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Author: Rajesh Bhaskaran, Cornell University

{color:#ff0000}{*}Problem Specification{*}{color}
[1. Pre-Analysis & Start-up|FLUENT - Turbulent Pipe Flow - Step 1]
[2. Geometry|FLUENT - Turbulent Pipe Flow - Step 2]
[3. Mesh|FLUENT - Turbulent Pipe Flow - Step 3]
[4. Setup (Physics)|FLUENT - Turbulent Pipe Flow - Step 4 *New]
[5. Solution|FLUENT - Turbulent Pipe Flow - Step 5 *New]
[6. Results|FLUENT - Turbulent Pipe Flow - Results CFD Post]
[7. Verification & Validation|FLUENT - Turbulent Pipe Flow - Step 7 CFD Post]
[Problem 1|FLUENT - Turbulent Pipe Flow - Problem 1]
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h2. Problem Specification

!Fluent_pipeflow.jpg!

Let's revisit the pipe flow example considered in the previous exercise.          As before, the inlet velocity is 1 m/s, the fluid exhausts into the ambient          atmosphere and density is 1 _kg/m{_}{_}{^}3{^}_. For µ = 2          x 10 ^\-5^ _kg/(ms_), the Reynolds no. based on the pipe diameter          and average velocity at the inlet is
{latex}
\large
$$
{Re} = {\rho VD \over \mu} = 10,000
$$
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This change of viscosity has taken us from a Reynolds number of 100 to 10,000.  At this Reynolds number, the flow is usually completely turbulent.

We'll solve this problem numerically using ANSYS FLUENT. Among the results we'll look at are centerline velocity, skin friction coefficient and the axial velocity profile at the outlet.



Go to [Step 1: Pre-Analysis & Start-up|FLUENT - Turbulent Pipe Flow - Step 1]

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