Results 41 to 50 of about 60,257 (227)

Analytical theory of forced rotating sheared turbulence: The parallel case [PDF]

, 2008
Forced turbulence combined with the effect of rotation and shear flow is studied. In a previous paper [N. Leprovost and E. J. Kim, Phys. Rev. E 78, 016301 (2008)], we considered the case where the shear and the rotation are perpendicular.
A. A. Townsend, A. I. Lebedinsky, Eun-jin Kim, G. Rüdiger, H. K. Moffatt, J. Pedlovsky, L. L. Kichatinov, M. Steenbeck, Nicolas Leprovost, P. Goldreich, P. S. Cally, U. Frisch   +11 more
core   +5 more sources

Microfluidic Mixing with the Dynamic Control of Magnetic Actuation

Advanced Intelligent Systems, EarlyView.
Schematic illustration and flow field visualization of magnetically actuated L‐shaped microrobots displaying cooperative vortex generation for enhanced microscale mixing. The left side shows the electromagnetic actuation setup, which enables programmable control of rotational direction and frequency.
Prashant Kishor Sharma, Tsung‐Yen Lu, Chia‐Yuan Chen   +2 more
wiley   +1 more source

Some Early Studies of Isotropic Turbulence: A Review

Atmosphere
A re-examination of some early classic turbulence literature, mainly of isotropic turbulence, is given in this selective review. Some early studies, including original concepts and points, are reviewed or highlighted.
John Z. Shi
doaj   +1 more source

Average Polarization of Electromagnetic Gaussian Schell-Model Beams through Anisotropic Non-Kolmogorov Turbulence [PDF]

Radioengineering, 2016
Polarization properties of electromagnetic Gaussian Schell-model beams propagating through the anisotropic non-Kolmogorov turbulence of marine-atmosphere channel are studied based on the cross-spectral density matrix.
Yuanhang Zhao, Yixin Zhang, Qiu Wang
doaj  

Turbulence Generated in Active Grid Mode Using a Multi-Fan Wind Tunnel

Journal of Fluid Science and Technology, 2007
The wind tunnel used is equipped with an array of small fans (9 columns×11 rows), each of which is independently controlled via a personal computer.
Shigehira OZONO, Hiromori MIYAGI, Kazuhiro WADA   +2 more
doaj   +1 more source

Large eddy simulation of two-dimensional isotropic turbulence [PDF]

, 1996
Large eddy simulation (LES) of forced, homogeneous, isotropic, two-dimensional (2D) turbulence in the energy transfer subrange is the subject of this paper.
A. Chekhlov, A. S. Monin, A. Yakhot, Alexei Chekhlov, Boris Galperin, D. Forster, G. E. Karniadakis, G. I. Sivashinsky, G. K. Batchelor, G. L. Browning, Ilya Staroselsky, J. A. Domaradzki, J. Smagorinsky, J. Smagorinsky, J. Sommeria, L. Smith, L. Smith, R. H. Kraichnan, R. H. Kraichnan, R. H. Kraichnan, R. H. Kraichnan, R. Sadourny, S. A. Orszag, S. Gama, S. Gama, Semion Sukoriansky, Steven A. Orszag, V. Yakhot, V. Yakhot, W. P. Dannevik, Y. Kuramoto   +30 more
core   +2 more sources

Numerical Analysis of Proton Exchange Membrane Fuel Cell Performance With a Lung Serpentine Flow Field

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Proton exchange membrane fuel cells (PEMFC) are regarded as the best clean energy conversion technology because of their smaller number of emissions and higher efficiency. This numerical investigation used two different flow channel designs—the serpentine flow field (SFF) and the lung serpentine flow field (LSFF)—with active areas of 5 by 5 cm.
Muralikrishna Boni, Venkateswarlu Velisala, Amarnath Gundalabhagavan, B. H. C. Surya   +3 more
wiley   +1 more source

Energy transfer and vortex structures: visualizing the incompressible turbulent energy cascade

New Journal of Physics, 2023
The transfer of kinetic energy from large to small scales is a hallmark of turbulent flows. Yet, a precise mechanistic description of this transfer, which is expected to occur via an energy cascade, is still missing.
Ryan McKeown, Alain Pumir, Shmuel M Rubinstein, Michael P Brenner, Rodolfo Ostilla-Mónico   +4 more
doaj   +1 more source

Binary Quantum Turbulence Arising from Countersuperflow Instability in Two-Component Bose-Einstein Condensates

, 2010
We theoretically study the development of quantum turbulence from two counter-propagating superfluids of miscible Bose-Einstein condensates by numerically solving the coupled Gross-Pitaevskii equations. When the relative velocity exceeds a critical value,
C. J. Pethick, Hiromitsu Takeuchi, I. M. Khalatnikov, I. M. Khalatnikov, I. M. Khalatnikov, I. M. Khalatnikov, I. M. Khalatnikov, Makoto Tsubota, P. K. Kundu, R. J. Donnelly, Shungo Ishino, V. I. Yukalov, Y. A. Nepomnyashchii, Y. A. Nepomnyashchii   +13 more
core   +1 more source

Study on Natural Gas Decarbonization Process Based on CO2 Desublimation Characteristics

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Natural gas decarbonization is a crucial processing step. In this study, the snow separation technology for removal of carbon dioxide in natural gas based on CO2 desublimation characteristics was introduced. The phase equilibrium calculation of CH4‐CO2 and N2‐CO2 system was carried out by using cubic equations of states (EOSs), and identified ...
Haiqin Wang, Jushi Cai, Zubin Zhang, Qishen Wu   +3 more
wiley   +1 more source