LIMITED-PROJECTION LASER TOMOGRAPHY
OF COMBINED GASDYNAMIC FLOWS

E. A. Lavinskaya,a S. Martemianov, b  
J.-B. Saulnier, b  and N. A. Fomina 

UDC 535.36

The process of reconstruction of local parameters of combined 
flows from the data of limited-projection integral measurements with 
the use of the inverse Radon transform has been simulated numerically. 
Particular emphasis has been placed on the digital modification of 
the so-called speckle tomography making it possible to record with 
the highest degree of accuracy the initial data on the angles of deflection 
of laser radiation probing the medium. The errors of such a reconstruction 
have been computed and analyzed. It has been shown that reconstruction 
of only relatively simple flows with a comparatively low asymmetry 
is possible when the number of projections is no larger than four.

a A. V. Luikov Heat and Mass 
Transfer Institute, National Academy of Sciences of Belarus, 15 P. 
Brovka Str., Minsk, 220072, Belarus; email: fomin@hmti.ac.by; 
b Higher National School of Mechanics and Aerodynamics, 
Poitier, France. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 
77, No. 5, pp. 94-104, September-October, 2004. Original article 
submitted September 24, 2003; revision submitted December 23, 2003.