Skip to main content
Speclore

Ar prandtl number viscosidade capacidade térmica condutividade térmica

Reference data e engineering information about ar prandtl number viscosidade capacidade térmica condutividade térmica para transferência de calor applications.

airprandtlnumberviscosityCalculadoraTabela de dados

Overview

Engineering reference data for Air Prandtl Number Viscosity Heat Capacity Thermal Conductivity in heat transfer.

Key Formulas

Fourier's Law

q=kTq = -k \nabla T

Heat flux proportional to temperature gradient.

Convective Heat Transfer

Q=hA(TsT)Q = hA(T_s - T_\infty)

Heat transfer between surface and fluid.

Stefan-Boltzmann Law

q=εσT4q = \varepsilon \sigma T^4

Radiative heat flux from a surface.

Thermal Resistance

Rth=LkAR_{th} = \frac{L}{kA}

Resistance to heat conduction.

Variables

SymbolDescriptionUnit
qqHeat fluxW/m²
kkThermal conductivityW/(m·K)
hhConvection coefficientW/(m²·K)
TTTemperatureK
ε\varepsilonEmissivity
σ\sigmaStefan-Boltzmann constant5.67×10⁻⁸ W/(m²·K⁴)

References