Morphogenetic modelling of in-flight icing
First Claim
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1. A method of modelling in-flight icing on a surface in a fluid stream, comprising the steps of:
- identifying predetermined macroscopic physical variables relevant to ice formation in a particular fluid environment;
calculating the behaviour of individual fluid elements based on said identified macroscopic physical variables taking into account the effect on collision efficiency of non-linear droplet trajectories and the distribution of heat transfer over the airfoil; and
predicting ice accretion based on the calculated behaviour of said individual fluid elements.
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Abstract
The accretion of ice on an aerodynamic surface is predicted by identifying predetermined atmospheric parameters relevant to ice formation in a particular fluid environment. Then the behaviour of individual fluid elements is simulated based on the identified parameters to create a model of the ice accretion.
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Citations
28 Claims
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1. A method of modelling in-flight icing on a surface in a fluid stream, comprising the steps of:
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identifying predetermined macroscopic physical variables relevant to ice formation in a particular fluid environment;
calculating the behaviour of individual fluid elements based on said identified macroscopic physical variables taking into account the effect on collision efficiency of non-linear droplet trajectories and the distribution of heat transfer over the airfoil; and
predicting ice accretion based on the calculated behaviour of said individual fluid elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 21, 26, 27)
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15. A system for predicting in-flight icing on a surface in a fluid stream, comprising:
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sensors for measuring predetermined macroscopic physical variables relevant to ice formation in a particular fluid environment;
a processor for calculating the behaviour of individual fluid elements based on said identified macroscopic physical variables taking into account the effect on collision efficiency of non-linear droplet trajectories and the distribution of heat transfer over the airfoil and predicting ice accretion based on the calculated behaviour of said individual fluid elements. - View Dependent Claims (16, 17, 18, 19, 20, 22, 23, 24, 25, 28)
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Specification