In the current study, continued efforts to improve a computational in-flight ice accretion prediction tool are introduced together with obtained results. The computational tool follows the usual proce....
This paper describes a physics-based icing tool for aircraft engines, which have small components compared to the wing geometry of an aircraft. The tool consists of an icing code, viscous CFD software....
The European Union (EU) ‘Clean Sky’ [1] Joint Technology Initiative (JTI) is a research programme aimed at developing breakthrough technologies which will minimise the impact of aviation on the enviro....
In order to correctly predict an aircraft ice accretion, the ice prediction tool shall be capable of predicting the aerodynamic characteristics of both clean and iced airfoil and be able to predict th....
In this work, a newly developed iced-aircraft modeling tool is applied to wings, engine inlets, and helicopter rotors. The tool is based on a multiscale-physics, unstructured finite-volume CFD approac....
Euler method was used in calculating the gas-liquid two-phase flow field. With the help of the user defined function (UDF) in FLUENT software, the water local collection efficiency and ice accretion o....
CFD-Icing (CFD-I) is a powerful companion to CFD-Aero (CFD-A) in the design and certification of new aircraft, rotorcraft and jet engines. It can drastically reduce the number of tunnel and flight tes....
In-flight icing is a persistent threat to aircraft safety and, in particular, the droplet impingement areas and intensity on the aircraft surfaces must be further investigated for anti-icing and de-ic....
In-flight icing is a hazard that continues to afflict the aviation industry despite all the research and efforts to mitigate the risks. The recurrence of these types of accidents has given renewed imp....
Numerically predicted roughness distributions obtained in in-flight icing simulations with a beading model are used in a quasi-steady manner to compute ice shapes. This approach, called "Multishot," u....
This paper proposes wall function models to simulate the heat transfer around a cylinder in cross flow with an isothermal and rough surface. The selected case has similitudes with aircraft wing icing:....
The irregular shapes that glaze ice may grow into while accreting over the surface of an aircraft represent a major difficulty in the numerical simulation of long periods of in-flight icing. In the fr....
The high computational cost of 3-D viscous turbulent aero-icing simulations is one of the main limitations to address in order to more extensively use computational fluid dynamics to explore the wide ....
A new technique is proposed for computing particle concentrations and fluxes with Lagrangian trajectories. This method calculates particle concentrations based on the volume of a parcel element, or cl....
Lagrangian approach has been widely adopted in the droplet impingement analysis for aircraft icing simulation. Some improvements were proposed, including: 1) The heat and mass transfer consideration i....
