NMRI measurements of flow of granular mixtures

Masami Nakagawa, Allen R. Waggoner, Eiichi Fukushima

Research output: Contribution to journalConference articlepeer-review


We investigate complex 3D behavior of granular mixtures in shaking and shearing devices. NMRI can non-invasively measure concentration, velocity, and velocity fluctuations of flows of suitable particles. We investigate origins of wall-shear induced convection flow of single component particles by measuring the flow and fluctuating motion of particles near rough boundaries. We also investigate if a mixture of different size particles segregate into their own species under the influence of external shaking and shearing disturbances. These non-invasive measurements will reveal true nature of convecting flow properties and wall disturbance. For experiments in a reduced gravity environment, we will design a light weight NMR imager. The proof of principle development will prepare for the construction of a complete spaceborne system to perform experiments in space.

Original languageEnglish
Pages (from-to)251-256
Number of pages6
JournalNASA Conference Publication
Issue number3338
Publication statusPublished - Dec 1 1996
Externally publishedYes
EventProceedings of the 1996 3rd Microgravity Fluid Physics Conference - Cleveland, OH, USA
Duration: Jul 13 1996Jul 15 1996

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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