Hello there,
I am working on a simulation of a rotary engine ( Similar to Wankel engine). The situation is as below.
The stator is steady and rotor is rotating at 580 RPM. I am using dynamic mesh. To get the perfect sealing, there must be a contact between stator and rotor. I can not model the perfect contact between rotor and stator due to dynamic mesh. So there is a little gap between stator and rotor at the contact point.
Can anybody suggest me that how can I eliminate the gap Or to create a sealing which works with the dynamic mesh, which can eliminate a gap and helps to prevent leakage problem. Herewith I have attached a meshing and the sealing problem.
Thank you in advance.
Parth Panchal
Hi Sir,
Thank you for your response.
I got your point. I can model it, but the real problem is with the dynamic meshing. Apex seal is going to share its boundary as well as mesh points with the rotor and stator. One is stationary and another is rotating at 580 RPM. I am working on ANSYS fluent. When rotor rotates, it will deform the apex seal instead of moving it along with rotor. ( The reason for this is, the other boundary of apex seal is connected to stator.)
This is the problem where I have stuck up. Please let me know if there are any other alternatives to create this sealing or eliminate the gap by any other means.
Thankfully,
Parth
I did a quick check re ANSYS products vs. combustion engines.
Seems ANSYS CFX should be able to serve your needs. Not so sure about A* fluent.
Thus - if feasible - you may want to change the tool.
But I'm sure you could get in contact with ANSYS asking whether there are some 'tricks' to do the job with fluent.
Wish you success
Hello Sir,
Thank you for your time. I will surely try to contact them and otherwise as you mentioned will try with CFX.
Parth
Thank you sir for your response and paper links.
Yes, you are right. CFD simulations might help to improve the problems associated with the rotary type IC engines. As it is little complicated as compared to reciprocating engine to simulate in CFD, but it is possible with few simplifications.
Thanks,
Parth
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