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Prandtl Number Calculator — result sheet
Calculate the Prandtl number from specific heat, dynamic viscosity, and thermal conductivity.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Prandtl number=specific heat×dynamic viscosity/thermal conductivity.
The Prandtl number compares momentum diffusivity with thermal diffusivity for the entered fluid properties.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Specific heat capacity — J/(kg·K); minimum 1.0E-6; maximum 1000000000000
- Dynamic viscosity — Pa·s; minimum 1.0E-12; maximum 1000000000000
- Thermal conductivity — W/(m·K); minimum 1.0E-6; maximum 1000000000000
Worked example
| Input | Value |
|---|---|
| Specific heat capacity | 1005 |
| Dynamic viscosity | 1.8E-5 |
| Thermal conductivity | 0.026 |
Prandtl number ≈0.697.
Assumptions and limits
- Properties are evaluated at the same state and use compatible SI units.
- The number is dimensionless and does not itself determine a heat-transfer coefficient.
- Property variation, turbulence modeling, compressibility, and geometry are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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