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Dr. Mohamed Reda Ali Mohamed :: Publications:

Title:
Lie symmetry analysis and invariant solutions of 3D Euler equations for axisymmetric, incompressible, and inviscid flow in the cylindrical coordinates
Authors: R. Sadat, Praveen Agarwal, R. Saleh & Mohamed R. Ali
Year: 2021
Keywords: Euler equations; Axisymmetric flow; Lie point symmetries; Analytical solutions
Journal: Advances in Difference Equations
Volume: 2021
Issue: 486
Pages: 1-16
Publisher: springer
Local/International: International
Paper Link:
Full paper Not Available
Supplementary materials Not Available
Abstract:

Through the Lie symmetry analysis method, the axisymmetric, incompressible, and inviscid fluid is studied. The governing equations that describe the flow are the Euler equations. Under intensive observation, these equations do not have a certain solution localized in all directions (r,t,z) due to the presence of the term 1r, which leads to the singularity cases. The researchers avoid this problem by truncating this term or solving the equations in the Cartesian plane. However, the Euler equations have an infinite number of Lie infinitesimals; we utilize the commutative product between these Lie vectors. The specialization process procures a nonlinear system of ODEs. Manual calculations have been done to solve this system. The investigated Lie vectors have been used to generate new solutions for the Euler equations. Some solutions are selected and plotted as two-dimensional plots.

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