Jet Pressure on Surface | Online Calculator

Fluid Dynamic Calculators

Jet Pressure on Surface

In this calculation, a fluid jet with a density ρ and average velocity W, directed to a flat surface at an angle α is considered.

Depending on the flow dynamic pressure Pd, the fluid pressure P on the surface, the maximum of which is at the point of contact between the jet and the plane, is determined by the formula:

P = 2*Pd*sin2α

When contacting with the surface, the jet range increases and depends on the angle of attack, nozzle diameter and height above the surface, initial velocity, and fluid density.

Jet pressure calculation
Jet pressure calculation

INITIAL DATA

W - Jet velocity;

ρ - Fluid density;

α - Attack angle of the jet.

RESULTS DATA

P - Maximum pressure at the surface.

Jet velocity (W)

Fluid density (ρ)

Attack angle (α)

Pressure (P)

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BASIC FORMULAS

Dynamic pressure of the jet:

Pd = W2*ρ / 2;

Pressure at the surface:

P = 2*Pd*sin2α.

INITIAL DATA

W - Jet velocity;

ρ - Fluid density;

α - Attack angle of the jet.

RESULTS DATA

P - Maximum pressure at the surface.

FLUID PROPERTIES

Fluid

Dynamic viscosity

Pa*s

(lb*s/ft2)

Density

Kg/m3

(lb/ft3)

Water

0.001

(0.0000208)

1005

(62.8)

Freon-11

0.00048

(0.00001)

1494

(93.4)

Freon-12

0.00028

(0.00000586)

1330

(83.1)

Freon-22

0.00025

(0.00000522)

1202

(75.1)

Freon-113

0.00074

(0.0000155)

1573

(98.3)

Kerosene

0.00256

(0.0000535)

804

(50.25)

Benzene

0.00069

(0.0000144)

879

(54.9)

Glycerol

1.393

(0.029)

1261

(78.8)

Ethanol

0.00122

(0.0000255)

789

(49.3)

Mercury

0.00159

(0.0000332)

13545

(846)

Linseed oil

0.044

(0.000919)

924

(57.75)

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