Adomian Decomposition Method Applied to Study Nonlinear Equations Arising in non-Newtonian flows
2012
Adomian’s decomposition method (ADM) is employed to solve nonlinear differential equations which arise in non-Newtonian fluid dynamics. We study basic pipe flow problems of a third grade and 6-constant Oldroyd non-Newtonian fluids. The technique of Adomian decomposition is applied with elegant results. The solutions obtained show the reliability and efficiency of this analytical method. Numerical solutions are also obtained by solving nonlinear ordinary differential equations using Chebyshev spectral method. We present a comparative study of the analytical and numerical solutions. The analytical results agree well with the numerical results, which reveal the effectiveness and convenience of the Adomian decomposition method.
Keywords:
- Fluid dynamics
- Adomian decomposition method
- Ordinary differential equation
- Decomposition method (constraint satisfaction)
- Mathematical optimization
- Chebyshev filter
- Differential equation
- Nonlinear system
- Mathematical analysis
- Mathematics
- Spectral method
- nonlinear differential equations
- Non-Newtonian fluid
- Pipe flow
- chebyshev spectral method
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