# Volumetric Flow Rate Converter

Calculate flow rate

The volumetric flow rate of liquid is calculated using flow velocity and cross-sectional flow area information. Volumetric Flow Rate is equal to Flow Velocity times Cross-sectional Flow Area. The cross-sectional flow area should be in cm2 and the flow velocity should be in cm/s for this calculation.

Five easy steps may be used to determine the flow rate:

Design: circular (Full Pipe)

Circular (Partially Full)

TrapezoidalRectangular

Internal Diameter of Pipe: mcmftinch

mcmftinch for the bottom width

Dimensions: mcmftinch

Speed: m/sft/s

Volumetric Flow Rate: What is it?

The amount of liquid that moves through a given amount of space in a given amount of time is known as the volumetric flow rate, also known as the rate of liquid flow. The Q sign is commonly used to represent it.

The area of the pipe or channel a liquid is travelling through and the liquid's velocity both affect how quickly it flows.

The units.m3/s (cubic meter per second), L/min (liters per minute), ft3/sec (cubic feet per second), ft3/min (cubic feet per minute, or CFM), and gal/min (gallons per minute) are often used to quantify volumetric flow rate (gallons per minute, or GPM).

The cross-sectional area (A) for flow and the average flow velocity (v) may be used to get the volumetric flow rate (Q) as follows:

Q = A * v

For this design, a canal 8 inches deep is required. The average speed of the water is 16 feet per second. The volumetric flow rate may be calculated using the following formula:

The cross-sectional area of the channel will determine the flow rate:

Area = 3. 1415926 * (8/12 ft) * (Diameter)2 / 4

2/4 Area Equals 0.349 square feet

The pipe has a 0. 349 ft2 surface area. With the use of these data, the flow rate (Q) may be calculated as follows:

Q is defined as Area * Velocity, or 0. 349 ft2 * 16 ft/s.

Q = 5. 584 ft3/s

Answer. In this illustration, a circular channel is being filled with water at a rate of 5. 584 ft3/s.

The Flow Rate Calculation Formulas

A liquid will often flow through a pipe or channel with a circular, rectangular, or trapezoidal cross-section. This cross-sectional shape will affect the calculation used to calculate flow rate. This may be approached in a variety of ways. See them all together.

Flow Rate Calculation in a Circular or Partially Circular Pipe

The following formula may be used to calculate the cross-sectional area of a complete circular pipe.

A = * (Dimension)2/4.

You may write the flow rate (Q) as.

Q is equal to (Velocity)* * * (Diameter)2/4.

The following formula may be used to calculate a circular pipe's cross-sectional area.

A is equal to (Diameter)2/(theta sin(theta))/8)

From the pipe's center to the water's surface on each side, a line is drawn at a central angle measured in radians.

As a result, the flow rate (Q) is as follows:

Q is calculated as (Velocity) * (Diameter)2 * (theta sin(theta)) / 8)

How to Determine a Rectangular Channel's Flow Rate

The following formula may be used to calculate a rectangular channel's cross sectional area.

(Width) * A (Depth)

As a result, the flow rate (Q) is as follows.

Q = (Speed) * (Width) (Depth)

How to Determine a Trapezoidal Channel's Flow Rate

The following formula may be used to calculate a trapezoidal channel's cross sectional area.

A is equal to (Depth) x (Top + Bottom Width) / 2.

As a result, the flow rate (Q) is as follows.

Q is equal to (velocity) x (depth) x (top + bottom) / 2.