Micro-nozzle model verification through schlieren and IR photography

A. B. Coulter, D. G. Plumlee, A. J. Moll, R. Budwig

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Research in the use of ceramics to manufacture micro-propulsion devices is being conducted at Boise State University. These devices consist of a sub-millimeter supersonic nozzle and a catalyst chamber. A solution of 85% pure hydrogen peroxide is pumped into the chamber, which is lined with silver metal. The silver catalyst reacts with the hydrogen peroxide, which is then emitted through the nozzle as a high temperature gas. The current nozzle dynamics testing is being done using nitrogen gas for safety purposes. Using schlieren and IR photography it is possible to image the gas output of the nozzles for comparison with the CFD and thermal models used in the nozzle design. Schlieren photography for comparison of shock cell shape and separation of model data versus experimental data will provide verification of our CFD models. Schlieren imagery is based on the refraction of light caused by changes in the density of the medium through which it passes. This method provides a black and white image of the emitted gases. During hydrogen peroxide testing we will use IR photography to analyze the temperature gradients of both the emitted gases and the outer walls of the catalyst chamber. This data will be compared to models of the expected temperature gradients.

Original languageEnglish
Title of host publicationInternational Microelectronics and Packaging Society - 3rd IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2007
Pages312-314
Number of pages3
StatePublished - 2007
Event3rd International Conference on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2007 - Denver, CO, United States
Duration: 23 Apr 200726 Apr 2007

Publication series

NameInternational Microelectronics and Packaging Society - 3rd IMAPS/ACerS International Conference and Exhibition on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2007

Conference

Conference3rd International Conference on Ceramic Interconnect and Ceramic Microsystems Technologies, CICMT 2007
Country/TerritoryUnited States
CityDenver, CO
Period23/04/0726/04/07

Keywords

  • IR photography
  • Micro-nozzle
  • Micro-propulsion
  • Schlieren

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