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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
العودة
معلومات البحث
المؤلفون R. Sadat, Praveen Agarwal, R. Saleh & Mohamed R. Ali
الكلمات المفتاحية Euler equations; Axisymmetric flow; Lie point symmetries; Analytical solutions
المجلة العلمية Advances in Difference Equations
الناشر springer
المجلد 2021
العدد 486
الصفحات 1-16
publication.type International
رابط البحث Open Link
المواد المرفقة Not Available
الملخص
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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