Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-17T14:43:50.118Z Has data issue: false hasContentIssue false
  • English
  • Français

The application of mass spectrometry to the study of mixing processes in confined and unconfined gas flows

Published online by Cambridge University Press:  04 July 2016

E. C. P. Ransom  and
J. H. Barnes
E. C. P. Ransom
Affiliation:
School of Mechanical, Aeronautical and Production Engineering, Kingston Polytechnic
J. H. Barnes
Affiliation:
HMI (Further and Higher Education), Department of Education and Science
Get access Rights & Permissions [Opens in a new window]

Summary

This paper describes a novel flow tracing technique which has been developed to obtain data on mixing and dispersion processes in gaseous flow systems. Tracer gas is injected at low flow rates into an air stream. Choice of tracer gas — primary fluid combination in relation to gas properties and detection techniques is discussed. The mode of operation of the mass spectrometer is described together with the sampling system. Analysis of samples drawn from the flow field provides tracer gas concentration profiles throughout the flow and these may be used to yield information on mixing rates. Two examples are given which illustrate the use of the method.

Type
Research Article
Information
The Aeronautical Journal , Volume 90 , Issue 892 , February 1986 , pp. 53 - 62
Copyright
Copyright © Royal Aeronautical Society 1986 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Ransom, E. C. P. and Wood, P. M. Jet interference literature survey and critical review. Prepared for procurement executive, Ministry of Defence. Contract No AT/2055/04SRA. Kingston Polytechnic Report. TFAR 75/1/ER. June 1975.Google Scholar
2. Ransom, E. C. P. and Wood, P. M. A literature survey on jets in crossflow. Paper 26, AGARD Conference No 143 on V/STOL Aerodynamics. FDP Symposium, Delft, April 1974.Google Scholar
3. Quadrupole mass spectrometry, Technical Information Leaflet No 02.439. VG-Quadrupoles Ltd. Winsford, Cheshire. 2nd Edition 1978.Google Scholar
4. Millard, B. J. Quantitative mass spectrometry. Heyden 1978.Google Scholar
5. Ransom, E. C. P., Barnes, J. H. and Phipps, P. D. An investigation into jet entrainment using a tracer gas technique. Progress Report TFAR 77/1/ER. Presented to Jet Entrainment Working Party, 3rd Meeting, University of Surrey 1977.Google Scholar
6. Patrick, M. A. PhD Thesis. University of Sheffield, 1965.Google Scholar
7. Patrick, M. A. Experimental investigations of the mixing and penetration of a round turbulent jet injected perpendicularly into a transverse stream. Trans Inst Chem Eng. Vol 45-1967.Google Scholar
8. Kay, G. W. C. and Laby, T. H. Tables of physical and chemical constants. Longmans 14th ed. 1972.Google Scholar
9. Weast, C. R. CRC Handbook of chemistry and physics. Chemical Rubber Company 58th ed. 1978.Google Scholar
10. Gray, D. E. (ed). American Institute of Physics handbook. American Institute of Physics 1978.Google Scholar
11. Phipps, P. D. An investigation into streamline mixing in constrained laminar and turbulent axisymmetrical flow using a mass spectrometer — tracer gas analysis. MPhil Thesis. King ston Polytechnic, June 1981.Google Scholar
12. Ransom, E. C. P., Barnes, J. H. and Phipps, P. D. An experimental investigation of the dispersion of a gas jet in a co-flowing stream of air. Proc of 2nd International Conference on Numerical Methods in Laminar and Turbulent Flow Venice. Pineridge Press, July 1981.Google Scholar
13. Ransom, E. C. P. and Barnes, J. H. The calculation of jet interference pressure distribution using integral and numerical methods based on actual measurement of entrainment. Paper 31, AGARD Conference No 308 on fluid dynamics of jets with applications to V/STOL. FDP Symposium Lisbon, November 1981.Google Scholar
14. Barnes, J. H. and Ransom, E. C. P. Application of the tracer gas/mass spectrometer technique to jet entrainment measurement and jet interference calculations. Presented to Jet Entrainment Working Party. 4th Meeting at Kingston Polytechnic. November 1979.Google Scholar
15. Phipps, P. D. The development of the tracer gas/mass spectro meter technique for the measurement of molecular and momentum diffusion. Presented to the Jet Entrainment Working Party. 4th Meeting at Kingston Polytechnic, November 1979.Google Scholar
16. Mayson, I., Ogilvie, F. B. and Harris, K. D. An investigation under static external flow conditions of the axial force induced on circular flat plates surrounding simple uniform and coaxial jets exhausting normally to the plates. British Aero space Ltd, Hatfield Research/1010/IM/FBO/KDH, December 1971.Google Scholar