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Conventional Engineering Application and Validation
产品名称

Conventional Engineering Application and Validation

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产品描述

Conventional Engineering Application and Validation

 

 

All conventional CFD simulations are carried out in AVICARI self-developed aeronautical numerical simulation platform ARI_CFD. Using commercial software standards and specifications as design basis, ARI_CFD can accept grids from self-developed software and commercial softwares like ICEM, Gridgen and Pontwise, support self-adapted grid, dynamic overset grid and deformed grid, and can be used to simulate steady and unsteady flow field with governing equation of EULER or N-S plus turbulent model. Inviscid flux difference scheme includes center difference scheme and upwind difference scheme (flux vector splitting and flux difference splitting schemes), while viscous flux spatial discretion scheme using center-type scheme. In ARI_CFD platform, there are more than 20 turbulence models (including transition model) and many boundary types to choose, simulation efficiency is improved by using multi-grid to accelerate convergence.

 

 

Standard Model Validation

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CRM standard model drag prediction

 

transonic wing surface pressure distribution
 

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highlift configuration TrapWing simulation

 

highlift configuration pressure distribution

 

 

 

ARI_CFD platform validation simulations mainly include
 
isolated wing ONERA-M6
 
wing-body DLR-F4 and DLR-F6
 
wing-body-empennage CRM
 
highlift model HiLiftPWⅠ,Ⅱ
 
Nasa-TrapWing
 
Validation results show:
 
In high precision steady aerodynamic forces prediction, precision level can reach to less than 10 counts for civil aircrafts;
 
Compared to wind tunnel test results, in pressure distribution simulation, pressure summit and shock wave position can be accurately predicted;
 
Complex shape aerodynamic characteristic simulation ability is capable.

 

 

Technical Ability:

 

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low Reynolds number model (LRN model)

 

nacelle intake and exhaust boundary application

 

 

 

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application of multi-grid technology in double wing simulation
 
 

 

ARI_CFD has a variety of advanced CFD technologies and abilities, like:
 
several turbulence models, and low Reynolds number model suitable for internal flow simulation
 
several boundary handling ability, and special boundaries like nacelle intake and exhaust boundary, flux boundary and Mach number boundary.
 
self-adapted grid handling ability
 
multi-grid accelerating convergence technology for unstructured grid.
Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待

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