Drainage formula (Water Overlay): Difference between revisions
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
<math>Q_{p,t}=\Delta t*q_t</math> | <math>Q_{p,t}=\Delta t*q_t</math> | ||
<math>Q_{b} = A_d \cdot f_s \cdot \abs{\frac{(w_g - w_w) \cdot A_w}{A_d \cdot f_s + A_w}}</math> | |||
<math> | |||
<math>Q_{max} = A_d * (w_d - z_d) * f_s</math> | |||
<math> | |||
where: | where: | ||
: <math>w_g</math> is the ground water level in meters | : <math>w_g</math> is the ground water level in meters | ||
: <math>w_w</math> is the water level in the waterway | |||
: <math>z_d</math> is the drainage datum height in meters. | : <math>z_d</math> is the drainage datum height in meters. | ||
: <math>A_d</math> is the drainage area size in square meters. | : <math>A_d</math> is the drainage area size in square meters. | ||
: <math>f_s</math> is the average storage percentage of the ground above the drainage. | : <math>f_s</math> is the average storage percentage of the ground above the drainage. | ||
: <math>Q_{b}</math> is the amount transfered for a balanced ground and surface water level | |||
: <math>Q_{max} is the amount available in the ground above the drainage. | |||
: <math> | |||
Revision as of 14:53, 4 December 2020
Drainage passive: First the flow capacity is calculated Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Q_{p,t}=\Delta t*q_t}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Q_{b} = A_d \cdot f_s \cdot \abs{\frac{(w_g - w_w) \cdot A_w}{A_d \cdot f_s + A_w}}}
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Q_{max} = A_d * (w_d - z_d) * f_s} Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle where: : <math>w_g} is the ground water level in meters
- is the water level in the waterway
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle z_d} is the drainage datum height in meters.
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle A_d} is the drainage area size in square meters.
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle f_s} is the average storage percentage of the ground above the drainage.
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Q_{b}} is the amount transfered for a balanced ground and surface water level
- <math>Q_{max} is the amount available in the ground above the drainage.
- <math>
