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Fitting casing treatment on rotor

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Old   May 10, 2018, 10:51
Unhappy Fitting casing treatment on rotor
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Hi,
I am using bladegen to design a rotor blade row where a type of casing treatment will be attached to the rotor (image 1). I used straight lines to define the space required to attach casing treatment later. However, when I import the geometry to turbogrid or ICEM, the straight lines become curved (image 2), so the casing treatment does not fit the space perfectly. Any idea what I should do to keep their shapes as shown in bladegen? Thanks!
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Old   May 11, 2018, 07:21
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I forgot to upload a screenshot from CFX-Pre. Due to the change of shroud curve a gap arises between the casing treatment and the rotor.
Does it affect the result?


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Originally Posted by Julian121 View Post
Hi,
I am using bladegen to design a rotor blade row where a type of casing treatment will be attached to the rotor (image 1). I used straight lines to define the space required to attach casing treatment later. However, when I import the geometry to turbogrid or ICEM, the straight lines become curved (image 2), so the casing treatment does not fit the space perfectly. Any idea what I should do to keep their shapes as shown in bladegen? Thanks!
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