THE ASYMPTOTIC SOLUTIONS FOR BOUNDARY VALUE PROBLEM TO A CONVECTIVE DIFFUSION EQUATION WITH CHEMICAL REACTION NEAR A CYLINDER.
Keywords:
CONVECTIVE DIFFUSION EQUATION, THE METHOD OF MATCHED ASYMPTOTIC EXPANSIONS, THE DIFFUSION BOUNDARY LAYER, THE SADDLE POINT, THE STREAM FUNCTION, QUASILINEAR PARABOLIC DEGENERATE EQUATION, THE STABILITY CONDITION FOR DIFFERENCE SCHEME.Abstract
THE WORK DEALS WITH A BOUNDARY VALUE PROBLEM FOR A QUASILINEAR PARTIAL ELLIPTICAL EQUATION. THE EQUATION DESCRIBES A STATIONARY PROCESS OF CONVECTIVE DIFFUSION NEAR A CYLINDER AND TAKES INTO ACCOUNT THE VALUE OF A CHEMICAL REACTION FOR LARGE PECLET NUMBERS AND FOR LARGE CONSTANT OF CHEMICAL REACTION. THE QUANTITY THE RATE CONSTANT OF THE CHEMICAL REACTION AND PECLET NUMBER IS ASSUMED TO HAVE A CONSTANT VALUE. THE LEADING TERM OF THE ASYMPTOTICS OF THE SOLUTION IS CONSTRUCTED IN THE BOUNDARY LAYER AS THE SOLUTION FOR THE QUASILINEAR ORDINARY DIFFERENTIAL EQUATION. IN THIS PAPER, WE CONSTRUCT ASYMPTOTIC EXPANSION OF SOLUTIONS FOR A QUASILINEAR PARTIAL ELLIPTICAL EQUATION IN THE BOUNDARY LAYER NEAR THE CYLINDER.
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