NONSTATIONARY TEMPERATURE FIELDS IN AN ISOTROPIC HALF-SPACE 
UNDER MIXED BOUNDARY CONDITIONS CHARACTERISTIC 
OF TECHNOLOGIES OF LASER THERAPY IN MEDICINE

V. P. Kozlov and P. A. Mandrik

UDC 517.968,536.24

For the first time, the solution of the heat-conduction 
equation with mixed boundary conditions (BCs) is obtained as applied 
to the model of an isotropic nontransparent half-space, whose surface 
z = 0 is heated through the circular region of radius r = R 
with a heat-flux density characteristic of a laser heat source, while 
outside of the circle of  r > R and z = 0 there occurs intense 
cooling at the value of the heat-transfer coefficient  = .

JEPTER7492020003
JEPTER749203