2D Wave Equation With Initial Conditions and Disk Deformity. about deepxde HOT 4 OPEN

What is gaussian_wave() and func_zero_IC? Remember the function must take a tensor a return a tensor.

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@praksharma Hey, This is

def func_zero(X):
    return np.zeros((len(X),1))

def func_zero_IC(X):
    return np.zeros((len(X),1))

def gaussian_wave(x,y):
    return torch.exp(-0.5* (((x-0)/0.3)**2 + ((y-0)/0.3)**2))  

These conditions fit well, the only problem is with this condition:

dt_IBC0 = dde.NeumannBC(geomtime,func_zero_IC,boundary_initial_dt)

Regards
Hannan

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The use of dde.NeumannBC looks good in the first code. But I don't really understand your second code.

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Hey, thanks for your response @lululxvi . Can you please mention the second code that you are referring to here ?

If you mean this one;

disk_domain = dde.geometry.Disk([7, 7], 2)
geom = geom - disk_domain

circle = dde.NeumannBC(geomtime, func_zero, boundary_circle)


def boundary_circle(x, on_boundary):
    #centre (4, 1), radius 0.3disk_domain.on_boundary(x[1]) 
    return on_boundary and disk_domain.on_boundary(x[1]) and disk_domain.on_boundary(x[0]) 

Here my goal is to first create rectangle, then remove a circle / disk from it. Which would be to depict a fracture / crack in the media. And then study the behaviour of wave when it hits that part. So basically the aim here is to create a reflective condition on the boundary of this circle. Can you please tell me if my approach here is right or not ?

Regards
Hannan

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