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In the following situations, is the flow steady or unsteady? Explain why briefly a) Flow in...
Explain about the steady and unsteady type of flow with the following of each: 6 (1)...
Explain about the steady and unsteady type of flow with the following of each: 6 (1) Definition. (2 marks) (ii) Draw its flow pattern. (1 mark) (iii) Discuss its type in the form of mathematical form. (1 mark) (iv) It's application (1 mark)
a) Explain briefly why the core of most power transformers is made out of a magnetic...
a) Explain briefly why the core of most power transformers is made out of a magnetic material such as steel rather than wood. b) What would be the best type of motor for the following applications? 1. Driving a pump that always operates at full load? 2. A machine tool that requires precise speed or position control? c) Explain briefly when it would be optimal to produce power from a hydroelectric power plant with a large reservoir? d) Give two...
a) Describe the following types of flow and give one example: i) Steady uniform flow (2...
a) Describe the following types of flow and give one example: i) Steady uniform flow (2 marks) i) Unsteady uniform flow (2 marks) i) Unsteady non-uniform flow (2 marks) b) The power input P to a centrifugal pump is assumed to be a function of the volume flow Q, impeller diameter D, rotational rate 0, and the density p and viscosity u of the fluid. By using 0, p and D as repeating variables, develop this as a dimensionless relationship....
1,2 please!!! 1. Identify five examples of an unsteady flow and explain what features classify them...
1,2 please!!!
1. Identify five examples of an unsteady flow and explain what features classify them as unsteady 2. The velocity of water flow in the nozzle shown is given by the following expression: V = 26/(1 - 0,57,2 Where V = velocity in feet per second, t = time in seconds, x = distance along the nozzle, and L = length of nozzle 4 ft. When x = 0.5L and t = 3 s, what is the local acceleration...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
Consider steady flow of gas in a constant diameter pipe. Explain why the density decrease from inlet to outlet. (2pts) 15 lbm of Trichlorofluoromethane at 50 Psia and-10 °F held in a rigid contai...
Consider steady flow of gas in a constant diameter pipe. Explain why the density decrease from inlet to outlet. (2pts) 15 lbm of Trichlorofluoromethane at 50 Psia and-10 °F held in a rigid container is heated to 50 F. Determine the final pressure and volume of the container. (ALL WORK MUST BE IN ENGLISH UNITS). (4 pts) .
Consider steady flow of gas in a constant diameter pipe. Explain why the density decrease from inlet to outlet. (2pts) 15 lbm...
Consider the following two situations: 7) Consider the following two situations: (1) We have two charges,...
Consider the following two situations:
7) Consider the following two situations: (1) We have two charges, one positive and one negative, in an empty space (that is, nothing around them at all), as shown below. (2) We have the same two charges at the same distance from one another in a fluid composed of a large number of positive and negative ions. A) In which situation will the attractive force between these two charges be greater? Explain your reasoning. B)...
QUESTION 2 (14 marks) Explain how to form a steady uniform flow around a cylinder based on superp...
QUESTION 2 (14 marks) Explain how to form a steady uniform flow around a cylinder based on superposition (6 marks) (a) of several basic potential flows. (b) Based on the surface pressure distribution of the flow around the cylinder in (a) explain why the theoretical pressure distribution as illustrated in Fig. 1 is different (8 marks) from the corresponding experimental results. 3 Experimental Theoretical (inviscid) -3 0 30 60 90 120 150 180 β (deg) Figure 1
QUESTION 2 (14...
1. Briefly expalin why you should not add boiling chips to a boiling liquid? 2. Briefly...
1. Briefly expalin why you should not add boiling chips to a boiling liquid? 2. Briefly explain how and why you should position the thermometer in the distillation head during a distillation b) What is the purpose of the outer jacket on a fractionating column? c) How is the rate of heating adjusted when using a sand bath as a heat source? d) How is the distillate collected in a test tube microscale distillation? 3) What effect does an increase...
1) Which of the following situations most requires formal drainage design, including drain inlets, pipes, and...
1) Which of the following situations most requires formal drainage design, including drain inlets, pipes, and connection to the stormwater system? For 1 Point(s) Answer: A) A floodplain wildlife habitat B) An urban plaza completely covered by pavement C) An agricultural field D) A backyard lawn 2) The SCS method for calculating runoff is preferred for designing stormwater storage facilities because: For 1 Point(s) Answer: A) It is more complicated B) It takes duration of storm event into account C)...
Explain about the steady and unsteady type of flow with the following of each: 6 (1) Definition. (2 marks) (ii) Draw its flow pattern. (1 mark) (iii) Discuss its type in the form of mathematical form. (1 mark) (iv) It's application (1 mark)
a) Explain briefly why the core of most power transformers is made out of a magnetic material such as steel rather than wood. b) What would be the best type of motor for the following applications? 1. Driving a pump that always operates at full load? 2. A machine tool that requires precise speed or position control? c) Explain briefly when it would be optimal to produce power from a hydroelectric power plant with a large reservoir? d) Give two...
a) Describe the following types of flow and give one example: i) Steady uniform flow (2 marks) i) Unsteady uniform flow (2 marks) i) Unsteady non-uniform flow (2 marks) b) The power input P to a centrifugal pump is assumed to be a function of the volume flow Q, impeller diameter D, rotational rate 0, and the density p and viscosity u of the fluid. By using 0, p and D as repeating variables, develop this as a dimensionless relationship....
1,2 please!!!
1. Identify five examples of an unsteady flow and explain what features classify them as unsteady 2. The velocity of water flow in the nozzle shown is given by the following expression: V = 26/(1 - 0,57,2 Where V = velocity in feet per second, t = time in seconds, x = distance along the nozzle, and L = length of nozzle 4 ft. When x = 0.5L and t = 3 s, what is the local acceleration...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
Consider steady flow of gas in a constant diameter pipe. Explain why the density decrease from inlet to outlet. (2pts) 15 lbm of Trichlorofluoromethane at 50 Psia and-10 °F held in a rigid container is heated to 50 F. Determine the final pressure and volume of the container. (ALL WORK MUST BE IN ENGLISH UNITS). (4 pts) .
Consider steady flow of gas in a constant diameter pipe. Explain why the density decrease from inlet to outlet. (2pts) 15 lbm...
Consider the following two situations:
7) Consider the following two situations: (1) We have two charges, one positive and one negative, in an empty space (that is, nothing around them at all), as shown below. (2) We have the same two charges at the same distance from one another in a fluid composed of a large number of positive and negative ions. A) In which situation will the attractive force between these two charges be greater? Explain your reasoning. B)...
QUESTION 2 (14 marks) Explain how to form a steady uniform flow around a cylinder based on superposition (6 marks) (a) of several basic potential flows. (b) Based on the surface pressure distribution of the flow around the cylinder in (a) explain why the theoretical pressure distribution as illustrated in Fig. 1 is different (8 marks) from the corresponding experimental results. 3 Experimental Theoretical (inviscid) -3 0 30 60 90 120 150 180 β (deg) Figure 1
QUESTION 2 (14...
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