Axial shear instability in a "Tachion"region

Marji, Ehab


Axial shear instability in a "tachion" region
Tsidulko, YA; Marji, E; Bilikmen, S; Mirnov, VV; Cakir, S; Oke, G (1999-01-01)
Plasma axial-shear flow instability arises due to a variation in an equilibrium E x B rotation along the axial direction in which the magnetic field is aligned. The two fluid MHD equations for incompressible perturbation (taking into account the FLR effects) being treated in WKB approximation in transversal direction yield one scalar Klein-Gordon type equation with one-dimensional effective potential U(s) and effective mass on(s). Only axisymmetric, paraxial geometry is analyzed in order to separate the des...
Axial solid mixing and the dispersion coefficient fluidization velocity relationship in a fluidized bed.
Altun, Metin; Department of Chemical Engineering (1979)
Uysal, B.Z; Özilgen, M. (Informa UK Limited, 1989-7)
Axial dispersion of liquid in Mobile-Bed Contacting (MBC) was investigated employing transient-response technique with impulse input of NaCI tracer. Experiments were performed in a 0.195 m ID column. Three different packing diameters (15, 19.5 and 32 mm) and three different static bed heights (0.1, 0.195 and 0.3 m) were used. Gas flow rate was varied between 3.02 and 4.05 kg/m2/s and liquid flow rate from 2.4 to 10.4 kg/m2/s. Transfer function analysis of data yielded that Peclet number was practically ind...
Axial mixing of solids in a fluidized bed.
Bozay, M. Kemâl; Department of Chemical Engineering (1979)
Lateral stiffness of steel plate shear wall systems
Topkaya, Cem (Elsevier BV, 2009-08-01)
The accuracy of the finite element method and strip method of analysis for calculating the lateral stiffness of steel plate shear wall (SPSW) systems is assessed by making comparisons with experimental findings. Comparisons revealed that while both methods provide acceptable accuracy, they also require the generation of sophisticated computer models. In this paper, two alternative methods are developed. The first one is an approximate hand method based on the deep beam theory. The classical deep beam theory...
Citation Formats
E. Marji, “Axial shear instability in a “Tachion”region,” Middle East Technical University, 1998.