نتایج جستجو برای: w turbulence model
تعداد نتایج: 2300459 فیلتر نتایج به سال:
The presence of wall strengtheners in double-stage electrostatic precipitators affects gas velocity, electrical field and particle movement over the ESP. In this work we have used our previous mathematical model for double-stage ESP {Talaie et. al (2001) [10]] to study the effect of wall strengtheners on the performance of double-stage ESP. One of the important findings was that, due to the fac...
Partly funded by the “Fonds National Suisse de la Recherche Scientifique”. A new fast ion source and detector for investigating the interaction of turbulence with supra-thermal ions in a simple magnetized toroidal plasma. G.Plyushchev*, H. Boehmer1, A. Diallo, A. Fasoli, I. Furno, W. W. Heidbrink1, B. Labit, S. H. Müller, M. Podestà, F. M. Poli, Y. Zhang1 1 Department of Physics and Astronomy, ...
Impurity-induced turbulence suppression and reduced transport in the DIII-D tokamak* G. R. McKee, M. Murakami, J. A. Boedo, N. H. Brooks, K. H. Burrell, D. R. Ernst, R. J. Fonck, G. L. Jackson, M. Jakubowski, R. J. La Haye, A. M. Messiaen, J. Ongena, C. L. Rettig, B. W. Rice, C. Rost, G. M. Staebler, R. D. Sydora, D. M. Thomas, B. Unterberg, M. R. Wade, and W. P. West General Atomics, P.O. Box ...
Gyrokinetic turbulence simulations are presented with full drift-kinetic electron dynamics including both trapped and passing particle effects. This is made possible by using a generalization of the split-weight scheme �I. Manuilskiy and W. W. Lee, Phys. Plasmas 7, 1381 �2000�� that allows for a variable adiabatic part, as well as use of the parallel canonical momentum formulation. Linear simul...
The flow structure of strongly turbulent Taylor-Couette flow with Reynolds numbers up to Re(i)=2×10(6) of the inner cylinder is experimentally examined with high-speed particle image velocimetry (PIV). The wind Reynolds numbers Re(w) of the turbulent Taylor-vortex flow is found to scale as Re(w)∝Ta(1/2), exactly as predicted by Grossmann and Lohse [Phys. Fluids 23, 045108 (2011).] for the ultim...
Water-side turbulence enhancement of ozone deposition to the ocean C. W. Fairall, D. Helmig, L. Ganzeveld, and J. Hare NOAA Earth Science Research Laboratory, Boulder, CO, USA INSTAAR, University of Colorado, Boulder, CO, USA Max-Planck Institute for Chemistry, Mainz, Germany CIRES, University of Colorado, Boulder, CO, USA now at: SOLAS International Project Office, University of East Anglia, N...
The aim of the current work is to investigate a series of new subgrid models by employing the Kolmogorov equation of ltered quantities (KEF), which is an exact relation of turbulence in physical space. Di erent formulations of KEF are derived, including the forms in velocity eld (homogeneous isotropic turbulence, inhomogeneous anisotropic turbulence, homogeneous shear turbulence, homogeneous ro...
Using experimental models along with conducting numerical analysis have been widely used in performance recognition and optimization of hydraulic equipments. Numerical modeling has lower cost rather than experimental one; however practical tests are commonly used because of the hydraulic structure importance especially in dams. Meanwhile numerical methods could be used for future designs throug...
on the source of plasma density and electric field perturbations in pmse and pmwe regionspolar mesospheric summer/winter echoes (pmse/pmwe) are very strong radar echoes produced by ionospheric electron density fluctuations at half the radar wavelength. the main focus of this paper is the altitude range 80 to 90 km in summer and altitude range 65-86 km in winter in the polar mesosphere . this pa...
en wave collisions, the fundamental building block of plasma turbulence. IV. Laboratory experiment D. J. Drake, J. W. R. Schroeder, G. G. Howes, C. A. Kletzing, F. Skiff, T. A. Carter, and D. W. Auerbach Department of Physics, Astronomy, and Geosciences, Valdosta State University, Valdosta, Georgia 31698, USA Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, USA De...
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