Results 141 to 150 of about 823 (174)
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Proceedings of the Combustion Institute, 2019
The present study examines, in presence of thermal expansion effects, the existence of the multiplicity of solutions previously reported within the context of diffusive-thermal modeling in [15], for lean premixed flames with low Lewis number (Le???
Vadim N Kurdyumov, Anne Dejoan
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The present study examines, in presence of thermal expansion effects, the existence of the multiplicity of solutions previously reported within the context of diffusive-thermal modeling in [15], for lean premixed flames with low Lewis number (Le???
Vadim N Kurdyumov, Anne Dejoan
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The Milky Way disk non‐axisymmetries and galactoseismology
Astronomische Nachrichten, 2016AbstractCurrent Galactic dynamical models still most often rely on the assumptions of a smooth time‐independent and axisymmetric gravitational potential. On the other hand, ab initio simulations in a cosmological context are not very flexible to precisely produce a model of our own Galaxy, or to disentangle the internal and the external/environmental ...
Famaey, Benoit +2 more
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Axisymmetry and azimuthal modes in jet noise
18th AIAA/CEAS Aeroacoustics Conference (33rd AIAA Aeroacoustics Conference), 2012This paper will show that the matrix of all noise spectra radiated from a jet in a stationary condition, axisymmetric in construction and boundary conditions, has a special invariant structure which simpli es measurements and enables the total composite noise eld to be expressed as a sum of mutually incoherent partial elds.
Håvard Vold +4 more
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Imperfect axisymmetry in the Tokamak Configuration
Nuclear Fusion, 1972In real experimental tokamaks the necessity for access space between toroidal field coils spoils the ideal axisymmetry of the configuration. The "ripple" in toroidal field strength (typically a few percent) causes non-symmetric trapping of particles; the resultant drift orbits generally lead to the wall.
O.A. Anderson, H.P. Furth
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Incompressibility and axisymmetry: A modified B method
Communications in Numerical Methods in Engineering, 1994AbstractThe paper deals with a B‐type strain projection method with specific reference to axisymmetric incompressible solids. Essentially the \documentclass{article}\pagestyle{empty}\begin{document}$ \overline{\overline {\rm{B}}} $\end{document} (B double bar) method, which is reported in the present study, is based on Hughes' B‐bar approach utilizing ...
Ashoka G. K. Jinka, Roland W. Lewis
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Statistical axisymmetry of the turbulent sphere wake
Experiments in Fluids, 2014The turbulent sphere wake is studied experimentally at $${Re}=1.9\,10^4$$ using an axisymmetric support that holds the body from upstream. This setup allows the axisymmetry of the mean wake and preserves the
M. Grandemange, M. Gohlke, O. Cadot
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Role of Dimensionality and Axisymmetry in Fluid Pinch-Off and Coalescence
Physical Review Letters, 2007We present data on the pinch-off and coalescence of thin liquid alkane lenses floating on water. Pinch-off in quasi-2D lenses is distinctly different from pinch-off in axisymmetric 3D drops and involves a cascade of satellite droplets which extends to micron length scales. In contrast, coalescence of lenses is qualitatively similar to coalescence of 3D
J C, Burton, P, Taborek
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Breaking of axisymmetry and onset of unsteadiness in the wake of a sphere
Journal of Fluid Mechanics, 2000The primary and secondary instabilities of the sphere wake are investigated from the viewpoint of nonlinear dynamical systems theory. For the primary bifurcation, a theory of axisymmetry breaking by a regular bifurcation is given. The azimuthal spectral modes are shown to coincide with nonlinear modes of the instability, which provides a good ...
Ghidersa, Brăduţ, Dušek, Jan
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Reducing the non-axisymmetry of a planetary dynamo and an application to saturn
Geophysical & Astrophysical Fluid Dynamics, 1982If a conducting fluid shell is undergoing spin-axisymmetric differential rotation and overlies the dynamo generating region of a planet then it is capable of greatly reducing the non-spin-axisymmetric components of the generated field, provided the appropriate magnetic Reynolds number is large.
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Stationary axisymmetry electromagnetic fields in the Kerr metric
Journal of Physics A: Mathematical and General, 1979A procedure for calculating the Debye potential corresponding to a stationary axisymmetric distribution of charges and currents in the Kerr metric is given. The electromagnetic potential is derived by differentiation. The potential of a point charge on the symmetry axis and the value of the charge resulting from the accretion in the case of a charged ...
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