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EQUATION SOLUTION ON DIFFUSION, EQUATION SOLUTION ON VISCOUS FLOW AND RECORDING MEDIUM WITH THESE SOLUTION PROGRAMS RECORDED THEREON
EQUATION SOLUTION ON DIFFUSION, EQUATION SOLUTION ON VISCOUS FLOW AND RECORDING MEDIUM WITH THESE SOLUTION PROGRAMS RECORDED THEREON
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机译:扩散方程式,粘性流方程式和记录介质及其所记录的这些程序
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摘要
PROBLEM TO BE SOLVED: To obtain equation solution on diffusion which can be executed in a short calculation time as a whole and easily develops a program by reconsidering (v), etc., in the next point from quantity (v) depending on the time and space in a prescribed point to repeat it and calculating solution cumulatively in a specified equation. ;SOLUTION: When the value of the expression of dv/dt=A (v,...) in a discrete representative point can be represented approximately as (Veven)-v.D/S by using quantity (v) depending on time and space in the representative point, Veven calculated from the (v) of the representative point of an adjacent periphery, a diffusion coefficient D and a constant S, the situation Vnext of the point i+1 is calculated on the basis of the situation (v) of a point (i). In this step, a procedure that calculates approximation solution obtained by using (a) being quantity obtained by making a variable (v) level along time is applied to all of the points on analysis. Then, the whole operations that calculate a set of vnext and a set of anext from a set of (v) and a set of (a) are repeated by reconsidering vnext and anext as (v) and (a) and solution is cumulatively obtained.;COPYRIGHT: (C)2000,JPO
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