Free Stream Enthalpy Calculator

✖Total Specific Enthalpy defined to be the sum of the internal energy E plus the product of the pressure p and volume V.ⓘ Total Specific Enthalpy [h₀]			+10% -10%
✖The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.ⓘ Freestream Velocity [V_∞]			+10% -10%

✖Freestream specific enthalpy is the enthalpy of the continuous flow of fluid and the sum of the internal energy E plus the product of the pressure p and volume V.ⓘ Free Stream Enthalpy [h_∞]

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Formula

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Free Stream Enthalpy

Formula

`"h"_{"∞"} = "h"_{"0"}-("V"_{"∞"}^2)/2`

Example

`"-4602J/kg"="200J/kg"-(("98m/s")^2)/2`

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Free Stream Enthalpy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2
h_∞ = h₀-(V_∞^2)/2
This formula uses 3 Variables

Variables Used

Freestream Specific Enthalpy - (Measured in Joule per Kilogram) - Freestream specific enthalpy is the enthalpy of the continuous flow of fluid and the sum of the internal energy E plus the product of the pressure p and volume V.
Total Specific Enthalpy - (Measured in Joule per Kilogram) - Total Specific Enthalpy defined to be the sum of the internal energy E plus the product of the pressure p and volume V.
Freestream Velocity - (Measured in Meter per Second) - The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.

STEP 1: Convert Input(s) to Base Unit

Total Specific Enthalpy: 200 Joule per Kilogram --> 200 Joule per Kilogram No Conversion Required
Freestream Velocity: 98 Meter per Second --> 98 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_∞ = h₀-(V_∞^2)/2 --> 200-(98^2)/2

Evaluating ... ...

h_∞ = -4602

STEP 3: Convert Result to Output's Unit

-4602 Joule per Kilogram --> No Conversion Required

FINAL ANSWER

-4602 Joule per Kilogram <-- Freestream Specific Enthalpy

(Calculation completed in 00.004 seconds)

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Created by Sanjay Krishna

Amrita School of Engineering (ASE), Vallikavu

Sanjay Krishna has created this Calculator and 300+ more calculators!

Verified by Shikha Maurya

Indian Institute of Technology (IIT), Bombay

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< 11 Space-Marching Finite Difference Method: Additional Solutions of the Euler Equations Calculators

Total Enthalpy Equation using Specific Heat Ratio and Velocities

Go Total Specific Enthalpy = Specific Heat Ratio/(Specific Heat Ratio-1)*Pressure/Density+(Component of Velocity in X-Direction^2+Component of Velocity in Y-Direction^2)/2

Enthalpy Equation using Specific Heat Ratio

Go Enthalpy = Specific Heat Ratio*[R]*Temperature/(Specific Heat Ratio-1)

Density Equation using Enthalpy and Pressure

Go Density = Specific Heat Ratio/(Specific Heat Ratio-1)*Pressure/Enthalpy

Pressure Equation using Enthalpy and Density

Go Pressure = Enthalpy*Density*(Specific Heat Ratio-1)/Specific Heat Ratio

Enthalpy Equation using Pressure and Density

Go Enthalpy = Specific Heat Ratio/(Specific Heat Ratio-1)*Pressure/Density

Coefficient of Pressure Equation using Specific Heat Ratio

Go Pressure Coefficient = (Specific Heat Ratio*Universal Gas Constant)/(Specific Heat Ratio-1)

Curvilinear Grid Location Equation

Go Grid Points = (Distance from Y-Axis-Local Ordinate of Body)/Local Shock-layer Thickness

Local Shock-Layer Thickness

Go Local Shock-layer Thickness = Local ordinate of the shock-Local Ordinate of Body

Free Stream Enthalpy

Go Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2

Total Specific Enthalpy

Go Total Specific Enthalpy = Enthalpy+(Fluid Velocity^2)/2

Enthalpy Equation using Coefficient of Pressure for Calorically Perfect Gas

Go Enthalpy = Pressure Coefficient*Temperature

Free Stream Enthalpy Formula

Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2
h_∞ = h₀-(V_∞^2)/2

What is enthalpy?

Enthalpy is defined as the sum of the system's internal energy and the product of its pressure and volume. It is used in many measurements in chemical, biological, and physical systems at a constant pressure.

How to Calculate Free Stream Enthalpy?

Free Stream Enthalpy calculator uses Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2 to calculate the Freestream Specific Enthalpy, The Free stream enthalpy formula is defined as the subtraction of total enthalpy to half of square of free stream velocity of fluid. Freestream Specific Enthalpy is denoted by h_∞ symbol.

How to calculate Free Stream Enthalpy using this online calculator? To use this online calculator for Free Stream Enthalpy, enter Total Specific Enthalpy (h₀) & Freestream Velocity (V_∞) and hit the calculate button. Here is how the Free Stream Enthalpy calculation can be explained with given input values -> -4602 = 200-(98^2)/2.

FAQ

What is Free Stream Enthalpy?

The Free stream enthalpy formula is defined as the subtraction of total enthalpy to half of square of free stream velocity of fluid and is represented as h_∞ = h₀-(V_∞^2)/2 or Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2. Total Specific Enthalpy defined to be the sum of the internal energy E plus the product of the pressure p and volume V & The Freestream Velocity is the velocity of air far upstream of an aerodynamic body, that is before the body has a chance to deflect, slow down or compress the air.

How to calculate Free Stream Enthalpy?

The Free stream enthalpy formula is defined as the subtraction of total enthalpy to half of square of free stream velocity of fluid is calculated using Freestream Specific Enthalpy = Total Specific Enthalpy-(Freestream Velocity^2)/2. To calculate Free Stream Enthalpy, you need Total Specific Enthalpy (h₀) & Freestream Velocity (V_∞). With our tool, you need to enter the respective value for Total Specific Enthalpy & Freestream Velocity and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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