I was wondering if someone could help shed some light on an equation I found regarding obtaining the slope of sewage pipes in the following paper:-
The paper attached Page 1.PNGPage 2.PNGPage 3.PNGPage 4.PNG
The equation that is quoted to obtain the slope (equation 13) is given as:-
S = 4.65 * N^2 * D^(-4/3) * (q/Q)^(-1/2) * v^2
I was wondering if anyone could figure out what the variables q and Q referred to as these variables are not defined in the paper.
I think Q = Flow Rate but no idea what q refers to.
Can anyone help?
q appears to be a flow rate where on page 4 (q / Q ) appears to be a flow rate ratio.
The document in question should provide declaration for each variable.
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