What are Initial Conditions and How Do You Write Them for the 2D Wave Equation?

In summary, initial conditions are the starting values of a system or process that are used in mathematical models and equations to describe its behavior over time. These values are assigned to relevant variables and parameters and may need to be specified as a range if they change over time.
  • #1
RealKiller69
11
1
Homework Statement
The statement of the problem is as follows: A square drum with side L=1 is at rest until two drops falls over it . The wave propagation veclocity is c=1m/s.The drops injects E=0.01J into the system at t_0=0 s. The boundry conditions are Neuman's.

The problem im having is with the initial form of the drums membrane. How should i write the initial conditions( visually the grid points where the drops impacts should elevate a little bit ( it can be thought of dirac delta ) and then the wave will propagate from both ends ) knowing the integral form of the energy???+
The problem asks for the form of the membrane after 2 seconds, this should be quite easy if I can write the initial conditions.
Relevant Equations
Wave equation
I am having problems writing the initials conditions.
IMG_20210508_190005.jpg
 
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  • #2
Initial conditions are the starting values of a system or process at a given time. They are typically used in mathematical models and equations to describe the behavior of a system or process over time. In order to write the initial conditions for a given system or process, you must first identify the relevant variables and parameters that need to be specified. Once these are identified, you can then assign specific values to each of them. If the variables and parameters change over time, you may need to specify a range of values for each variable or parameter.
 

1. What is the Discrete 2D wave equation?

The Discrete 2D wave equation is a mathematical model that describes the propagation of waves in a two-dimensional space. It is a discrete version of the traditional wave equation, which is a partial differential equation.

2. How is the Discrete 2D wave equation different from the traditional wave equation?

The Discrete 2D wave equation differs from the traditional wave equation in that it uses discrete values for time and space, rather than continuous values. This allows for a more accurate representation of wave behavior in digital simulations.

3. What are the applications of the Discrete 2D wave equation?

The Discrete 2D wave equation has many applications in fields such as acoustics, electromagnetics, and fluid dynamics. It is commonly used in computer simulations to model the behavior of waves in these systems.

4. How is the Discrete 2D wave equation solved?

The Discrete 2D wave equation is typically solved using numerical methods, such as finite difference methods or finite element methods. These methods involve discretizing the equation and solving it iteratively to obtain a numerical solution.

5. What are the limitations of the Discrete 2D wave equation?

Like any mathematical model, the Discrete 2D wave equation has its limitations. It assumes that the medium in which the waves propagate is homogeneous and isotropic, and it does not take into account factors such as dissipation and dispersion. Additionally, it may not accurately model certain types of waves, such as nonlinear or dispersive waves.

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