A study of the temporal stability of multiple cell vortices
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A study of the temporal stability of multiple cell vortices

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Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, For sale by the National Technical Information Service] in [Washington, D.C.], [Springfield, Va .
Written in English


  • Vortex-motion

Book details:

Edition Notes

StatementMehdi R. Khorrami.
SeriesNASA contractor report -- 4261., NASA contractor report -- NASA CR-4261.
ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Division., Old Dominion University. Research Foundation., Langley Research Center.
The Physical Object
Pagination207 p.
Number of Pages207
ID Numbers
Open LibraryOL17633169M

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Temporal stability, short- or long-term, surpassed the similarity between individuals, indicating that P. acnes stability likely derives from maintaining an individual’s strains over time and less from the acquisition of new strains from the environment or other by: CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The present study documents in detail the effect of initial mean velocity field on the stability characteristics of longitudinal vortices. The temporal stability of isolated multiple cell vortices is considered. The types of vortices studied in this work include single cell as well as two and three cell vortices. Similarly, combustor design can be improved by accelerating the destruction of vortical flows, which occur typically around fuel injectors, so that improved mixing can occur. Improved understanding of vortex stability and control can facilitate enhanced system performance over a . This study evaluates if the temporal stability concept is applicable to a time series of satellite soil moisture images so to extend the common procedure of satellite image validation. The area of study is the Maqu area, which is located in the northeastern part of the Tibetan plateau. The network serves validation purposes of coarse scale (25–50 km) satellite soil moisture products and.

The most temporally amplified perturbations are given by a classical temporal stability analysis, and such a study was recently carried out for this flow (Leclercq et al. ). It was shown that. Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications “A study of the temporal stability of multiple cell vortices,” NASACR (). Khorrami and C. E. Grosch, “Temporal stability of multiple cell vortices,” AIAA Paper No.   Most recently, extensive simulations (using up to 32 vortices) of the temporal vortex-gas shear layer by SNH 23 S. Suryanarayanan, R. Narasimha, and N. D. Hari Dass, “ Free turbulent shear layer in a point vortex gas as a problem in nonequilibrium statistical mechanics,” Phys. Rev. E 89, (). The solution of the governing equations is applied to 3D data obtained from tomographic PIV and is based on the vortex-in-cell method (Christiansen in J Comput Phys –, ) under the hypothesis of incompressible flow. The principle of time-supersampling is that the spatial information can be leveraged to increase the temporal.

We present a brief overview of the major advances in the study of optical vortices in different types of nonlinear media, with emphasis on the properties of {\em vortex solitons}.   To facilitate the control for the temporal discontinuity in the flow field due to a motion of an immersed body, a fully-implicit time-integration scheme is employed. A novel backward time-integration scheme is developed to effectively treat multiple layers of fresh cells generated by a motion of an immersed body at a high CFL number condition. This work reports a comparative study on piezoelectric energy harvesting from vortex-induced vibration (VIV) with multi-stability characteristics by introducing the nonlinear magnetic forces. A lumped-parameter model for the piezoelectric cantilever-cylinder structure is considered for the sake of qualitative investigation. Firstly, the buckling displacement of harvester in monostable and.   () Numerical study of quantized vortex interaction in complex Ginzburg–Landau equation on bounded domains. Applied Mathematics and Computation , () Convergence analysis of a linearized Crank-Nicolson scheme for the two-dimensional complex Ginzburg-Landau equation.