterative steady Reynolds-averaged Navier–Stokes (RANS) solvers are widely used
to obtain polars representing the aerodynamic characteristics of airfoils. Unsteadiness is …
to obtain polars representing the aerodynamic characteristics of airfoils. Unsteadiness is …
Turbulent flow over a cylinder confined in a channel at Re= 3,900
This paper presents data from numerical simulation of the flow over a cylinder confined in a
channel at Reynolds number of 3,900. Direct numerical simulation (DNS) of the flow field …
channel at Reynolds number of 3,900. Direct numerical simulation (DNS) of the flow field …
Some new characteristics of the confined flow over circular cylinders at low Reynolds numbers
This study summarises some new characteristics of the fluid flow over a confined circular
cylinder at low Reynolds numbers. Results from both two-and three-dimensional direct …
cylinder at low Reynolds numbers. Results from both two-and three-dimensional direct …
On the effect of a penetrating recirculation region on the bifurcations of the flow past a permeable sphere
We study the flow past a permeable sphere modeled using homogenization theory. The flow
through the porous medium is described by the Darcy law, in which the permeability …
through the porous medium is described by the Darcy law, in which the permeability …
Laminar supersonic sphere wake unstable bifurcations
The laminar sphere unstable bifurcations are sought at a Mach number of M∞= 1.2. Global
stability performed on steady axisymmetric base flows determines the regular bifurcation …
stability performed on steady axisymmetric base flows determines the regular bifurcation …
On the unsteady wake flow behind a sphere with large transverse-rotating speeds
The unsteady wake downstream of a spinning sphere with a Reynolds number of 7930 ( R
e= U o D/ν, based on the sphere diameter and the free-stream velocity) and a range of …
e= U o D/ν, based on the sphere diameter and the free-stream velocity) and a range of …
Time-averaged flow field behind a transversely spinning sphere: An experimental study
Z Li, D Zhang, Y Liu, N Gao - Physics of Fluids, 2023 - pubs.aip.org
The aerodynamic forces on a sphere with a rough surface were measured in a water tunnel
at a Reynolds number of 7930 and for a range of spinning ratios (α) from 0 to 6.0. The time …
at a Reynolds number of 7930 and for a range of spinning ratios (α) from 0 to 6.0. The time …