Accession Number : AD0661772

Title :   ON THE THEORY OF FUSION AND BURNING OF A BODY (STEFAN PROBLEM),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Pomerantsev,A. A.

Report Date : 12 APR 1967

Pagination or Media Count : 23

Abstract : A deficiency of the known theories of fusion is the use of a motionless frame of reference, in describing the phenomena, although in reality the boundary condition is expressed by the thermal balance of the fused element of a substance on a moving boundary. For its satisfaction a conclusion is made about the constancy of the arguments of the functions expressing the state of the thermal balance in the region of fusion. It is necessary to note that for the composition of the balance particular solutions, rather than general solutions, are used. In general, it is possible to compose a great number of particular solutions of the problem. Hence one can obtain the same great number from the differential equations and the problem loses the property of singleness. Such uncertainty of the method of solution of the problem impelled the author to search for new methods of its solution.

Descriptors :   (*HEAT OF FUSION, BOUNDARY VALUE PROBLEMS), (*HEAT TRANSFER, BOUNDARY VALUE PROBLEMS), HEAT OF SUBLIMATION, FREEZING, BURNING RATE, PARTIAL DIFFERENTIAL EQUATIONS, PROBABILITY, TEMPERATURE, THERMAL CONDUCTIVITY, BOUNDARY VALUE PROBLEMS, USSR

Subject Categories : Thermodynamics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE