ON OPTIMAL NOZZLE SHAPES OF GAS-DYNAMIC LASERS
Pontryagin's principle is used to study the shape of the supersonic part of the nozzle of a carbon dioxide gas-dynamic laser whose gain is maximal. The exact shape is obtained for the uncoupled approximation of Anderson's bimodal model. In this case, if sharp corners are allowed, the ceili...
Saved in:
| Format: | Article |
|---|---|
| Language: | English |
| Published: |
University of Tehran
1996-09-01
|
| Series: | Journal of Sciences, Islamic Republic of Iran |
| Online Access: | https://jsciences.ut.ac.ir/article_31121_f81585fc50858d4554b03a90f0110263.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Pontryagin's principle is used to study the shape of the supersonic part of the nozzle
of a carbon dioxide gas-dynamic laser whose gain is maximal. The exact shape is
obtained for the uncoupled approximation of Anderson's bimodal model. In this case,
if sharp corners are allowed, the ceiling of the supersonic part consists of a slant
rectangular sheet followed by a horizontal one; otherwise, a parabolic cylinder joins
the two sheets smoothly. Pontryagin's principle reduces the optimal control problem
to a multifactor optimal problem of the types treated by S.A. Losev, V.N. Makarov,
N.M. Reddy, and V. Shanmugasundaram |
|---|---|
| ISSN: | 1016-1104 2345-6914 |