conceptual design of blended wing body cargo aircraft
TRANSCRIPT
CONCEPTUAL DESIGN OF BLENDED WING BODY CARGO AIRCRAFT PRESENTED BY – PAWAN RAMA MALI
BASP - 001
Objective
Is a BWB aircraft design more aerodynamically efficient than a conventional aircraft configuration?
How does the BWB compare overall with a conventional design configuration?
What is the trade-off between conventional designs and a BWB arrangement?
What mission requirements, such as payload and endurance, will a BWB design concept become attractive for?
What are the practical issues associated with the BWB design that need to be addressed?
Statement of the Problem
This aircraft is known to have many advantages over the conventional tubular fuselage plane.
The two main aspects that blended wing body aircrafts possess are better aerodynamic efficiencies and more interior space capability.
The use of BWBs for full scale passenger aircraft is still some time away due to some problems; complications to pressurize the cabin. The issue lies within the shape.
What is a BWB ?
Features of BWB
DESIGN STAGE
COMPUTATIONAL DESIGN
A380 Aircraft Design on CATIA V5 for CFD Simulation
Design Process on HyperMesh
Modified Engine Design on TGrid3
Activities on Fluent Platform
Contours of static pressure
Initial BWB Layout Planning
Optimized BWB
L/D with Wetted Aspect Ratio
Airfoil Selection
Airfoil Shape Modification of the Main Sections for BWB
Comparison of the Wing Surface Pressure Coefficient Distribution
Contours of static pressure of the Central Wing section
Comparison of the Wing Surface Pressure Coefficient Distribution
Contours of Static Pressure of the 16 m Spanwise Wing Section
CFD Results of selected airfoils
WEIGHT ESTIMATION
Comparison of the A380 and BWB
CFD Results of the Progressive BWB without Engines
CFD Results of the Progressive BWB without Engines
CFD Results of the progressive BWB Models without Engines
CFD Result of the Baseline BWB
Improvement of Aerodynamic Capabilities of the BWB Configurations
BWB Control System
C.G. Locations of the BWB
Conclusion
BWB offers more potential than the current A380 prototype.
The empty weight of the BWB was similar to the weight of the A380, but the required fuel weight of the BWB is 45 percent less .
The TOGW of the BWB (420 tons) is 24 percent lighter than the A380 (560 tons)
The BWB design (21.43 of the L/D) achieved 1.5 times higher L/D ratio than the A380 (13.97 of the L/D). within the same flight mission segment.
The flight features of small drag value and less engine thrust requirement predict to perform with less noise emission, and make it a more environmentally-friendly vehicle.
FUTURE SCOPE OF THE STUDY
Thank You