Wave speed f period - Output does not look right

[rgleason]

I have not checked this, but the output speeds don't look right.
To do
Check the formula and how it calculates.
Verify against another source

[rgleason]

The formula is over simplified I think.

Example:
http://www.physicsclassroom.com/class/waves/Lesson-2/The-Wave-Equation
The wavelength must be 8 meters (see diagram).
The period is 3 seconds so the frequency is 1 / T or 0.333 Hz.
Now use speed = f • wavelength Substituting and solving for v, you will get 2.67 m/s.

Another Example:
http://www.physicsclassroom.com/class/waves/Lesson-2/The-Wave-Equation
The wavelength is 8.6 meters and the period is 6.2 seconds.
The frequency can be determined from the period. If T = 6.2 s, then
f =1 /T = 1 / (6.2 s)
f = 0.161 Hz
Now find speed using the v = f • λ equation.
v = f • λ = (0.161 Hz) • (8.6 m)
v = 1.4 m/s

Ocean wave speed
Also depends on depth
https://www.google.com/search?q=ocean+wave+speed&client=firefox-b&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwiM8eT3n-jZAhUJnFkKHd5oAPsQsAQIzQE&biw=986&bih=388

A good PDF showing formulas and diagrams.
http://www.utdallas.edu/~mitterer/Oceanography/pdfs/OCEChapt09.pdf

Calculator
http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/wavplt.html

http://hyperphysics.phy-astr.gsu.edu/hbase/Waves/watwav2.html#c1

[rgleason]

Shallow water waves: When waves enter shallow water:

1. Wave speed decreases
2. Wave length decreases
3. Wave period does not change
4. Wave height increases

[rgleason]

The constant value of 3.03 is somewhere / sometimes about right, and the formula
3.03 (or some value around this) x wave period = wave speed
is about right.