# Question: What is specific force in open channel?

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Specific force is defined as the non-gravitational force per unit mass. For free bodies, the specific force is the cause of, and a measure of, the bodys proper acceleration. The g-force acceleration is the same as the specific force.

## What is specific energy in open channel flow?

In open channel flow, specific energy ( e ) is the energy length, or head, relative to the channel bottom. It is also the fundamental relationship used in the standard step method to calculate how the depth of a flow changes over a reach from the energy gained or lost due to the slope of the channel.

## What is specific force and specific energy?

Specific force is defined as the non-gravitational force per unit mass. Whereas Specific energy is energy per unit mass. (It is also sometimes called energy density, though energy density more precisely means energy per unit volume.) ...

## What is specific force in hydraulics?

Specific force is the sum of the momentum flowrate and the hydrostatic thrust on a cross sectional area normal to a parallel flow, divided by the specific weight of the flowing liquid. It has the dimensions of length cubed and is also known by other names including specific momentum and specific thrust.

## What is specific force specific energy diagram?

For given values of unit discharge, q, a specific energy diagram depicting energy and the depth of water, y, can be developed. The specific energy is the energy above the datum, which we have chosen as the bottom of the channel.

## What is the formula of specific energy?

Write pressure in terms of depth (y = p / γ). = 0). i.e. where y is the depth of flow, v is the velocity, Q is the discharge, A is the cross- sectional flow area and E is the specific energy i.e energy w.r.t channel bottom.

## What is a critical depth?

Critical depth is also the depth of maximum discharge, when the specific energy is held constant. Normal Depth: For a given channel geometry, slope, and roughness, and a specified value of discharge Q, a unique value of depth occurs in a steady uniform flow.

## Which is the specific force?

Specific force is defined as the non-gravitational force per unit mass. Specific force (also called g-force and mass-specific force) is measured in meters/second² (m·s−2) which is the units for acceleration. The g-force acceleration is the same as the specific force. ...

## What is specific energy equation?

Total energy = Datum height + specific energy = 2.0 + 1.20 = 3.20 m. 2.

## What is specific force curve?

It is defined as the force at any section which is equal to sum of the momentum of the flow passing through the channel section per unit time per unit weigh of water and the force per unit weight of water. For a given value of the specific force, the curve has two possible depths y1 and y2.

## What is specific energy formula?

Write pressure in terms of depth (y = p / γ). = 0). i.e. where y is the depth of flow, v is the velocity, Q is the discharge, A is the cross- sectional flow area and E is the specific energy i.e energy w.r.t channel bottom.

## What is specific force denoted as?

Specific force is defined as the non-gravitational force per unit mass. Specific force (also called g-force and mass-specific force) is measured in meters/second² (m·s−2) which is the units for acceleration.

## What is the unit of specific energy?

Specific energy or massic energy is energy per unit mass. Specific energy is an intensive property, whereas energy and mass are extensive properties. The SI unit for specific energy is the joule per kilogram (J/kg).

## Which fuel has the highest specific energy?

hydrogen The highest energy content fuel is hydrogen, which is also the simplest chemical component in existence. Gasoline, which is derived from refining crude oil, contains much more energy than coal (twice than the lower grade bituminous) or wood (three times).

## How do you find critical depth?

The critical depth for a rectangular channel can be calculated from the fact that the Froude number is equal to one at critical flow conditions. For a rectangular channel , this fact leads to the equation: Vc/(gyc)1/2 = 1, where the subscript c is used to indicate critical flow conditions for the velocity and depth.

## What is critical depth ocean?

In biological oceanography, critical depth is defined as a hypothetical surface mixing depth where phytoplankton growth is precisely matched by losses of phytoplankton biomass within the depth interval. This concept is useful for understanding the initiation of phytoplankton blooms.

## What is specific force denoted by?

Specific force is defined as the non-gravitational force per unit mass. Specific force (also called g-force and mass-specific force) is measured in meters/second² (m·s−2) which is the units for acceleration.

## What is specific energy of flow?

The specific energy Es of a liquid in an open channel is the total mechanical energy (expressed as a head) relative to the bottom of the channel. The specific energy reaches a minimum value Es, min at some intermediate point, called the critical point, characterized by the critical depth yc and critical velocity Vc.

## What are the four main types of forces?

fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay.

## Whats the magnitude of a force?

The magnitude of the force is defined as the sum of all the forces acting on an object. Calculating magnitudes for forces is a vital measurement of physics. The magnitude of a force is its size or strength, in spite of the path in which it acts. The equation below is the sum of N forces acting on an object.