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Static Enthalpy Formula

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The Static Enthalpy is the total energy per unit mass of a fluid, accounting for its internal energy and flow energy, crucial in analyzing hypersonic and viscous flows. Check FAQs

he = \frac{H}{g}

he - Static Enthalpy?H - Enthalpy?g - Non Dimensional Static Enthalpy?

Static Enthalpy Example

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With units

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Here is how the Static Enthalpy equation looks like with Values.

Here is how the Static Enthalpy equation looks like with Units.

Here is how the Static Enthalpy equation looks like.

499.8347 = \frac{1.512}{3.025}

499.8347J/kg = \frac{1.512KJ}{3.025}

499.8347 = \frac{1.512}{3.025}

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Static Enthalpy Solution

Follow our step by step solution on how to calculate Static Enthalpy?

FIRST Step Consider the formula

he = \frac{H}{g}

Next Step Substitute values of Variables

∴

he = \frac{1.512KJ}{3.025}

Next Step Convert Units

∴

he = \frac{1512J}{3.025}

Next Step Prepare to Evaluate

∴

he = \frac{1512}{3.025}

Next Step Evaluate

∴

he = 499.834710743802J/kg

LAST Step Rounding Answer

∴

he = 499.8347J/kg

Static Enthalpy Formula Elements

Variables

Static Enthalpy

The Static Enthalpy is the total energy per unit mass of a fluid, accounting for its internal energy and flow energy, crucial in analyzing hypersonic and viscous flows.

Symbol: he

Measurement: Specific EnergyUnit: J/kg

Note: Value should be greater than 0.

Formulas to find Static Enthalpy

Enthalpy

The Enthalpy is a thermodynamic property that represents the total heat content of a system, reflecting its energy changes during processes at constant pressure.

Symbol: H

Measurement: EnergyUnit: KJ

Note: Value can be positive or negative.

Formulas to find Enthalpy

Non Dimensional Static Enthalpy

The Non Dimensional Static Enthalpy is a measure of the energy content of a fluid flow, normalized to account for variations in temperature and pressure conditions.

Symbol: g

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Non Dimensional Static Enthalpy

Other formulas in Aero Thermal Dynamics category

Go Non Dimensional Internal Energy Parameter

e' = \frac{U}{C p \cdot T}

Go Non Dimensional Internal Energy Parameter using Wall-to-Freestream Temperature Ratio

e' = \frac{Tw}{T ∞}

Go Wall Temperature Calculation using Internal Energy Change

Tw = e' \cdot T ∞

Go Aerodynamic Heating to Surface

q w = ρ e \cdot u e \cdot St \cdot (h aw - h w)

How to Evaluate Static Enthalpy?

Static Enthalpy evaluator uses Static Enthalpy = Enthalpy/Non Dimensional Static Enthalpy to evaluate the Static Enthalpy, Static Enthalpy formula is defined as a measure of the total energy of a system, including both internal energy and the energy associated with the pressure and volume of a fluid, commonly used in the analysis of thermodynamic systems in viscous flow fundamentals. Static Enthalpy is denoted by he symbol.

How to evaluate Static Enthalpy using this online evaluator? To use this online evaluator for Static Enthalpy, enter Enthalpy (H) & Non Dimensional Static Enthalpy (g) and hit the calculate button.

FAQs on Static Enthalpy

What is the formula to find Static Enthalpy?

The formula of Static Enthalpy is expressed as Static Enthalpy = Enthalpy/Non Dimensional Static Enthalpy. Here is an example- 499.8347 = 1512/3.025.

How to calculate Static Enthalpy?

With Enthalpy (H) & Non Dimensional Static Enthalpy (g) we can find Static Enthalpy using the formula - Static Enthalpy = Enthalpy/Non Dimensional Static Enthalpy.

Can the Static Enthalpy be negative?

No, the Static Enthalpy, measured in Specific Energy cannot be negative.

Which unit is used to measure Static Enthalpy?

Static Enthalpy is usually measured using the Joule per Kilogram[J/kg] for Specific Energy. Joule per Gram[J/kg], Joule per Centigram[J/kg], Square Meter per Square Second[J/kg] are the few other units in which Static Enthalpy can be measured.

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