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Basic study of leaks through a contactless seal |
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August 1, 2018, 04:14 |
Basic study of leaks through a contactless seal
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William GRUET
Join Date: Jul 2018
Posts: 1
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I am working on an IC engine project and I have to determine the leaks through a contactless seal. Abradable seals are commonly used in jet engines to seal between the turbine blades and the stator. The principle is repeated here in a different context.
The situation can be schematized as follows: determine the flow of gas passing through the opening of a seal without contacts of FIG. 1 (file attached) : We have : • a half cylinder in red, so a 2D arc (1), • a plan in blue, a line in 2D (2), • Between the two, the gap (3) with width e • In hatched red, gases under pressure (4), • In hatched blue, underneath, the outside atmosphere (5). It is desirable that the values of the following variables be modifiable, by declaring them, for example, in a file: r, arc radius (1), 10mm e the width of the joint, 0.1 mm, length 40mm The burned gases (4): pressure 80 bar, temperature 1273 ° C (for 1 / 600th of a second, but this is not important since we are interested in instantaneous flow only) Atmosphere (5): 1 bar, 273 ° C. Please contact me and tell me your conditions and delay Thanks William |
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contactless seal, leaks |
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