J
James D. Iversen
Researcher at Iowa State University
Publications - 66
Citations - 3671
James D. Iversen is an academic researcher from Iowa State University. The author has contributed to research in topics: Wind tunnel & Saltation (geology). The author has an hindex of 28, co-authored 66 publications receiving 3495 citations.
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Proceedings ArticleDOI
Merging of aircraft trailing vortices
TL;DR: In this article, a merging-distance criterion for equal-strength corotational vortices is derived from low-turbulence wind-tunnel flow-visualization data, and vortex separation distance is normalized by defining a vortex core diameter based on circulation defect and angular-momentum defect.
Proceedings ArticleDOI
Hot-wire, laser anemometer and force balance measurements of cross-sectional planes of single and interacting trailing vortices
TL;DR: In this article, single and multiple trailing vortices shed from semi-span wings and a transport model in a wind tunnel were studied by means of a laser-velocimeter, hot-wire anemometer, and a trailing model incorporating a 6-component force balance.
Radar-Aeolian Roughness Project.
Ronald Greeley,Anthony R. Dobrovolskis,L. R. Gaddis,James D. Iversen,Nicholas Lancaster,Rodman N. Leach,K. Rasnussen,Stephen Saunders,Jakob J. Vanzyl,Steven Wall +9 more
TL;DR: In this paper, the authors established an empirical relationship between measurements of radar, aeolian, and surface roughness on a variety of natural surfaces and to understand the underlying physical causes.
Proceedings ArticleDOI
Computational studies of turbulent merger of corotational vortices
Pradeep Raj,James D. Iversen +1 more
TL;DR: In this article, a computational study has been conducted to gain a better understanding of the criteria governing the merger of corotating vortices, and a model appropriate for swirling flow under consideration has been proposed to prescribe the algebraic variation of mixing-length in the flow field.