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Consider the following statements in regard to the critical flow:
1. Specific energy is maximum for a given discharge.
2. Specific force is maximum for a given discharge
3. Discharge is maximum for a given specific force.
4. Discharge is maximum for a given specific energy.
1. Specific energy is maximum for a given discharge.
2. Specific force is maximum for a given discharge
3. Discharge is maximum for a given specific force.
4. Discharge is maximum for a given specific energy.
Which of these statements are correct?
- a)1, 2, 3 and 4
- b)1 and 2
- c)2 and 3
- d)3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Consider the following statements in regard to the critical flow:1. Sp...
At critical flow, specific energy and specific force is minimum for a given discharge. In other words for a given specific energy or specific force, discharge is maximum at critical flow.
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Consider the following statements in regard to the critical flow:1. Sp...
Critical flow is a flow condition in open channel hydraulics where the flow velocity equals the wave velocity, resulting in the maximum flow rate for a given channel geometry. In critical flow, the flow depth and flow velocity are uniquely related to each other, and specific energy and specific force are important parameters used to analyze and design open channel flows.
1. Specific energy is maximum for a given discharge:
Specific energy is defined as the energy per unit weight of the fluid flowing in the channel. It is given by the sum of the elevation head and the velocity head. In critical flow, the specific energy is maximum for a given discharge. This is because the flow is at its maximum efficiency, and any increase or decrease in specific energy would result in a decrease in discharge.
2. Specific force is maximum for a given discharge:
Specific force is defined as the force per unit weight of the fluid acting on the channel bottom. It is given by the sum of the gravitational force and the inertial force. In critical flow, the specific force is also maximum for a given discharge. This is because the flow is at its maximum efficiency, and any increase or decrease in specific force would result in a decrease in discharge.
3. Discharge is maximum for a given specific force:
Discharge refers to the volume of fluid passing through a cross-section of the channel per unit time. In critical flow, the discharge is maximum for a given specific force. This is because the specific force is directly related to the flow velocity, and the maximum flow velocity corresponds to the maximum discharge.
4. Discharge is maximum for a given specific energy:
Contrary to the previous statement, discharge is not maximum for a given specific energy. While specific energy is maximum in critical flow, the discharge is not necessarily at its maximum. The discharge is determined by the channel geometry, and specific energy alone does not dictate the maximum flow rate.
In summary, the correct statements regarding critical flow are:
- Specific energy is maximum for a given discharge.
- Specific force is maximum for a given discharge.
- Discharge is maximum for a given specific force.
- Discharge is not maximum for a given specific energy.
1. Specific energy is maximum for a given discharge:
Specific energy is defined as the energy per unit weight of the fluid flowing in the channel. It is given by the sum of the elevation head and the velocity head. In critical flow, the specific energy is maximum for a given discharge. This is because the flow is at its maximum efficiency, and any increase or decrease in specific energy would result in a decrease in discharge.
2. Specific force is maximum for a given discharge:
Specific force is defined as the force per unit weight of the fluid acting on the channel bottom. It is given by the sum of the gravitational force and the inertial force. In critical flow, the specific force is also maximum for a given discharge. This is because the flow is at its maximum efficiency, and any increase or decrease in specific force would result in a decrease in discharge.
3. Discharge is maximum for a given specific force:
Discharge refers to the volume of fluid passing through a cross-section of the channel per unit time. In critical flow, the discharge is maximum for a given specific force. This is because the specific force is directly related to the flow velocity, and the maximum flow velocity corresponds to the maximum discharge.
4. Discharge is maximum for a given specific energy:
Contrary to the previous statement, discharge is not maximum for a given specific energy. While specific energy is maximum in critical flow, the discharge is not necessarily at its maximum. The discharge is determined by the channel geometry, and specific energy alone does not dictate the maximum flow rate.
In summary, the correct statements regarding critical flow are:
- Specific energy is maximum for a given discharge.
- Specific force is maximum for a given discharge.
- Discharge is maximum for a given specific force.
- Discharge is not maximum for a given specific energy.
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Consider the following statements in regard to the critical flow:1. Specific energy is maximum for a given discharge.2. Specific force is maximum for a given discharge3. Discharge is maximum for a given specific force.4. Discharge is maximum for a given specific energy.Which of these statements are correct?a)1, 2, 3 and 4b)1 and 2c)2 and 3d)3 and 4Correct answer is option 'D'. Can you explain this answer?
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