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Flow across a flat plate.
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CFD analysis of Flat plate in a cylindrical Test SectionSuraj SinghMAE-5150
Geometry
• Geometry was built and meshed in gambit
• Flat plate is enclosed by a rectangular and cylindrical volume.
• O-Grid mesh created.
Geometry of Test section and Flat plate
Flat plateTest Section
Flat plate Mesh
Flat plate
Fluent Analysis
• Inlet velocity of M=0.2
• Aluminum is used as flat plate material
• K-epsilon was used as the viscous Model
Fluent Analysis
• Solved for a pressure based and steady state Solution
• Solution converged at 980 iterations
• Static Pressure ,Velocity and Turbulence profiles were analyzed acting on the flat plate
Scaled Residuals Plot
Pressure at Leading edge
• The pressure is max at the leading edge because the leading edge is the stagnation point of the flat plate.
Pressure(pa)
Pressure on bottom Surface
• The geometry of the plate causes more deflection of air towards the bottom surface
• This creates high velocity on the bottom surface and subsequently low pressure on bottom surface
Pressure on Top of the flat plate
• Top surface has high pressure compared to the bottom surface
Pressure(pa)
Isometric Surface view of Static Pressure
Stagnation Point
Pressure(pa)
Isometric surface view of Velocity
• No slip boundary condition on the plate
Velocity (m/s)
Velocity profile
Particle velocity
• Boundary layer on the flat plate reduces the velocity over it
Velocity (m/s)
Turbulence Profile
• Turbulence is low as the Mach number is less than 0.3
Turbulent Kinetic Energy (m2/s2)
Turbulence Profile
Future Additional Analysis
• Calculating data in a transient condition
• Determine species reactions on flat plate