Fluid Mechanics and Transport Phenomena

Simulation of thermophysical flow in axisymmetric nozzle with expansion chamber

  1. Satoru Yamamoto*,
  2. Ryo Matsuzawa,
  3. Takashi Furusawa

Article first published online: 28 DEC 2010

DOI: 10.1002/aic.12482

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 10, pages 2629–2635, October 2011

Additional Information

How to Cite

Yamamoto, S., Matsuzawa, R. and Furusawa, T. (2011), Simulation of thermophysical flow in axisymmetric nozzle with expansion chamber. AIChE J., 57: 2629–2635. doi: 10.1002/aic.12482

Author Information

  1. Dept. of Computer and Mathematical Sciences, Tohoku University, Sendai 980-8579, Japan

*Dept. of Computer and Mathematical Sciences, Tohoku University, Sendai 980-8579, Japan

Publication History

  1. Issue published online: 9 SEP 2011
  2. Article first published online: 28 DEC 2010
  3. Accepted manuscript online: 2 NOV 2010 02:48PM EST
  4. Manuscript Revised: 20 OCT 2010
  5. Manuscript Received: 31 AUG 2010

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Keywords:

  • numerical simulation;
  • axisymmetric nozzle;
  • free-jet expansion;
  • supercritical fluids;
  • nonequilibrium condensation

Abstract

Axisymmetric nozzle flows with a free-jet expansion are simulated considering several substances and several flow conditions, and the thermophysical properties in the nozzle and the free-jet region are predicted. The present numerical method is based on the preconditioning method developed by Yamamoto and the mathematical models of thermophysical properties of the substances. As numerical examples show, gas flows of carbon dioxide, water, and nitrogen under a subcritical pressure condition are first calculated. Calculated distances to the Mach disk are compared with the experimental results, and also the density distributions are compared among these three substances. Second, carbon dioxide flows while changing the pressure from subcritical to supercritical values are calculated and the effect of pressure on the flow field is investigated. Third, flows of water vapor with and without nonequilibrium condensation are calculated and the effect of condensation on the flow field is investigated. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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