Results 11 to 20 of about 1,014,874 (281)

Aerodynamics of vortex ingestion for aero-engines [PDF]

open access: yes, 2013
The potential impact of inlet flow distortion on the stability and performance of aircraft engines remains a key concern for engine-airframe integration. Current and future configurations, such as Unmanned Combat Air Vehicles (UCAVs), and possible civil
McLelland, Grant
core   +7 more sources

Simulation of incompressible viscous flows around moving objects by a variant of immersed boundary-Lattice Boltzmann method [PDF]

open access: yes, 2010
A variant of immersed boundary-lattice Boltzmann method (IB-LBM) is presented in this paper to simulate incompressible viscous flows around moving objects.
Zhang, Y.H., Wu, J., Shu, C.
core   +4 more sources

Dynamics of vortex shedding from slender cones [PDF]

open access: yes, 2009
PhDThe dynamics of vortex shedding from bluff bodies has been investigated experimentally for many decades, with the simple geometric case for the investigation being a uniform circular cylinder aligned with its axis normal to the flow. Even though
Jagadeesh, Chetan Sakaleshpur
core   +4 more sources

Statistical Analysis of Dynamic Subgrid Modeling Approaches in Large Eddy Simulation

open access: yesAerospace, 2021
In large eddy simulation (LES) of turbulent flows, dynamic subgrid models would account for an average cascade of kinetic energy from the largest to the smallest scales of the flow.
Mohammad Khalid Hossen   +2 more
doaj   +1 more source

EN The wave model of secondary flows and coherent structures in pipes

open access: yesHolodilʹnaâ Tehnika i Tehnologiâ, 2020
In this article, a theoretical analysis of the flows arising in the cross sections of fluid and gas flows is performed. Such flows are subdivided into secondary flows and coherent structures. From experimental studies it is known that both types of flows
S. Surkov
doaj   +1 more source

Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers. [PDF]

open access: yesAdv Sci (Weinh)
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Chu J, Zhang L, Wang X, Li W, Liu Y.
europepmc   +2 more sources

A highly adaptive three dimensional hybrid vortex method for inviscid flows and helically symmetric vortex equilibria [PDF]

open access: yes, 2012
This thesis is concerned with three-dimensional vortex dynamics, in particular the modelling of vortex structures in an inviscid context. We are motivated by the open problem of regularity of the inviscid equations, i.e.
Lucas, Daniel
core   +2 more sources

Using boundary-layer coordinates to compute unsteady laminar two-dimensional viscous and convective flows

open access: yesAIP Advances, 2022
In this paper, the use of boundary-layer coordinates to compute various unsteady laminar two-dimensional viscous flows is discussed. Three illustrative examples are provided, including flow around a corner, free convective flow from a heated corner, and ...
S. J. D. D’Alessio
doaj   +1 more source

Numerical modelling of viscous turbomachinery flows with a pressure correction method [PDF]

open access: yes, 1992
A fully elliptic computational method for the analysis of steady viscous flow in high speed subsonic centrifugal compressor impellers with tip leakage, is presented.
Tourlidakis, A.
core   +7 more sources

Closed vortex lines in fluid and gas

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
Continuous fluid and gas flows with closed vortex tubes are investigated. The circulation along the vortex line of the ratio of the density of the resultant of all forces (applied to the fluid or gas) to the density of the fluid or gas is considered.
Grigory Borisovich Sizykh
doaj   +1 more source

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