Quick Answer
Calculate Christiansen Uniformity Coefficient for Drip Emitter Laterals
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Find Engineering Solutions →Result Interpretation
Christiansen Uniformity Coefficient for Drip Emitter Laterals calculator computes Flow uniformity coefficient in % using the defined engineering formula and the input values provided. Flow uniformity coefficient is expressed in %. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Average emitter flow rate = 2
- Minimum emitter flow rate = 1.8
- Maximum emitter flow rate = 2.2
- Number of emitters = 20
- Sum of squared deviations from mean flow = 0.8
Expected Result:
- Flow uniformity coefficient = 97.654792120088
Engineering Interpretation:
Under the given input conditions, the calculated result is: Flow uniformity coefficient = 97.654792120088 %.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
flow uniformity coefficient = 100 * (1 - (sqrt(pow(average emitter flow rate - minimum emitter flow rate, 2) + pow(average emitter flow rate - maximum emitter flow rate, 2) + sum of squared deviations from mean flow) / (number of emitters * average emitter flow rate)))Formula family: formula_agri_agri_irrigation_emitter_flow_uniformity_calculator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| q_avg | Average emitter flow rate | INPUT | Average emitter flow rate |
| q_min | Minimum emitter flow rate | INPUT | Minimum emitter flow rate |
| q_max | Maximum emitter flow rate | INPUT | Maximum emitter flow rate |
| n | Number of emitters | INPUT | Number of emitters |
| sum_sq_dev | Sum of squared deviations from mean flow | INPUT | Sum of squared deviations from mean flow |
| result | Flow uniformity coefficient | OUTPUT | Flow uniformity coefficient |
Calculation Steps
- Enter the average emitter flow rate in L/h.
- Enter the minimum emitter flow rate in L/h.
- Enter the maximum emitter flow rate in L/h.
- Enter the number of emitters in 1.
- Enter the sum of squared deviations from mean flow in L²/h².
- Step 1: Compute flow uniformity coefficient.
- Read the flow uniformity coefficient (%) from the results.
Engineering Summary
Calculate Christiansen Uniformity Coefficient for Drip Emitter Laterals
Frequently Asked Questions
What does this calculator calculate?
The Christiansen Uniformity Coefficient for Drip Emitter Laterals calculator estimates Flow uniformity coefficient based on the input parameters you provide
Why is average emitter flow rate important in this calculation?
average emitter flow rate is used directly in the calculation of flow uniformity coefficient. Its effect on the result depends on the complete formula and the values of the other inputs.. When you enter average emitter flow rate in L/h, the calculator uses it in the engineering formula to compute the output
How should I interpret the result flow uniformity coefficient?
The calculator outputs flow uniformity coefficient in %. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Average emitter flow rate (L/h), Minimum emitter flow rate (L/h), Maximum emitter flow rate (L/h), Sum of squared deviations from mean flow (L²/h²). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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