Effect of damping on variable added mass and lift of circular cylinders in vortex-induced vibrations
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Garcia, Elizabeth M. H.↗
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Results for “vortex”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Theory and simulations on strong pinning of vortex lines by nanoparticles
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Koshelev, A. E.↗
Infrared vortex-state electrodynamics in type-II superconducting thin films
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Xi, Xiaoxiang↗
Model of random center vortex lines in continuous 2 + 1 -dimensional spacetime
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Altarawneh, Derar↗
Lattice-Rotation Vortex at the Charged Monoclinic Domain Boundary in a Relaxor Ferroelectric Crystal
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Shao, Yu-Tsun↗
Separation measurements in binary species gaseous vortex flows and flow visualization studies in a water vortex
Gaseous fission reactor propulsion - fluid dynamics, binary separation, and flow visualization studies
FLOW VISUALIZATION↗
Unsteady hybrid vortex technique for transonic vortex flows and flutter applications
The well developed surface panel method is extended by adding a volume integral term allowing calculation of the full effect of compressibility. The full effect of compressibility is calculated by using mixed type finite difference scheme consistent with the mixed nature of transonic flow. The solution is obtained through successive iteration cycles for subcritical flows and for critical flows the solution is obtained through satisfying the Rankine-Hugoniot relations across the captured shock in addition to the captured shock. The method is applied to airfoils in subcritical and critical flows and the results are in good agreement with the experimental data and finite-difference solutions of the full-potential and Euler equations.
Kandil, Osama A.↗
Unsteady hybrid vortex technique for transonic vortex flows and flutter application
Papers resulting from work performed from January 1, 1987 to July 31, 1987 are listed. Transonic computational schemes based on Integral Equation Formulation of the full potential equation were presented. Classical and zero-total pressure-loss sets of Euler equations applied to delta wings were examined.
Kandil, Osama A.↗
Effect of vortex core distortion on blade-vortex interaction
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Lee, D. J.↗
Analysis and control of asymmetric vortex flows and supersonic vortex breakdown
The accomplishments which have been achieved in the present year covering the period from Dec. 1, 1991 until Nov. 30, 1992 are given. These accomplishments include publications, national and international presentations, NASA Research Highlights and presentations, and the research group supported under this grant.
Kandil, Osama A.↗