Flow ratio Calculator

✖Flow velocity at outlet of centrifugal pump is the velocity of the fluid at the outlet of the impeller or the centrifugal pump.ⓘ Flow Velocity at Outlet of Centrifugal Pump [V_f2]			+10% -10%
✖The Manometric Head of Centrifugal Pump is the head against which the centrifugal pump has to work.ⓘ Manometric Head of Centrifugal Pump [H_m]			+10% -10%

✖Flow ratio centrifugal pump is the ratio of the velocity of flow at the exit to the theoretical velocity of the jet corresponding manometric head.ⓘ Flow ratio [K_f]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Fluid Machinery Formula PDF PDF Image

Flow ratio Solution

STEP 0: Pre-Calculation Summary

Formula Used

Flow Ratio Centrifugal Pump = Flow Velocity at Outlet of Centrifugal Pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump)
K_f = V_f2/sqrt(2*[g]*H_m)
This formula uses 1 Constants, 1 Functions, 3 Variables

Constants Used

[g] - Gravitational acceleration on Earth Value Taken As 9.80665

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

Flow Ratio Centrifugal Pump - Flow ratio centrifugal pump is the ratio of the velocity of flow at the exit to the theoretical velocity of the jet corresponding manometric head.
Flow Velocity at Outlet of Centrifugal Pump - (Measured in Meter per Second) - Flow velocity at outlet of centrifugal pump is the velocity of the fluid at the outlet of the impeller or the centrifugal pump.
Manometric Head of Centrifugal Pump - (Measured in Meter) - The Manometric Head of Centrifugal Pump is the head against which the centrifugal pump has to work.

STEP 1: Convert Input(s) to Base Unit

Flow Velocity at Outlet of Centrifugal Pump: 2.12 Meter per Second --> 2.12 Meter per Second No Conversion Required
Manometric Head of Centrifugal Pump: 25.3 Meter --> 25.3 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

K_f = V_f2/sqrt(2*[g]*H_m) --> 2.12/sqrt(2*[g]*25.3)

Evaluating ... ...

K_f = 0.0951700428213033

STEP 3: Convert Result to Output's Unit

0.0951700428213033 --> No Conversion Required

FINAL ANSWER

0.0951700428213033 ≈ 0.09517 <-- Flow Ratio Centrifugal Pump

(Calculation completed in 00.004 seconds)

You are here -

Home » Physics » Fluid Mechanics » Fluid Machinery » Centrifugal Pumps » Mechanical » Geometric and Flow Parameters » Flow ratio

Credits

Created by Sagar S Kulkarni

Dayananda Sagar College of Engineering (DSCE), Bengaluru

Sagar S Kulkarni has created this Calculator and 200+ more calculators!

Verified by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

Nishan Poojary has verified this Calculator and 400+ more calculators!

< Geometric and Flow Parameters Calculators

Volume of liquid at inlet

LaTeX Go Actual Discharge at Centrifugal Pump Outlet = pi*Diameter of Centrifugal Pump Impeller at Inlet*Width of Impeller at Inlet*Flow Velocity at Inlet of Centrifugal Pump

Speed ratio

LaTeX Go Speed Ratio Centrifugal Pump = Tangential Velocity of Impeller at Outlet/sqrt(2*[g]*Manometric Head of Centrifugal Pump)

Weight of liquid

LaTeX Go Weight of Liquid in Pump = Specific Weight of Liquid*Actual Discharge at Centrifugal Pump Outlet

Static head

LaTeX Go Static Head of Centrifugal Pump = Suction Head of Centrifugal Pump+Delivery Head of Pump

Flow ratio Formula

LaTeX Go

Flow Ratio Centrifugal Pump = Flow Velocity at Outlet of Centrifugal Pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump)
K_f = V_f2/sqrt(2*[g]*H_m)

What is manometric head?

Manometric head is the sum of the actual lift (Static head), the frictional losses in the pipes and the discharge velocity head. In other words, the energy needed by the water from suction in suction pipe to discharge in the discharge tank, converted into head form is called manometric head.

How to Calculate Flow ratio?

Flow ratio calculator uses Flow Ratio Centrifugal Pump = Flow Velocity at Outlet of Centrifugal Pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump) to calculate the Flow Ratio Centrifugal Pump, Flow ratio formula is defined as a dimensionless quantity that characterizes the flow behavior in a centrifugal pump, providing a relationship between the volumetric flow rate and the geometric parameters of the pump, allowing for the optimization of pump design and performance. Flow Ratio Centrifugal Pump is denoted by K_f symbol.

How to calculate Flow ratio using this online calculator? To use this online calculator for Flow ratio, enter Flow Velocity at Outlet of Centrifugal Pump (V_f2) & Manometric Head of Centrifugal Pump (H_m) and hit the calculate button. Here is how the Flow ratio calculation can be explained with given input values -> 0.09517 = 2.12/sqrt(2*[g]*25.3).

FAQ

What is Flow ratio?

Flow ratio formula is defined as a dimensionless quantity that characterizes the flow behavior in a centrifugal pump, providing a relationship between the volumetric flow rate and the geometric parameters of the pump, allowing for the optimization of pump design and performance and is represented as K_f = V_f2/sqrt(2*[g]*H_m) or Flow Ratio Centrifugal Pump = Flow Velocity at Outlet of Centrifugal Pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump). Flow velocity at outlet of centrifugal pump is the velocity of the fluid at the outlet of the impeller or the centrifugal pump & The Manometric Head of Centrifugal Pump is the head against which the centrifugal pump has to work.

How to calculate Flow ratio?

Flow ratio formula is defined as a dimensionless quantity that characterizes the flow behavior in a centrifugal pump, providing a relationship between the volumetric flow rate and the geometric parameters of the pump, allowing for the optimization of pump design and performance is calculated using Flow Ratio Centrifugal Pump = Flow Velocity at Outlet of Centrifugal Pump/sqrt(2*[g]*Manometric Head of Centrifugal Pump). To calculate Flow ratio, you need Flow Velocity at Outlet of Centrifugal Pump (V_f2) & Manometric Head of Centrifugal Pump (H_m). With our tool, you need to enter the respective value for Flow Velocity at Outlet of Centrifugal Pump & Manometric Head of Centrifugal Pump and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search