Results 101 to 110 of about 739 (180)

Topological Analysis of the 2D von Kármán Street

, 2019
International audienceTopology based analysis and feature tracking is a well studied area. In this work, we focus exclusively on a dataset called the von Kármán street, and apply topology-based methods to understand its vortices.
Kamakshidasan, Adhitya, Natarajan, Vijay
core   +1 more source

A PRIDICTION MODEL FOR THE VORTEX SHEDDING NOISE FROM THE WAKE OF AN AIRFOIL OR AXIAL FLOW FAN BLADES

, 1993
An analytical model is presented for predicting the vortex shedding noise generated from the wake of axial flow fan blades. The downstream wake of a fan blade is assumed to be dominated by the von Kármán vortex street, and the strength and the shedding ...
Kim, Y.-H., Chung, M.K., Lee, C.
core   +1 more source

Numerical analysis and simulation of the interaction between a Von Kármán vortex street and elastic flaps

, 2013
The performance improvement of heat exchangers is a major challenge in many industries. Some of these heat exchangers use vortex generators to produce coherent structures that enhance the heat and mass transfer.
Harion, Jean-Luc, Elmarakbi, Ahmed, S. Ali, Habchi, Charbel, A. Elmarakbi, Ali, Samer, Lemenand, Thierry, C. Habchi, Menenteau, Sébastien, S. Menenteau, T. Lemenand, J.L. Harion   +11 more
core   +1 more source

Python-based lattice Boltzmann method simulation of the von Kármán vortex street behind a cylinder & comparison with PIV

A Python-based lattice Boltzmann method (LBM) simulation of the von Kármán vortex street behind a circular cylinder at a moderate Reynolds number (Re = 150) has been developed with validation through particle image velocimetry (PIV) experiments and ...
Britt, Tyler
core   +1 more source

Aerodynamic Optimization Design of a Supergravity Centrifuge: A Low-Resistance Strategy

Applied Sciences
Wind resistance optimization is crucial for enhancing the rotational speed of supergravity centrifuges. We conducted a study using computational fluid dynamics on the Centrifugal Hypergravity and Interdisciplinary Experiment Facility (CHIEF) under ...
Yi-Nan Guo, Yi Yang, Wei-An Lin, Jian-Qun Jiang, De Ding   +4 more
doaj   +1 more source

On Tzitzéica vortex streets and their reciprocals in subsonic gas dynamics

, 2005
Hydrodynamic vortex street solutions are generated based on an elliptic Tzitzéica model. A multiparameter class of reciprocal transformations is coupled with the action of a Backhand transformation to construct compressible vortex solutions of breather ...
Schief, WK, Mak, CC, Rogers, C, Chow, KW
core   +1 more source

Karman Vortex Street Energy Harvester for Picoscale Applications

, 2018
Energy extraction from the Kármán Vortex Street could serve as a viable alternative power source for remote water-based electrical applications. This project focused on creating a device utilizing thin- film piezoelectric transducers to generate ...
Doty, James E, Mayforth, Christopher, Pratt, Nicholas Rathgeb   +2 more
core  

Reorganization of Coherent Structures Downstream a Circular Cylinder Located between Two Parallel Walls

Journal of Applied Fluid Mechanics, 2011
Experiments were performed at low Reynolds numbers in the range 75 Re 275 in the wake of a circular cylinder of dc diameter placed symmetrically between two parallel walls of H height. 2D2C particle image velocimetry (PIV) was used to investigate the
F. Rehimi, F. Aloui, S. Ben Nasrallah
doaj  

A Flow Sensing Device Formed Exclusively by Employing Additive Manufacturing for On-Site Fabrication Aboard a Ship. [PDF]

Sensors (Basel), 2023
Pagonis DN, Matsoukas I, Kaltsas G, Pilatis A.   +3 more
europepmc   +1 more source

Formation of turbulent secondary vortex street in absence of vortex shedding instability

This work investigates the formation mechanism of the turbulent secondary vortex street (SVS) which appears in the far wake of bluff bodies, when the (primary) Kármán vortex street is absent.
Bempedelis, Nikos, Bekoglu, E, Steiros, Konstantinos, Bempedelis, N, Steiros, K, Bekoglu, Elif   +5 more
core   +1 more source