Pressure Ratio for Blunt Cylinder Blast Wave Calculator

✖Mach number is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.ⓘ Mach Number [M]			+10% -10%
✖Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.ⓘ Drag Coefficient [C_D]			+10% -10%
✖Distance from X-Axis is defined as the distance from the point where stress is to be computed to XX axis.ⓘ Distance from X-Axis [y]			+10% -10%
✖Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.ⓘ Diameter [d]			+10% -10%

✖Pressure Ratio for Blunt Cylinder Blast Wave is ratio of final to initial pressure.ⓘ Pressure Ratio for Blunt Cylinder Blast Wave [r_bc]

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Pressure Ratio for Blunt Cylinder Blast Wave Solution

STEP 0: Pre-Calculation Summary

Formula Used

Pressure Ratio for Blunt Cylinder Blast Wave = 0.8773*[BoltZ]*Mach Number^2*sqrt(Drag Coefficient)*(Distance from X-Axis/Diameter)^(-1)
r_bc = 0.8773*[BoltZ]*M^2*sqrt(C_D)*(y/d)^(-1)
This formula uses 1 Constants, 1 Functions, 5 Variables

Constants Used

[BoltZ] - Boltzmann constant Value Taken As 1.38064852E-23

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Pressure Ratio for Blunt Cylinder Blast Wave - Pressure Ratio for Blunt Cylinder Blast Wave is ratio of final to initial pressure.
Mach Number - Mach number is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.
Drag Coefficient - Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.
Distance from X-Axis - (Measured in Meter) - Distance from X-Axis is defined as the distance from the point where stress is to be computed to XX axis.
Diameter - (Measured in Meter) - Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

STEP 1: Convert Input(s) to Base Unit

Mach Number: 5.5 --> No Conversion Required
Drag Coefficient: 0.19866 --> No Conversion Required
Distance from X-Axis: 2.2 Meter --> 2.2 Meter No Conversion Required
Diameter: 2.425 Meter --> 2.425 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

r_bc = 0.8773*[BoltZ]*M^2*sqrt(C_D)*(y/d)^(-1) --> 0.8773*[BoltZ]*5.5^2*sqrt(0.19866)*(2.2/2.425)^(-1)

Evaluating ... ...

r_bc = 1.80011776429912E-22

STEP 3: Convert Result to Output's Unit

1.80011776429912E-22 --> No Conversion Required

FINAL ANSWER

1.80011776429912E-22 ≈ 1.8E-22 <-- Pressure Ratio for Blunt Cylinder Blast Wave

(Calculation completed in 00.020 seconds)

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Home » Engineering » Mechanical » Fluid Mechanics » Hypersonic Flow » Hypersonic Equivalence Principle and Blast Wave Theory » Planar and Blunt Slab Blast Wave » Pressure Ratio for Blunt Cylinder Blast Wave

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Created by Sanjay Krishna

Amrita School of Engineering (ASE), Vallikavu

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Indian Institute of Technology (IIT), Bombay

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< Planar and Blunt Slab Blast Wave Calculators

Creation Pressure for Planar Blast Wave

LaTeX Go Pressure = [BoltZ]*Freestream Density*(Energy for Blast Wave/Freestream Density)^(2/3)*Time Required for Blast Wave^(-2/3)

Energy for Blast Wave

LaTeX Go Energy for Blast Wave = 0.5*Freestream Density*Freestream Velocity^2*Drag Coefficient*Area for Blast Wave

Radial Coordinate for Planar Blast Wave

LaTeX Go Radial Coordinate = (Energy for Blast Wave/Freestream Density)^(1/3)*Time Required for Blast Wave^(2/3)

Time Required for Blast Wave

LaTeX Go Time Required for Blast Wave = Distance from X-Axis/Freestream Velocity

Pressure Ratio for Blunt Cylinder Blast Wave Formula

LaTeX Go

Pressure Ratio for Blunt Cylinder Blast Wave = 0.8773*[BoltZ]*Mach Number^2*sqrt(Drag Coefficient)*(Distance from X-Axis/Diameter)^(-1)
r_bc = 0.8773*[BoltZ]*M^2*sqrt(C_D)*(y/d)^(-1)

What is a boltzmann constant?

The Boltzmann constant (kB or k) is the proportionality factor that relates the average relative kinetic energy of particles in a gas with the thermodynamic temperature of the gas

How to Calculate Pressure Ratio for Blunt Cylinder Blast Wave?

Pressure Ratio for Blunt Cylinder Blast Wave calculator uses Pressure Ratio for Blunt Cylinder Blast Wave = 0.8773*[BoltZ]*Mach Number^2*sqrt(Drag Coefficient)*(Distance from X-Axis/Diameter)^(-1) to calculate the Pressure Ratio for Blunt Cylinder Blast Wave, Pressure Ratio for Blunt Cylinder Blast Wave formula is defined as a dimensionless quantity that characterizes the blast wave generated by a blunt cylinder in a hypersonic flow, providing a measure of the pressure ratio between the stagnation point and the ambient pressure. Pressure Ratio for Blunt Cylinder Blast Wave is denoted by r_bc symbol.

How to calculate Pressure Ratio for Blunt Cylinder Blast Wave using this online calculator? To use this online calculator for Pressure Ratio for Blunt Cylinder Blast Wave, enter Mach Number (M), Drag Coefficient (C_D), Distance from X-Axis (y) & Diameter (d) and hit the calculate button. Here is how the Pressure Ratio for Blunt Cylinder Blast Wave calculation can be explained with given input values -> 1.8E-22 = 0.8773*[BoltZ]*5.5^2*sqrt(0.19866)*(2.2/2.425)^(-1).

FAQ

What is Pressure Ratio for Blunt Cylinder Blast Wave?

Pressure Ratio for Blunt Cylinder Blast Wave formula is defined as a dimensionless quantity that characterizes the blast wave generated by a blunt cylinder in a hypersonic flow, providing a measure of the pressure ratio between the stagnation point and the ambient pressure and is represented as r_bc = 0.8773*[BoltZ]*M^2*sqrt(C_D)*(y/d)^(-1) or Pressure Ratio for Blunt Cylinder Blast Wave = 0.8773*[BoltZ]*Mach Number^2*sqrt(Drag Coefficient)*(Distance from X-Axis/Diameter)^(-1). Mach number is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound, Drag Coefficient is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water, Distance from X-Axis is defined as the distance from the point where stress is to be computed to XX axis & Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

How to calculate Pressure Ratio for Blunt Cylinder Blast Wave?

Pressure Ratio for Blunt Cylinder Blast Wave formula is defined as a dimensionless quantity that characterizes the blast wave generated by a blunt cylinder in a hypersonic flow, providing a measure of the pressure ratio between the stagnation point and the ambient pressure is calculated using Pressure Ratio for Blunt Cylinder Blast Wave = 0.8773*[BoltZ]*Mach Number^2*sqrt(Drag Coefficient)*(Distance from X-Axis/Diameter)^(-1). To calculate Pressure Ratio for Blunt Cylinder Blast Wave, you need Mach Number (M), Drag Coefficient (C_D), Distance from X-Axis (y) & Diameter (d). With our tool, you need to enter the respective value for Mach Number, Drag Coefficient, Distance from X-Axis & Diameter 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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