Vortex liquid piston engine and some other vortex technologies

M. Goldshtik, F. Hussain, R. J. Yao

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


By exploiting three unique characteristics of confined swirling incompressible flows - centrifugal acceleration, internal separation or recirculation zones near the axis, and bistability (i.e. rarefied and condensed stable states) of multi-phase flows - we developed several innovative vortex machines which will revolutionize mechanical technologies in a variety of industries. The machines utilizing these features include: Vortex Engine, Vortex Thruster, Vortex Suction Device, Vortex Chemical Reactor, Bubbling Centrifuge and Vortex Mill. As a specific example, we describe here in some detail the development of a liquid piston engine, including analysis of its hydrodynamic and thermodynamic features. We have designed a laboratory `cold' model and performed detailed experimental, theoretical and numerical analyses to study the role of the controlling parameters and are now ready to test a `hot' model. In addition, we mention a few other vortex technologies of interest to us.

Original languageEnglish (US)
Pages (from-to)323-367
Number of pages45
JournalSadhana - Academy Proceedings in Engineering Sciences
Issue numberpt 3
StatePublished - 1997

ASJC Scopus subject areas

  • General


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