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CFD analysis of subsonic aircraft wing

part.

Hardeep Zinta,

Supervisor:-Assistant Prof. Geremes.Y.N

(XAI) National Aerospace University

Ministry of education and sciences of Ukraine.

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Introduction Analysis Result Conclusion

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IntroductionComputational fluid dynamics, usually abbreviated as CFD, is a

branch offluid mechanicsthat usesnumerical methodsand

algorithmsto solve and analyze problems that involvefluid flows.

Computers are used to perform the calculations required to

simulate the interaction of liquids and gases with surfaces defined

byboundary conditions. With high-speedsupercomputers, better

solutions can be achieved. Ongoing research yields software that

improves the accuracy and speed of complex simulation scenarios

such astransonicorturbulentflows. Initial experimental validation

of such software is performed using awind tunnelwith the final

validation coming in full-scale testing, e.g.flight tests.

https://en.wikipedia.org/wiki/Fluid_mechanicshttps://en.wikipedia.org/wiki/Fluid_mechanicshttps://en.wikipedia.org/wiki/Fluid_mechanicshttps://en.wikipedia.org/wiki/Numerical_methodshttps://en.wikipedia.org/wiki/Numerical_methodshttps://en.wikipedia.org/wiki/Numerical_methodshttps://en.wikipedia.org/wiki/Algorithmshttps://en.wikipedia.org/wiki/Algorithmshttps://en.wikipedia.org/wiki/Fluid_dynamicshttps://en.wikipedia.org/wiki/Fluid_dynamicshttps://en.wikipedia.org/wiki/Fluid_dynamicshttps://en.wikipedia.org/wiki/Boundary_conditionshttps://en.wikipedia.org/wiki/Boundary_conditionshttps://en.wikipedia.org/wiki/Boundary_conditionshttps://en.wikipedia.org/wiki/Supercomputerhttps://en.wikipedia.org/wiki/Supercomputerhttps://en.wikipedia.org/wiki/Supercomputerhttps://en.wikipedia.org/wiki/Transonichttps://en.wikipedia.org/wiki/Transonichttps://en.wikipedia.org/wiki/Transonichttps://en.wikipedia.org/wiki/Turbulencehttps://en.wikipedia.org/wiki/Turbulencehttps://en.wikipedia.org/wiki/Turbulencehttps://en.wikipedia.org/wiki/Wind_tunnelhttps://en.wikipedia.org/wiki/Wind_tunnelhttps://en.wikipedia.org/wiki/Wind_tunnelhttps://en.wikipedia.org/wiki/Flight_testhttps://en.wikipedia.org/wiki/Flight_testhttps://en.wikipedia.org/wiki/Flight_testhttps://en.wikipedia.org/wiki/Flight_testhttps://en.wikipedia.org/wiki/Wind_tunnelhttps://en.wikipedia.org/wiki/Turbulencehttps://en.wikipedia.org/wiki/Transonichttps://en.wikipedia.org/wiki/Supercomputerhttps://en.wikipedia.org/wiki/Boundary_conditionshttps://en.wikipedia.org/wiki/Fluid_dynamicshttps://en.wikipedia.org/wiki/Algorithmshttps://en.wikipedia.org/wiki/Numerical_methodshttps://en.wikipedia.org/wiki/Fluid_mechanics

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Some examples are:-

1. aerodynamics of aircraft and vehicles: lift and drag

numerical simulation of an aircraft in German aerospace center(DLR).

2. Hydrodynamics of ships.

Cfd model of ship.

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3. power plant

A CFD model simulating the flow and pressure in a reactor coolant pump at the Loviisa nuclear

power plant. The effect of modifications was simulated using the model prior to actual work being

carried out.

4. Biomedical engineering

More recently, Computational Fluid Dynamics (CFD) has emerged as a promising tool, which,

alongside experimentation, can yield insights of unprecedented detail into the hemodynamics of

prosthetic heart valves

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Analysis:-

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Theory-

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Momentum equaon 2

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ModelHere we are importing geometry from CAD

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Enclosure

Here we are taking 400mm enclosure uniformly surrounding the model.

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MeshingIn this component we are doing mesh of the model in 100 relevance.

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Set up

Doman(fluid, solid)boundary condition in fluid Doman(inlet,outlet,walls)we are

testing wing in subsonic wind tunnel, so we are putting air speed in inlet is

equal to 0.75 Mach and static pressure in outlet is equal to zero.

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Solve-we are running salutation in current data and here we are obtaining following

graphs.

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Result-In this section we obtain velocity vector, velocity streamline,counter pressure and counter velocity.

velocity vector

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velocity streamline.

pressure contour.

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velocity contour.

Conclusion.Here we are getting very high pressure in engine nacelle and front

edges of the wing and it can affect wing structure and wing skin also.so

we need here batter design salutation who will support wing shape

aerodynamically.

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References.1.

CFD Notes, Dr. PK Dyson.

2.ANSYS CFX Tutorials.

3.An Introduction to Computational Fluid

Dynamics,H.K.Versteeg and Malalasekera.

4.Applied Computational Fluid Dynamics Techniques.

5.Wikipedia

6. http://www.cfd-online.com