Variable-density jet flows induced by concentrated sources of momentum and energy

Variable-density jet flows induced by concentrated sources of momentum and energy

The planar and axisymmetric variable-density flows induced in a quiescent gas by a concentrated source of momentum that is simultaneously either a source or a sink of energy are investigated for application to the description of the velocity and temperature far fields in laminar gaseous jets with either large or small values of the initial jet-to-ambient temperature ratio. The source fluxes of ...

A detailed quantitative analysis of sparse-Lagrangian filtered density function simulations in constant and variable density reacting jet flows

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Flows of Mass , Momentum and Energy in the Solar

This work is dedicated to the study, in the framework of known models of coronal loops, of cold long loops observed in several spectral lines by SOHO. In particular an observation made by SOHO/CDS in the O V (629.73 A) line show a very high speed ow along a loop. The comparison with steady state siphon ow loop models leads to the conclusion that such loop cannot be in steady state; in particula...

Experimental Studies of Inverted - Profile Coaxial Jet Flows

Energy and momentum density of thermal gluon oscillations

In the exact propagator for finite temperature gluons the location of the transverse and longitudinal poles in the gluon propagator are unknown functions of wave vector: ωT (k) and ωL(k). The residues of the poles, also unknown, fix the normalization of the one gluon vector potential and thus of the field strength. The naive energy density ~ E · ~ D + ~ B · ~ H is not correct because of dispers...