A computational model for a regenerator

摘要: This paper concerns a numerical model of regenerator running at very low temperatures. The consists the usual three equations for compressible fluid with an additional equation matrix temperature. main difficulty is Mach number (approximately 1.E-3). divergence velocity not small, pressure and fluctuation in time small. An asymptotic expansion based on bounded derivative method Kreiss used to give reduced which eliminates acoustic waves. then determined by two-point boundary value problem does contain derivative. solution obtained from system compared original system.