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{alias:forced convection}

 
{include: FLUENT - Forced Convection - Panel}

h2. Problem Specification

!Forced Convection Problem Specification.png!

This tutorial will shows you how to modelsimulate a forced convection in a pipe using ANSYS FLUENT 12. The diagram shows a pipe where with a heated section in the middle, there where constant heat flux is added aat heatedthe sectionwall. The ambient air is flowing into the pipe from the left with a uniform velocity. What will be the steady state temperature at the outlet of the pipe? How will the temperature change along the pipe? We will tackle all these questions in our simulation.

h4. Available Information

*Pipe Geometry:*
Circular cross-section
Pipe radius = 2.94e-2 m
Pipe length = 6.096 m

*AirMaterial Properties:*
Ambient pressure = 98338.2 Pa (Use as reference pressure)
Coeff. of viscosity = 1.787e-5 kg/(m s)
Cp = 1005 J/(kg K)
Thermal conductivity = 0.0266 W/(m K)
Molecular weight = 28.97 g/mole

*Inlet:*
• u = 25.05 m/s
• v = 0 m/s
• T = 298.15 K
• k = 0.09 m2/s2; epsilon = 16 m2/s3 (These are not measured and are rough guess values)

*Outlet:*
• Pressure = 97225.9 Pa


*Wall:*
• Heating between x = 1.83 m and x = 4.27 m
• Wall heat flux = 3473.9 W/m2
• Wall roughness: 0 (assume smooth)
• Wall thickness: 0 (assume negligible)

*Ambient conditions:*
• Ambient pressure = 98338.2 Pa


*[*Go to Step 1: Pre-Analysis & Start-Up*|FLUENT - Forced Convection - Step 1]*

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