Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Uberoi, A."'
Publikováno v:
Physics Letters A. 152:70-78
Nonlinear analysis of two-dimensional steady flows with density stratification in the presence of gravity (and the analogous rotating flows) is simplified under the condition that the dynamic pressure (which is the product of the density of the fluid
Autor:
B. K. Shivamoggi, M. S. Uberoi
Publikováno v:
Acta Mechanica. 41:211-215
A study is made of vortex breakdown in stratified flow. It is found that a positive stratification in the cortex, i.e., the density increasing away from the axis, has the effect of postponing the vortex breakdown and vice versa. Next, further conside
Autor:
Mahinder S. Uberoi
Publikováno v:
Journal of Fluid Mechanics. 90:241-255
The dynamics of an infinitely long one-dimensional vortex and a swirl are compared with the dynamics of a semi-infinitely long trailing vortex and trailing swirl. With increasing distance, the change in the axial velocity difference between the core
Publikováno v:
Computers & Fluids. 9:389-393
The slip boundary condition often used in numerical computation of flow problems is examined to find its influence on the solution when there is a rotational body force field. Two specific examples are considered having different force distributions
Publikováno v:
Journal of Plasma Physics. 22:187-191
Convective instability of a weakly ionized plasma contained in a narrow gap between two metal cylinders is studied considering non-axisymmetric waves. The case with the applied magnetic field in the azimuthal direction due to a central electrode is t
Autor:
Mahinder S. Uberoi, Jai Prakash Narain
Publikováno v:
Atmospheric Environment (1967). 8:459-473
An analytical study of a trailing vortex-wake in a uniform and a stratified environment is presented. A turbulent entrainment velocity is postulated based on the assumption of similarity of the wake surface and consistent with several averaged conser
Publikováno v:
Physics of Fluids. 28:81-89
A small streamlined axisymmetric intake is placed at various locations on the axis of a large axisymmetric turbulent jet. The ratio of the mean velocity in the intake to that of the ambient fluid is varied from zero to thirteen. The effective diamete
Autor:
Mahinder S. Uberoi, Jai Prakash Narain
Publikováno v:
International Journal of Heat and Mass Transfer. 16:1505-1512
The problem of laminar combined forced and free-convection heat transfer from a vertical thin needle in a variable external stream is considered. The similarity solutions for needles with isothermal walls and needles with uniform wall heat fluxes hav
Autor:
Mahinder S. Uberoi
Publikováno v:
Journal of the Aeronautical Sciences. 23:754-764
The effect of wind-tunnel contraction on free-stream turbulence is determined by passing a well-defined turbulence through three contractions of ratios 4 : 1 , 9 :1 , and 16:1. Turbulent velocity measurements show that, in absolute magnitudes, the lo
Autor:
Mahinder S. Uberoi
Publikováno v:
Journal of Applied Physics. 28:1165-1170
Homogeneous turbulence in which 〈v2〉 = 〈w2〉 ≠ 〈u2〉 was produced experimentally, where 〈u2〉, 〈v2〉, and 〈w2〉 are the mean‐square turbulent velocities in x, y, and z direction, respectively. The decay of turbulence and the en