AUTOLAY………generation and adaptation, pre and post processing tools etc

You have any idea which CFD they are using for Avatar project? I know Eulers code is being one of them.

Castor,

Its no substitute to Wind Tunnel or Flight testing. You see its a faster aid to develop stuff ypu already know. If you have a new gen aircraft and it needs testing, you got to physically test it. Once you have the parameters, you build it into a software. So next time you have to builds its varient, you need not do the testing again. Again, you don’t get flight worthiness certificates without testing.

The basic rule here is that softwares are not intelligent. If you feed in the parameters , they can crunch numbers faster within the set parameters set.

Finite Elements Modeling is dated back into early eighties, the mathematical theory goes as far back as with Gauss, Euler, Descartes and Fourier, definitely nothing that could be even called US-made, even if the first widespread codes on the market were from Pittsburgh.

I remember one of the first really optimised objects was the tennis racquet, which has been given the twin-beam shape after the optimization performed by a German aerospace Schlenker scientist using self-made FEM-code. Interesting enough, he was using the Yin-Yang principle of transfering ‘hot’ and ‘cool’ vibrational energy.

French have bought a ADA software called “AUTOLAY.” A-380 was made on Autolay.However Autolay is a Autocad software, http://www.ada.gov.in/Products/autolay/autolay.html

Wanna outsource ? :diablo:

http://www.ada.gov.in/Activities/Software/cfd/cfd.html

CFD Tool Kit and its Application

Aeronautical development Agency(ADA) has taken up the task of design and development of the Light Combat Aircraft (LCA), In order to carry out this task, ADA has provided continuous thrust to develop CFD tools for the aerodynamic design/analysis of LCA since 1986, through both in-house efforts and sponsored projects.

Significant progress has been made in the development of CFD codes for design and analysis and also in the area of grid generation and past-processing, As a design tool, ADA has developed a panel code for complete aircraft with ground effect at small angles of attack and side slip. For transonic flow regime, full potential field integral code of ADA, which uses cartesian field grid with surface panelling, can handle complete aircraft including external stores and control surface deflections. Full potential code based on cartesian grid is a very useful tool for design and analysis of complex aircraft configuration since its turn-around time is small. For higher angles of attack and side slip at all speeds, multi-block Euler code capable of handling complex configuration has been developed. Further, specialised codes such as RANS codes for internal/external flows have also been developed. For unsteady flow, codes have been developed for subsonic and transonic speeds for wing-body configuration (both rigid and flexible shapes) using transonic small perturbation (TSP) theory and vartex lattice method (VLM).

Tool Kit at ADA

Panel code capable of handling complete aircraft configuration with ground effect at subsonic speeds.
Inverse design code for laminar super crittical airfoil.
Full potential field integral code using cartesian grid for complete aircraft with external stores at transonic speeds.
Multi-block finite volume Euler code for realistic aircraft configuration.
Finite volume RANS code for intake duct
Implicit turbulent RANS code for external flow over 3-D bodies.
Grid generator with surface modeller.

Utilisation of CFD Codes at ADA
Wing design
Fuselage shape optimization
Evaluation of incremental changes in configuration
Pylon reshaping for reducing interference drag
Estimation of optimal deflection of leading edge devices.
Prediction of Aerodynamic loads
Calibration of Air data sensors
Trajectory prediction of external stores
Evaluation of performance of intake duct

other stuff

http://www.ada.gov.in/Products/products.html

I am in similar business. If you give wrong input, you get wrong out put. What software they were using?

http://www.protonriver.com/ae2005/

Batch 3 and 4 pictures uploaded.

Let me explain.

INS Vikramaditya will carry KA-31 as well as E2C. E2C is for larger distance to be operated in tandem with MiG-29K’s. There is no point to send E2C data to be sent to Ship, as the its for far away ops. KA-31 will provide AEW for carrier protection and makes sence to datalink with INS V.

IAF too acquired Phalcons rather than A-50 because of the same reason.

So the visit by NG that should be occuring this according to the previuosly posted Hindu Times article will just be for the formal presentation of these findings? You’ve used other words elsewhere so I assume when you say “fit” you mean more than it just fits on the deck and hangar right? I mean they didn’t actually just say it fits did they?

Daniel

What they ment was it could land and take off.