Acoustic Horn Design – The Easy Way (Ath4)

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#9,181
I would highly doubt that. I think we are thrown back on the numerical approach here. Which is fine, it works.

One of the nice things about this all-in-one description is the ultimate/intrinsic smoothness of the whole curve. You don't have to care about that anymore.
 
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#9,182
Oops, I forgot to re-normalize the parameters - here it's correct + the core of a gnuplot code.

Code: 
k1 = r0*r0
k2 = 2*r0*tan(a0)
k3 = (R*R - k1 - k2*L)/(L*L)
x0 = sqrt(r*r + (s*m*L)**2)

y1(l) = R + u - sqrt(u*u + k3*(l-L)**2)
y2(l) = sqrt(k1 + k2*l + k3*l*l)
w(t) = t**q

x(t) = x0 - sqrt(r*r + (s*L*(t-m))**2) - b*(t*L)**2
y(t) = w(t)*y1(t*L) + (1-w(t))*y2(t*L)

set parametric
set trange [0:1]
set samples 100

plot x(t),y(t)
 

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#9,188
mabat said:
Did you try the User Guide?
Click to expand...
tried with the config file as :

OutputRootDir = "C:\Horns"
MeshCmd = "C:\Horns\gmsh-4.9.3\gmsh-4.9.3-Windows64\gmsh.exe %f -"
GnuplotPath = "C:\Horns\gnuplot\bin\gnuplot"

and even after adding those lines in the config the same problem when I click the ath.exe file also tried to create a shortcut and referenced the ath.exe same problem.

what else to be done?
 
#9,189
1642948470678.png


I have got the above response in commandline
 
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