Investigation into the effectiveness of certification and operational icing procedures for helicopters

Simpson, M.; Render, P. M.

doi:10.2514/6.1998-750

Cited by 3 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experiment study of rotor icing has been carried out over 60 years, 2,3 including ground spraying experiments, 4 flight experiments under natural icing conditions, 5 and icing wind tunnel experiments. [6][7][8] The main research contents include rotor ice accretion, anti/de-icing system performance, 9 iced rotor aerodynamic performance test, [10][11][12] etc. In recent years, with the rapid development of computational fluid dynamics, numerical simulation technology is getting mature gradually.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of three-dimensional rotor icing in hovering flight

Wang

Zhu

2016

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

Rotor icing is a serious threat to helicopter flight safety and computational fluid dynamics technology is very useful in icing prediction. In this work, a numerical simulation method is presented to calculate three-dimensional rotor icing in hovering flight. The rotor flow fields are obtained using overlapping grids. According to Euler two-phase flow, the droplet trajectories and impingement characteristics are predicted. On the basis of three-dimensional ice accretion model, a new runback water distribution method based on shear force and centrifugal force is proposed to simulate liquid water flow and ice shape. The calculation results are compared with the experimental results under different conditions in order to verify the correctness of the method. Furthermore, the effects of blades rotation on the liquid water content distribution and droplet impingement characteristics are studied, and the effect of centrifugal force on ice shape is analyzed. The results show that the blade will influence others with the blade tip Mach number increasing, and centrifugal force will cause the ice thickness increases on leading edge and decreases at both frozen limitations.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical simulation of three-dimensional rotor icing in hovering flight

Wang

Zhu

2016

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

show abstract

EURICE - An European effort for the improvement of in-flight aircraft icing safety

Amendola

Mingione

Caihol³

et al. 1998

36th AIAA Aerospace Sciences Meeting and Exhibit

View full text Add to dashboard Cite

Experimental Study on the Effect of Different Parameters on Rotor Blade Icing in a Cold Chamber

2020

View full text Add to dashboard Cite

Icing phenomenon is an important problem in helicopter rotor design. Conducting experiments in a cold chamber is one of the main methods used to study the law of rotor icing. The purpose of this paper was to analyze the influence of different parameters on the ice shapes of rotor blade and to obtain the relationship between the ice shapes and the input parameters. The icing experimental platform of rotation blade in a cold chamber was set up, and the rotor icing experiments under various conditions were carried out. The ice shapes on the blade were obtained, and the influence of different icing temperatures, rotation speeds, liquid water content, icing times, number of blades on the rotor, and blade materials on the ice shapes were analyzed. The results showed that the ice thickness on the leading edge increased with the increase of liquid water content, rotation speed, and icing time, and the number and material of blades had little effect on icing. The conclusions of this paper can provide a reference for the rotor numerical simulation and future experimental research.

show abstract

Investigation into the effectiveness of certification and operational icing procedures for helicopters

Cited by 3 publications

References 1 publication

Numerical simulation of three-dimensional rotor icing in hovering flight

Numerical simulation of three-dimensional rotor icing in hovering flight

EURICE - An European effort for the improvement of in-flight aircraft icing safety

Experimental Study on the Effect of Different Parameters on Rotor Blade Icing in a Cold Chamber

Contact Info

Product

Resources

About