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Author: Rajesh Bhaskaran, John Singleton, Cornell University

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

!Fluent_pipeflow.jpg!\\
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Consider fluid flowing through a circular pipe of constant radius as illustrated above. The pipe diameter _D_ = 0.2 m and length _L_ = 8 m. The inlet velocity _Ū{_}{_}{~}z{~}_ = 1 m/s. Consider the velocity to be constant over the inlet cross-section. The fluid exhausts into the ambient atmosphere which is at a pressure of 1 atm. Take density _ρ = 1 kg/ m{_}{_}{^}3{^}_ and coefficient of viscosity _µ = 2 x 10{_}{_}^\-3{^}_ _kg/(ms)._ The Reynolds number _Re_ based on the pipe diameter is
!eqn1220.png!\\
where _Ū{_}{_}{~}z{~}_ is the average velocity at the inlet, which is 1 m/s in this case.

Solve this problem using FLUENT via ANSYS Workbench. Plot the centerline velocity, wall skin-friction coefficient, and velocity profile at the outlet. Validate your results.

Note: The values used for the inlet velocity and flow properties are chosen for convenience rather than to reflect reality. The key parameter value to focus on is the Reynolds number.
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[Go to Step 1: Pre-Analysis & Start-up|FLUENT - Laminar Pipe Flow - Pre-Analysis & Start-Up]

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