Heat and momentum transfer in laser induced decomposition of silane jets: theory and experiments

Date

1988-11

Author

Akmandor, İbrahim Sinan
Szekely, J.
Haggerty, John S.

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Silicon powders are obtained by laser pyrolysis of silane gas. Temperature and velocity profiles are determined both theoretically and experimentally. The velocimetry consists of a marker technique which measures the propagation time of a perturbation front through the hot reaction zone. In the theoretical model, the coaxial jet expansion undergoing a thermal heating is studied by defining a Dorodnitzin-Illingworth transformation. The results show a decrease of axial velocity as the gas enters the laser heated region. The change is sharper for higher inlet velocities. In this region, the gradients of the axial temperature profiles are high.

Subject Keywords

Mechanical engineering, Condensed matter physics, Fluid flow and transfer processes

URI

https://hdl.handle.net/11511/52028

Journal

International Journal of Heat and Mass Transfer

DOI

https://doi.org/10.1016/0017-9310(88)90156-1

Collections

Department of Aerospace Engineering, Article

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Citation Formats

İ. S. Akmandor, J. Szekely, and J. S. Haggerty, “Heat and momentum transfer in laser induced decomposition of silane jets: theory and experiments,” International Journal of Heat and Mass Transfer, pp. 2239–2249, 1988, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52028.