Civil Engineering (CE) Exam  >  Civil Engineering (CE) Questions  >   Apart from frictional drag a ship or submari... Start Learning for Free
Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.
The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.
For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as
(Multiply your answer by 1000 and give the value).
Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer?
Verified Answer
Apart from frictional drag a ship or submarine experiences a wave dra...
The wetted surface of the model may be considered equivalent to a flat plate 3 m long and having a surface area of 4 m2.
Reynolds number,
Obviously the flow is turbulent in the boundary layer. Assuming that abrupt transition from laminar to turbulent flow occurs at a Reynolds number of 5 × 105, the drag coefficient appropriate to this Reynolds number is given by
= 2.81 × 10−3
Frictional drag on the surface of model submarine is,
Total measured drag = skin friction drag + wave drag ∴ Wave drag = 60 − 35.125 = 24.875 N Wave drag coefficient
View all questions of this test
Most Upvoted Answer
Apart from frictional drag a ship or submarine experiences a wave dra...
The wetted surface of the model may be considered equivalent to a flat plate 3 m long and having a surface area of 4 m2.
Reynolds number,
Obviously the flow is turbulent in the boundary layer. Assuming that abrupt transition from laminar to turbulent flow occurs at a Reynolds number of 5 × 105, the drag coefficient appropriate to this Reynolds number is given by
= 2.81 × 10−3
Frictional drag on the surface of model submarine is,
Total measured drag = skin friction drag + wave drag ∴ Wave drag = 60 − 35.125 = 24.875 N Wave drag coefficient
Explore Courses for Civil Engineering (CE) exam

Similar Civil Engineering (CE) Doubts

Top Courses for Civil Engineering (CE)

Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer?
Question Description
Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. 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 Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. 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 Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer?.
Solutions for Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. 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 Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer?, a detailed solution for Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer? has been provided alongside types of Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Apart from frictional drag a ship or submarine experiences a wave drag as well and similar to skin-friction coefficient, a wave drag coefficient is defined.The length of the model of a submarine is 3 m and its wetted surface area is 4 m2 . When it is towed in fresh water at 2.5 m/s, it experiences a total drag of 60 N. Make calculations for the average wave drag coefficient.For fresh water: ρ = 1000 kg/m3 and ν = 1 × 10−6 m2/s In case, the boundary layer at trailing edge is turbulent, the average drag coefficient is given as(Multiply your answer by 1000 and give the value).Correct answer is 'Range: 1.95 to 2.00'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
Explore Courses for Civil Engineering (CE) exam

Top Courses for Civil Engineering (CE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev