Sagar S Kulkarni
Dayananda Sagar College of Engineering (DSCE), Bengaluru
Sagar S Kulkarni has created this Calculator and 200+ more calculators!
Nishan Poojary
Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi
Nishan Poojary has verified this Calculator and 200+ more calculators!

11 Other formulas that you can solve using the same Inputs

Manometric efficiency in terms of velocities
Manometric efficiency=([g]*Manometric head)/(Velocity of whirl at outlet*Tangential velocity of impeller at outlet) GO
Thoma's cavitation factor
Thoma's cavitation factor=(Atmospheric pressure head-Suction head-Vapour pressure head)/Manometric head GO
Volume of liquid at outlet
Discharge=pi*Diameter of impeller at outlet*Width of impeller at outlet*Velocity of flow at outlet GO
Tangential velocity given speed ratio
Tangential velocity of impeller at outlet=Speed ratio*sqrt(2*[g]*Manometric head) GO
Speed ratio
Speed ratio=Tangential velocity of impeller at outlet/sqrt(2*[g]*Manometric head) GO
Outlet diameter of impeller in terms of speed ratio, manometric head and impeller speed
Diameter of impeller at outlet=(84.6*Speed ratio*sqrt(Manometric head))/Speed GO
Overall efficiency
Overall efficiency =(Specific Weight*Discharge*Manometric head)/Input Power GO
Output power
Output power of a pump=(Specific Weight*Discharge*Manometric head)/1000 GO
Least diameter of impeller
Diameter of impeller at outlet=(97.68*sqrt(Manometric head))/Speed GO
Flow velocity given flow ratio
Velocity of flow at outlet=Flow ratio*sqrt(2*[g]*Manometric head) GO
Manometric efficiency
Manometric efficiency=Manometric head/Head imparted by impeller GO

Flow ratio Formula

Flow ratio=Velocity of flow at outlet/sqrt(2*[g]*Manometric head)
K<sub>f</sub>=V<sub>f2</sub>/sqrt(2*[g]*H<sub>mano</sub>)
More formulas
Angular velocity GO
Tangential velocity of the impeller at inlet GO
Tangential velocity of impeller at outlet GO
Impeller radius at inlet given inlet tangential velocity GO
Torque at outlet GO
Work done per second GO
Work done per second in terms of torque and angular velocity GO
Work done per second per unit weight of liquid GO
Work done per second if the flow at inlet is not radial GO
Work done per second per unit weight of liquid if the flow at inlet is not radial GO
Volume of liquid at inlet GO
Weight of liquid GO
Static head GO
Manometric head in terms of static head and losses in pipes GO
Manometric head in terms of head imparted by the impeller and loss of head in the pump GO
Manometric head in terms of total head at outlet and inlet of the pump GO
Manometric efficiency GO
Manometric efficiency in terms of velocities GO
Tangential velocity of the impeller at inlet in terms of angular velocity and impeller radius GO
Tangential velocity of the impeller at outlet in terms of angular velocity and impeller radius GO
Impeller radius at outlet given outlet tangential velocity GO
Volume of liquid at outlet GO
Manometric head in terms of static head, friction losses in suction and delivery pipes GO
Manometric head in terms of head imparted by the impeller if loss of head in the pump is zero GO
Volumetric efficiency GO
Mechanical efficiency GO
Overall efficiency in terms of manometric, volumetric and mechanical efficiencies GO
Minimum speed for starting a centrifugal pump GO
vane efficiency GO
Tangential velocity given speed ratio GO
Flow velocity given flow ratio GO
Flow velocity at inlet given volume of liquid GO
Flow velocity at outlet given volume of liquid GO
Impeller power GO
Output power GO
Static power GO
Outlet diameter of impeller in terms of speed ratio, manometric head and impeller speed GO
Manometric head given outlet impeller diameter, impeller speed and speed ratio GO
Least diameter of impeller GO
Diameter of suction pipe GO
Diameter of delivery pipe GO
Leakage of liquid given volumetric efficiency and discharge GO
Overall efficiency GO
Thoma's cavitation factor GO
Net positive suction head GO
Suction specific speed GO
Thoma's cavitation factor in terms of net positive suction head GO

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=Velocity of flow at outlet/sqrt(2*[g]*Manometric head) to calculate the Flow ratio, The Flow ratio formula is defined as the ratio of velocity of flow at outlet to the square root of product of twice the acceleration due to gravity and manometric head. Flow ratio and is denoted by Kf symbol.

How to calculate Flow ratio using this online calculator? To use this online calculator for Flow ratio, enter Velocity of flow at outlet (Vf2) and Manometric head (Hmano) and hit the calculate button. Here is how the Flow ratio calculation can be explained with given input values -> 0.015966 = 0.1/sqrt(2*[g]*2).

FAQ

What is Flow ratio?
The Flow ratio formula is defined as the ratio of velocity of flow at outlet to the square root of product of twice the acceleration due to gravity and manometric head and is represented as Kf=Vf2/sqrt(2*[g]*Hmano) or Flow ratio=Velocity of flow at outlet/sqrt(2*[g]*Manometric head). Velocity of flow at outlet is velocity at the outlet of pump and Manometric head is the sum of various losses and velocity in delivery pipe.
How to calculate Flow ratio?
The Flow ratio formula is defined as the ratio of velocity of flow at outlet to the square root of product of twice the acceleration due to gravity and manometric head is calculated using Flow ratio=Velocity of flow at outlet/sqrt(2*[g]*Manometric head). To calculate Flow ratio, you need Velocity of flow at outlet (Vf2) and Manometric head (Hmano). With our tool, you need to enter the respective value for Velocity of flow at outlet and Manometric head and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Share Image
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!