95/01839 Finite-difference method of incompressible flows with rotation and moving boundary in a nonstaggered grid

1995 ◽  
Vol 36 (2) ◽  
pp. 125
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Moving Boundary ◽  
Incompressible Flows

scholarly journals Simulation of lid-driven cavity with top and bottom moving boundary conditions using implicit finite difference method and staggered grid

2018 ◽  
Author(s):  
Endang Mawarsih ◽  
Eko Prasetyo Budiana ◽  
Kumara Ari Yuana ◽  
Indarto ◽  
Samsul Kamal ◽  
...  
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Boundary Conditions ◽  
Difference Method ◽  
Moving Boundary ◽  
Staggered Grid ◽  
Driven Cavity ◽  
Implicit Finite Difference ◽  
Implicit Finite Difference Method

A finite difference method with meshless interpolation for incompressible flows in non-graded tree-based grids

2019 ◽  
Vol 396 ◽  
pp. 848-866 ◽  
Author(s):  
F.S. Sousa ◽  
C.F. Lages ◽  
J.L. Ansoni ◽  
A. Castelo ◽  
A. Simao
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Incompressible Flows

Simulation of Rapid Heating in Fusion Reactor First Walls Using the Green’s Function Approach

1984 ◽  
Vol 106 (3) ◽  
pp. 486-490 ◽  
Author(s):  
A. M. Hassanein ◽  
G. L. Kulcinski
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Green’S Function ◽  
Green's Function ◽  
Difference Method ◽  
Moving Boundary ◽  
Rapid Heating ◽  
High Energy ◽  
Advantages And Disadvantages ◽  
The Finite Difference Method

The solution of the heat conduction probem in moving boundary conditions is very important in predicting accurate thermal behavior of materials when very high energy deposition is expected. Such high fluxes are encountered on first wall materials and other components in fusion reactors. A numerical method has been developed to solve this problem by the use of the Green’s function. A comparison is made between this method and a finite difference one. The comparison in the finite difference method is made with and without the variation of the thermophysical properties with temperature. The agreement between Green’s function and the finite difference method is found to be very good. The advantages and disadvantages of using the Green’s function method and the importance of the variation of material thermal properties with temperature are discussed.

scholarly journals The Hybrid Finite Difference and Moving Boundary Methods for Solving a Linear Damped Nonlinear Schrödinger Equation to Model Rogue Waves and Breathers in Plasma Physics

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Alvaro H. Salas ◽  
S. A. El-Tantawy ◽  
Jairo E. Castillo H.
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Schrödinger Equation ◽  
Plasma Physics ◽  
Difference Method ◽  
Schrodinger Equation ◽  
Moving Boundary ◽  
Rogue Waves ◽  
Nonlinear Schrodinger Equation ◽  
Time Interval

In this paper, the dissipative and nondissipative modulated pulses such as rogue waves (RWs) and breathers (Kuznetsov-Ma breathers and Akhmediev breathers) that can exist and propagate in several fields of sciences, for example, plasma physics, have been analyzed numerically. For this purpose, the fluid dusty plasma equations with taking the kinematic dust viscosity into account are reduced to the linear damped nonlinear Schrödinger equation using a reductive perturbation technique. It is known that this equation is not integrable and, accordingly, does not have analytical solution. Thus, for modelling both dissipative RWs and breathers, the improved finite difference method is introduced for this purpose. It is found that FDM is a good numerical technique for small time interval but for large time interval it becomes sometimes unacceptable. Therefore, to describe these waves accurately, the new improved numerical method is considered, which is called the hybrid finite difference method and moving boundary method (FDM-MBM). This last and updated method gives an accurate and excellent description to many physical results, as it was applied to the dust plasma results and the results were good.

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