engineeringkit.fluid_engineering#

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Fluid statics, pipe flows, similarity, flow measurement and pumps.

Fluid statics, internal flows, dimensional analysis, pumps and measurement.

engineeringkit.fluid_engineering.bernoulli_pressure(p1, rho, v1, v2, z1=0, z2=0, g=9.80665)[source]#

Bernoulli pressure.

Parameters:

  • p1 (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

  • v1 (m/s) – Input in the units stated above.

  • v2 (m/s) – Input in the units stated above.

  • z1 (m) – Input in the units stated above.

  • z2 (m) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Pa.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.buoyancy_force(rho, displaced_volume, g=9.80665)[source]#

Buoyancy force.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • displaced_volume (m^3) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.cavitation_number(p, p_vapor, rho, v)[source]#

Cavitation number.

Parameters:

  • p (Pa) – Input in the units stated above.

  • p_vapor (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.colebrook_friction_factor(Re, relative_roughness)[source]#

Colebrook friction factor.

Parameters:

  • Re (1) – Input in the units stated above.

  • relative_roughness (1) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.continuity_velocity(A1, v1, A2)[source]#

Continuity velocity.

Parameters:

  • A1 (m^2) – Input in the units stated above.

  • v1 (m/s) – Input in the units stated above.

  • A2 (m^2) – Input in the units stated above.

Returns:

m/s.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.darcy_head_loss(f, L, D, v, g=9.80665)[source]#

Darcy head loss.

Parameters:

  • f (1) – Input in the units stated above.

  • L (m) – Input in the units stated above.

  • D (m) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.dynamic_pressure(rho, v)[source]#

Dynamic pressure.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

Returns:

Pa.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.euler_number(delta_p, rho, v)[source]#

Euler number.

Parameters:

  • delta_p (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.froude_number(v, length, g=9.80665)[source]#

Froude number.

Parameters:

  • v (m/s) – Input in the units stated above.

  • length (m) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.hydraulic_diameter(area, wetted_perimeter)[source]#

Hydraulic diameter.

Parameters:

  • area (m^2) – Input in the units stated above.

  • wetted_perimeter (m) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.hydrostatic_pressure(rho, h, g=9.80665)[source]#

Hydrostatic pressure.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • h (m) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Pa.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.laminar_friction_factor(Re)[source]#

Laminar friction factor.

Parameters:

Re (1) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.mach_number(v, speed_of_sound)[source]#

Mach number.

Parameters:

  • v (m/s) – Input in the units stated above.

  • speed_of_sound (m/s) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.minor_head_loss(K, v, g=9.80665)[source]#

Minor head loss.

Parameters:

  • K (1) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.pitot_velocity(delta_p, rho)[source]#

Pitot velocity.

Parameters:

  • delta_p (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

Returns:

m/s.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.poiseuille_flow(delta_p, radius, length, mu)[source]#

Poiseuille flow.

Parameters:

  • delta_p (Pa) – Input in the units stated above.

  • radius (m) – Input in the units stated above.

  • length (m) – Input in the units stated above.

  • mu (Pa s) – Input in the units stated above.

Returns:

m^3/s.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.pressure_head(p, rho, g=9.80665)[source]#

Pressure head.

Parameters:

  • p (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.pump_hydraulic_power(rho, Q, head, g=9.80665)[source]#

Pump hydraulic power.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • Q (m^3/s) – Input in the units stated above.

  • head (m) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.pump_input_power(rho, Q, head, efficiency, g=9.80665)[source]#

Pump input power.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • Q (m^3/s) – Input in the units stated above.

  • head (m) – Input in the units stated above.

  • efficiency (1) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.pump_specific_speed(omega, Q, head, g=9.80665)[source]#

Pump specific speed.

Parameters:

  • omega (rad/s) – Input in the units stated above.

  • Q (m^3/s) – Input in the units stated above.

  • head (m) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.reynolds_number(rho, v, D, mu)[source]#

Reynolds number.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

  • D (m) – Input in the units stated above.

  • mu (Pa s) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.swamee_jain_friction_factor(Re, relative_roughness)[source]#

Swamee jain friction factor.

Parameters:

  • Re (1) – Input in the units stated above.

  • relative_roughness (1) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.velocity_head(v, g=9.80665)[source]#

Velocity head.

Parameters:

  • v (m/s) – Input in the units stated above.

  • g (m/s^2) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.venturi_flow(delta_p, rho, A1, A2)[source]#

Venturi flow.

Parameters:

  • delta_p (Pa) – Input in the units stated above.

  • rho (kg/m^3) – Input in the units stated above.

  • A1 (m^2) – Input in the units stated above.

  • A2 (m^2) – Input in the units stated above.

Returns:

m^3/s.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.water_hammer_pressure(rho, wave_speed, delta_v)[source]#

Water hammer pressure.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • wave_speed (m/s) – Input in the units stated above.

  • delta_v (m/s) – Input in the units stated above.

Returns:

Pa.

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.

engineeringkit.fluid_engineering.weber_number(rho, v, length, surface_tension)[source]#

Weber number.

Parameters:

  • rho (kg/m^3) – Input in the units stated above.

  • v (m/s) – Input in the units stated above.

  • length (m) – Input in the units stated above.

  • surface_tension (N/m) – Input in the units stated above.

Returns:

Return type:

result

Notes

Assumptions, governing equations and validity limits are discussed in Fluid engineering: flow regimes and signed quantities. SI inputs are required; raw numbers carry no dimensional metadata.