Ramana ppt
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Transcript of Ramana ppt
![Page 1: Ramana ppt](https://reader035.fdokumen.com/reader035/viewer/2022062310/58a46cc61a28aba34c8b45e9/html5/thumbnails/1.jpg)
By:CHENNA VENKATA RAMANA
SUPER SONIC AIR CRAFT
G. PULLAREDDY ENGINEERING COLLEGE , KURNOOL
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Introduction History of Aviation Industry Principle of working Concepts Advantages Disadvantages conclusion
CONTENTS
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The first aircraft to fly supersonically in level flight was the American Bell X-1 experimental plane which was powered by a 6000-lb thrust rocket powered by liquid oxygen and ethyl alcohol.
Introduction
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History of aviation started with Kites Super sonic and Hyper sonic flights were
Introduced (which is too heavier than airjets- unscientific design)
History of Aviation Industry
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17th 18th 19th century Hydrogen Gas is discovered which leads to the invention of Hydrogen balloons.
Physicist- leads to the H-balloons with hot air
20th century- Aerodynamics made by physicist.
Innovations…
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SUPER SONIC AIR CRAFT PRINCIPLE: Flight at speeds greater than that of sound
are supersonic. The range of speeds from Mach number 0.8
to 1.2 is known as transonic
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Supersonic Configuration Concepts
Supersonic laminar flow
Tsagi SSBJ
Lockheed All-Wing
Lockheed low-boom
Oblique wing
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Evolution of Geometry ModelingCircular cross-sectionStraight tapered wing
Elliptic cross-sectionStrake modeled
Axisymmetric nacelles and spikes
Nacelles with 2D inlets
Curved leading edges2D circular nacellesSplit cross-section(different widths above and below wing)
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Large range of concepts requiring flexible, high-fidelity geometry representation
High sensitivity to geometric changes Many sources of non-smooth behavior High dimensionality search space
Supersonic Optimization Challenges
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Multidisciplinary Analysis and Design Methods
Parametric Geometry Viscous and Inviscid Analysis Tools Suite of Search Methods Multiobjective / Multipoint Optimization Multifidelity Search Experiments
Tools for Meeting The Challenges
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Applications of optimization
Basic aero/structural trades with aeroelastic constraints
High-speed lines, inlet/nozzle design, integration
Boom tailoring
Wing/body/nacelle design with transition and total drag estimation
Example Optimization Studies
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High Speed Quick Service Easy Access: No Physical Barrier: Natural Route: National Defence: No Infrastructure Investment
Advantages
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Risky: Very Costly: Small Carrying Capacity: Unreliable: Huge Investment
Disadvantages
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Thank You