Civil Engineering

Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed) Calculator

Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed) engineering calculator.

Quick Answer

Calculate Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed)

Calculator

Shield's parameter (dimensionless)
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Result Interpretation

Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed) Calculator computes Shield's parameter in dimensionless using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

  • Energy slope = 0.001
  • Median grain diameter = 0.5
  • Water density = 998.2
  • Sediment grain density = 2650

Expected Result:

  • Shield's parameter = 0.60431044920693

Engineering Interpretation:

Under the given input conditions, the calculated result is: Shield's parameter = 0.60431044920693 dimensionless.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

shield's parameter = (water density * 9.80665 * (median grain diameter / 1000.0) * (energy slope)) / (sediment grain density - water density) / 9.80665 / (median grain diameter / 1000.0) * 1000.0

Formula family: formula_civil_civil_hydraulic_channel_stability_checker_for_non_cohesive_bed_material_shield_s_parameter_method

Variables

SymbolLabelRoleDescription
rho_water Water density INPUT Water density
rho_sediment Sediment grain density INPUT Sediment grain density
D50 Median grain diameter INPUT Median grain diameter
Sf Energy slope INPUT Energy slope
shield_parameter Shield's parameter OUTPUT Shield's parameter
g g CONSTANT g = 9.80665 m/s^2

Calculation Steps

  1. Enter the water density in kg/m^3.
  2. Enter the sediment grain density in kg/m^3.
  3. Enter the median grain diameter in mm.
  4. Enter the energy slope in dimensionless.
  5. Step 1: Compute shield's parameter.
  6. Read the shield's parameter (dimensionless) from the results.

Engineering Summary

Calculate Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed)

Frequently Asked Questions

What does this calculator calculate?

The Shield's Parameter for Open-Channel Sediment Stability (Non-Cohesive Bed) Calculator estimates Shield's parameter based on the input parameters you provide

What physical constants are used in this calculation?

This calculation uses the standard acceleration due to gravity (g = 9.80665 m/s^2). This is a fundamental physical constant that ensures the formula produces results in consistent engineering units

Why is water density important in this calculation?

water density is inversely proportional to shield's parameter. When you enter water density in kg/m^3, the calculator uses it in the engineering formula to compute the output

How should I interpret the result shield's parameter?

The calculator outputs shield's parameter in dimensionless. 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: Water density (kg/m^3), Sediment grain density (kg/m^3), Median grain diameter (mm), Energy slope (dimensionless). 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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