Courses

Login
New User

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Environmental Engineering - Notes, Videos, MCQs & PPTs

Computer Science Engineering (CSE) : Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

The document Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev is a part of the Computer Science Engineering (CSE) Course Environmental Engineering - Notes, Videos, MCQs & PPTs.

All you need of Computer Science Engineering (CSE) at this link: Computer Science Engineering (CSE)

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.5)

Variation of C_D (Drag-coefficient)

In laminar zone, Stoke’s law is applicable

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.6)

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.7)

For transition zone, Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.8)

For turbulent zone, C_D is independent of Re and C_D=0.4

For non-spherical particles, formula for Reynold number and settling velocity calculation are modified using the shape factor ( φ ) [1]:

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.9)

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev (3.7.10)

Problem 3.7.1: A sand particle has an average diameter of 1 mm and a shape factor of 0.90 and a specific gravity of 2.1, determine the terminal velocity of the particle settling in water at 20 ^oC (kinematic viscosity of water=1.003×10^-6 m²/s and specific gravity=1). Drag coefficient can be computed using the following equation:

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Solution: kinematic viscosity(V) = Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Settling velocity using stokes law is:

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Since Re>1, therefore, Newton’s law should be used for finding terminal velocity in transition zone. For initial assumption of settling velocity, stoke’s law is used. This initially assumed velocity is used to determine the Reynold number which is further used to find settling velocity. This iterative procedure is repeated till initial assumed velocity is approximately equal to settling velocity calculated from Newton’s equation.

Initial drag coefficient is calculated as:

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Now, iterative procedure is continued:

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev

Final settling velocity=0.1419 m/s.

Offer running on EduRev: Apply code STAYHOME200 to get INR 200 off on our premium plan EduRev Infinity!

Download EduRev app here for Computer Science Engineering (CSE) preparation.

Up next

Author

Telecom Tuners

Views

182

Rating

4.9

Description

Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev notes for Computer Science Engineering (CSE) is made by best teachers who have written some of the best books of Computer Science Engineering (CSE). It has gotten 182 views and also has 4.9 rating. You can download Free Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev pdf from EduRev by using search above. You can also find Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev ppt and other Computer Science Engineering (CSE) slides as well. If you want Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev Tests & Videos, you can search for the same too. Computer Science Engineering (CSE) Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev Summary and Exercise are very important for perfect preparation. You can see some Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev sample questions with examples at the bottom of this page. Complete Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev chapter (including extra questions, long questions, short questions, mcq) can be found on EduRev, you can check out Computer Science Engineering (CSE) lecture & lessons summary in the same course for Computer Science Engineering (CSE) Syllabus. EduRev is like a wikipedia just for education and the Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev images and diagram are even better than Byjus! Do check out the sample questions of Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev for Computer Science Engineering (CSE), the answers and examples explain the meaning of chapter in the best manner. This is your solution of Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev search giving you solved answers for the same. To Study Setting and Sedimentation (Part - 1) Computer Science Engineering (CSE) Notes | EduRev for Computer Science Engineering (CSE) this is your one stop solution.

Environmental Engineering - Notes, Videos, MCQs & PPTs

56 docs|57 tests

Up next

Other Options

study material

Semester Notes

MCQs

practice quizzes