cfd analysis report of bike model

Air flow analysis on bike model developed in CATIA Identical to Running Model

CFD ANALYSIS REPORT OF BIKE

MODEL

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CFD Analysis by Soumya Dash on ANSYS 17.0

Index

1. Objective2. Result Summary3. Geometry4. Mesh 5. CFD Model6. Plots

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Objective:- The objective of simulation is to study aerodynamics of Bike Model

Result Summary:-

Conclusion:1. The counter for air flow velocity of 4.5m/s is generated.

Sl No.Velocity

(PArameter)Mass Flow

RateHp inlet velocity.

Hp outlet velocity. ∆V Lp inlet

Pre.Lp outlet

Pre. ∆P

[m/s] [kg/hr] [m/s] [m/s] [m/s] [kPa] [kPa] [kPa]1 2.0 21.65 2.0 2.02 0.02 0 1.68 1.682 2.5 24.27 2.5 2.86 0.36 0 2.96 2.963 4.5 31.05 4.5 5.38 0.88 0 4.85 4.854 6.5 43.65 6.5 8.63 1.86 0 8.36 8.36

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Geometry:- Bike Model Air flow domain

CFD Model derived from CAD model

CAD model

• An enclosure of air box is created around the bike CAD model for aerodynamic analysis

Inlet

Outlet

5000mm

3500mm2500mm

1000mm

1250mm3000mm

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MESH:- Bike Model

• No of cells-9.1Million• Patch Confirming Method Tet Mesh• Orthogonal quality min. 0.60• Skewness max. 0.57

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CFD Model:- Bike Model

CFD Fluent Model

Part1 Fluid AirPart2 Solid Bike aluminiumPart3 Solid tyres Rubber

HP Inlet typeVelocity rate m/s 2.0Velocity rate m/s 2.5Velocity rate m/s 4.5Velocity rate m/s 6.0

Outlet typePressure Pa 0

Pressure Pa 101325

OutletPressure outlet

No of Itrertions

Total No of Itretions 1500

Operating Conditions

Fluent CalculationsMaterial type

Inlet Velocity inlet

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Plots:- Bike Model

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Plots:- Bike Model

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Plots:- Bike Model

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Plots:- Bike Model

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Plots:- Bike Model

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Plots:- Bike Model

cfd analysis report of bike model

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