On the thermal shock wave induced by a moving heat source

Journal Article · Mon May 01 04:00:00 EDT 1989 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3250667· OSTI ID:6064397

Tzou, D Y ^[1]

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1. Univ. of New Mexico, Albuquerque (United States)

Analytical solutions for the temperature field around a moving heat source in a solid with finite speed of heat propagation are obtained via the method of Green's functions. When the speed of the moving heat source is equal to or faster than that of the thermal wave propagated in the solid, the thermal shock wave is shown to exist in the thermal field. The shock wave angle is obtained as sin{sup {minus}1} (1/M) for M {ge} 1. Orientation of crack initiation in the vicinity of the heat source is also estimated by considering the temperature gradient T,{sub {theta}} along the circumference of a continuum circle centered at the heat source. Such an orientation is established as a function of the thermal Mach number in the subsonic, transonic, and supersonic regimes, respectively.

• OSTI ID: 6064397
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 111:2; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CALCULATION METHODS
CRACK PROPAGATION
CRACKS
ENERGY TRANSFER
FUNCTIONS
GREEN FUNCTION
HEAT SOURCES
HEAT TRANSFER
MACH NUMBER
MATHEMATICS
MOTION
NUMERICAL ANALYSIS
SHOCK WAVES
TEMPERATURE DISTRIBUTION
THERMAL CONDUCTION
VELOCITY
WAVE PROPAGATION