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Author: Rajesh Bhaskaran, Cornell University
Problem Specification
[1. Pre-Analysis & Start-up]
[2. Geometry]
[3. Mesh]
[4. Setup (Physics)]
[5. Solution]
[6. Results]
[7. Verification & Validation]
[Problem 1]
[Problem 2]
Problem Specification
Consider fluid flowing through a circular pipe of constant cross-section. The pipe diameter D = 0.2 m and length L = 8 m. The inlet velocity Ūz = 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/ m3 and coefficient of viscosity µ = 2 x 10-3 kg/(ms). The Reynolds number Re based on the pipe diameter is
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\large
$$
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= {\rho {\bar{U}}_zD \over \mu} = 100
$$
where Ūz is the average velocity at the inlet, which is 1 m/s in this case.
Solve this problem using FLUENT. 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 no.
Go to [Step 1: Pre-Analysis & Start-up]