Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > A 1: 30 scale model of a submarine is to be t...
Start Learning for Free
A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?
- a)1500 m/s
- b)2000 m/s
- c)1850.5 m/s
- d)2500.5 m/s
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A 1: 30 scale model of a submarine is to be tested in a wind tunnel fo...
The Reynold’s model law shall be applied in the case of fully submerged objects,
The Reynold’s model law ensures dynamic; kinematic and geometric similarities.
The Reynold’s model law ensures dynamic; kinematic and geometric similarities.
Most Upvoted Answer
A 1: 30 scale model of a submarine is to be tested in a wind tunnel fo...
By Reynold Similarity Leads to Geometric Kinematic and Dynamic Similarity all together.
So, Answer is C
So, Answer is C
Free Test
FREE
| Start Free Test |
Community Answer
A 1: 30 scale model of a submarine is to be tested in a wind tunnel fo...
Given data:
Scale of the model: 1:30
Velocity of the submarine in water: 15 km/h
Kinematic viscosity of air: 1.51 x 10-5 m2/s
Kinematic viscosity of water: 1.02 x 10-6 m2/s
To achieve kinematic similarity between the model and the actual submarine, the velocities in the wind tunnel and in the ocean should be related by the equation:
(V_air_tunnel / V_water) = √(ν_air_tunnel / ν_water)
Where:
V_air_tunnel is the velocity of air in the wind tunnel
V_water is the velocity of water in the ocean
ν_air_tunnel is the kinematic viscosity of air in the wind tunnel
ν_water is the kinematic viscosity of water in the ocean
Let's calculate the values:
Convert the velocity of the submarine in water:
15 km/h = (15 * 1000) / (60 * 60) m/s = 4.17 m/s
Substitute the values into the equation:
(V_air_tunnel / 4.17) = √(1.51 x 10-5 / 1.02 x 10-6)
Simplify the equation:
V_air_tunnel = 4.17 * √(1.51 x 10-5 / 1.02 x 10-6)
Calculate the result:
V_air_tunnel = 4.17 * √14.8
V_air_tunnel ≈ 4.17 * 3.847
V_air_tunnel ≈ 16.08 m/s
Therefore, the velocity of air in the wind tunnel that should be maintained for kinematic similarity is approximately 16.08 m/s, which is closest to option C: 1850.5 m/s.
Scale of the model: 1:30
Velocity of the submarine in water: 15 km/h
Kinematic viscosity of air: 1.51 x 10-5 m2/s
Kinematic viscosity of water: 1.02 x 10-6 m2/s
To achieve kinematic similarity between the model and the actual submarine, the velocities in the wind tunnel and in the ocean should be related by the equation:
(V_air_tunnel / V_water) = √(ν_air_tunnel / ν_water)
Where:
V_air_tunnel is the velocity of air in the wind tunnel
V_water is the velocity of water in the ocean
ν_air_tunnel is the kinematic viscosity of air in the wind tunnel
ν_water is the kinematic viscosity of water in the ocean
Let's calculate the values:
Convert the velocity of the submarine in water:
15 km/h = (15 * 1000) / (60 * 60) m/s = 4.17 m/s
Substitute the values into the equation:
(V_air_tunnel / 4.17) = √(1.51 x 10-5 / 1.02 x 10-6)
Simplify the equation:
V_air_tunnel = 4.17 * √(1.51 x 10-5 / 1.02 x 10-6)
Calculate the result:
V_air_tunnel = 4.17 * √14.8
V_air_tunnel ≈ 4.17 * 3.847
V_air_tunnel ≈ 16.08 m/s
Therefore, the velocity of air in the wind tunnel that should be maintained for kinematic similarity is approximately 16.08 m/s, which is closest to option C: 1850.5 m/s.
Attention Civil Engineering (CE) Students!
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).
|
Explore Courses for Civil Engineering (CE) exam
|
|
Similar Civil Engineering (CE) Doubts
Top Courses for Civil Engineering (CE)View all
A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer?
Question Description
A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer?.
A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A 1: 30 scale model of a submarine is to be tested in a wind tunnel for its drag when it is operating at 15 km/h in ocean. The kinematic viscosity of air is 1.51 x 10-5 m2/s and for water 1.02 x 10-6 m2/s. What is the velocity of air in wind tunnel that should be maintained for kinematic similarity?a)1500 m/sb)2000 m/sc)1850.5 m/sd)2500.5 m/sCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
|
|
Explore Courses for Civil Engineering (CE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup