Benha University

Mohamed Reda Ali Mohamed

Asst. Professor

Faculty of Engineering, Benha Basic Sciences

Lie symmetry analysis and invariant solutions of 3D Euler equations for axisymmetric, incompressible, and inviscid flow in the cylindrical coordinates

Advances in Difference Equations • 2021
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Publication Information
Authors R. Sadat, Praveen Agarwal, R. Saleh & Mohamed R. Ali
Keywords Euler equations; Axisymmetric flow; Lie point symmetries; Analytical solutions
Journal Advances in Difference Equations
Publisher springer
Volume 2021
Issue 486
Pages 1-16
publication.type International
Paper Link Open Link
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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