T
T. S. Lundgren
Researcher at University of Minnesota
Publications - 41
Citations - 3791
T. S. Lundgren is an academic researcher from University of Minnesota. The author has contributed to research in topics: Turbulence & Vortex. The author has an hindex of 23, co-authored 41 publications receiving 3609 citations. Previous affiliations of T. S. Lundgren include Ames Research Center.
Papers
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Journal ArticleDOI
Quasilinear Dirichlet problems driven by positive sources
Daniel D. Joseph,T. S. Lundgren +1 more
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Strained spiral vortex model for turbulent fine structure
TL;DR: In this paper, a model for the intermittent fine structure of high Reynolds number turbulence is proposed, consisting of slender axially strained spiral vortex solutions of the Navier-Stokes equation.
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Nonlinear mechanics of fluidization of beds of spherical particles
TL;DR: In this article, the authors describe a local rearrangement mechanism in which one sphere is captured in the wake of the other, and two local mechanisms are involved: drafting and kissing and tumbling into stable cross stream arrays.
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Oscillations of drops in zero gravity with weak viscous effects
T. S. Lundgren,Nagi N. Mansour +1 more
TL;DR: In this article, the effect of small viscosity is included in the computations by retaining first-order viscous terms in the normal stress boundary condition, which is accomplished by making use of a partial solution of the boundary-layer equations which describe the weak vortical surface layer.
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Nozzleless droplet formation with focused acoustic beams
Scott A. Elrod,B. Hadimioglu,Butrus T. Khuri-Yakub,Eric G. Rawson,Edward A. Richley,Calvin F. Quate,Nagi N. Mansour,T. S. Lundgren +7 more
TL;DR: In this article, focused acoustic beams are used to eject discrete droplets of controlled diameter and velocity from a free liquid surface, and a simple model is used to obtain analytical expressions for the key parameters of droplet formation and their scaling with acoustic frequency.