ISSN:
1432-2153
Keywords:
Key words:Laser schlieren, Shock wave structure, Ill-posed problem, Regularization method
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
,
Technology
Notes:
Abstract. Using a diffraction approach the convolution-type integral equation for the laser schlieren signal created by an arbitrary disturbance at low pressure, where refractive index of disturbance is close to unity, in a shock tube (thin optical layer) has been deduced. In the equation electric circuit relaxation processes were taken into account by a response function. The equation was solved with the aid of the regularization method worked out for ill-posed problems. The density structures of the strong shock waves in air have numerically been reconstructed from experimental data ranging shock wave Mach number of $M_s=20$ –30, and $P_0=10$ –30 Pa.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001930050112
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