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Information Teaching Model of Preschool Art Education in Colleges and Universities Based on Finite Element Higher-Order Fractional Differential Equation


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Fig. 1

Relationship between CPU time consumed by DFD and FFD and time step in log-log coordinates
Relationship between CPU time consumed by DFD and FFD and time step in log-log coordinates

Fig. 2

Mass and time evolution diagram of one-dimensional time-fractional Allen-Calm equation
Mass and time evolution diagram of one-dimensional time-fractional Allen-Calm equation

Fig. 3

Phase function of two-dimensional time-fractional Allen-Calm equation and change of energy with time
Phase function of two-dimensional time-fractional Allen-Calm equation and change of energy with time

L2 error of numerical solutions obtained by DFD and FFD when Δt = 2−16 and α = 0.7 are fixed

FFD DFD
N E(ht) Cov CPU (s) E(ht) Cov CPU (s)
25 3.4024e−04 2.00 6.69 3.4024e−04 2.00 2652.36
26 8.4964e−05 2.01 10.16 8.4964e−05 2.01 2822.55
27 2.1146e−05 2.02 36.31 2.1146e−05 2.02 3140.38
28 5.2182e−06 - 103.89 5.2182e−06 - 3651.16

L2 error and corresponding spatial convergence order of finite difference decomposition at Δt = 2−16

N α = 0.2E(ht) Cov α = 0.5E(ht) Cov α = 0.8E(ht) Cov
25 4.3385e−04 1.98 3.8225e−04 2.00 3.1800e−04 1.99
26 1.1000e−04 1.92 9.5800e−05 1.99 7.9804e−05 1.98
27 2.9043e−05 1.72 2.4189e−05 1.94 2.0254e−05 1.91
28 8.8305e−06 6.3168e−06 5.3865e−06

L2 error and corresponding time convergence order of finite difference decomposition at h = 2−12

M α = 0.2E(ht) Cov α = 0.5E(ht) Cov α = 0.8E(ht) Cov
25 3.4200e−03 0.77 2.0717e−03 1.03 7.8969e−03 1.21
26 2.0022e−03 0.90 1.0116e−03 1.06 3.4059e−03 1.22
27 1.0715e−03 0.90 4.8658e−04 1.06 1.4612e−03 1.23
28 5.5260e−04 2.3374e−04 6.2398e−04
eISSN:
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Language:
English
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Life Sciences, other, Mathematics, Applied Mathematics, General Mathematics, Physics