Mechanical Engineering Exam > Mechanical Engineering Questions > When pressure drag is greater than that of fr...
Start Learning for Free
When pressure drag is greater than that of frictiondrag the shape of the body is
- a)Aerofoil
- b)Bluff
- c)Streamwned
- d)profile
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
When pressure drag is greater than that of frictiondrag the shape of t...
Explanation:
Pressure drag is caused by the separation of airflow from the surface of a body, creating a low-pressure zone behind the body. When pressure drag is greater than that of friction drag, it indicates that the shape of the body is a bluff body.
Bluff Body:
- A bluff body is a shape that creates a large wake behind it, leading to increased pressure drag.
- These bodies have a high drag coefficient due to the separation of airflow and the formation of a large low-pressure zone behind the body.
- Examples of bluff bodies include spheres, cubes, and cylinders.
- Bluff bodies are characterized by a wide cross-section and sharp edges, which contribute to the separation of airflow and the generation of pressure drag.
In contrast, streamlined bodies are designed to minimize pressure drag by smoothly guiding airflow around the body, reducing the size of the wake and the low-pressure zone behind the body. Aerofoils, also known as airfoils, are specifically designed shapes that are streamlined to generate lift and minimize drag. Profiles refer to the cross-sectional shape of the body, which can be streamlined or bluff depending on the design.
Therefore, when pressure drag is greater than that of friction drag, the shape of the body is typically a bluff body characterized by a high drag coefficient and the formation of a large wake behind the body.
Pressure drag is caused by the separation of airflow from the surface of a body, creating a low-pressure zone behind the body. When pressure drag is greater than that of friction drag, it indicates that the shape of the body is a bluff body.
Bluff Body:
- A bluff body is a shape that creates a large wake behind it, leading to increased pressure drag.
- These bodies have a high drag coefficient due to the separation of airflow and the formation of a large low-pressure zone behind the body.
- Examples of bluff bodies include spheres, cubes, and cylinders.
- Bluff bodies are characterized by a wide cross-section and sharp edges, which contribute to the separation of airflow and the generation of pressure drag.
In contrast, streamlined bodies are designed to minimize pressure drag by smoothly guiding airflow around the body, reducing the size of the wake and the low-pressure zone behind the body. Aerofoils, also known as airfoils, are specifically designed shapes that are streamlined to generate lift and minimize drag. Profiles refer to the cross-sectional shape of the body, which can be streamlined or bluff depending on the design.
Therefore, when pressure drag is greater than that of friction drag, the shape of the body is typically a bluff body characterized by a high drag coefficient and the formation of a large wake behind the body.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
|
Explore Courses for Mechanical Engineering exam
|
|
Top Courses for Mechanical EngineeringView all
When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer?
Question Description
When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer?.
When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer?.
Solutions for When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice When pressure drag is greater than that of frictiondrag the shape of the body isa)Aerofoilb)Bluffc)Streamwnedd)profileCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
|
|
Explore Courses for Mechanical Engineering 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