How to Model a Ducted Fan in Gambit?

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SUMMARY

This discussion focuses on modeling a ducted fan in Gambit for simulation in Fluent, specifically using the sliding mesh technique and multiple reference frame method. The user, Steve, encountered issues after performing a Boolean operation to subtract the ducted fan from a surrounding box, resulting in only one volume remaining. He seeks guidance on correctly managing the box and the ducted fan components, as the rotor is in motion while the duct remains stationary. For further insights, Steve references a PhD dissertation related to duct design.

PREREQUISITES
  • Familiarity with Gambit for geometry modeling
  • Understanding of Fluent for computational fluid dynamics simulations
  • Knowledge of Boolean operations in CAD software
  • Experience with sliding mesh and multiple reference frame techniques
NEXT STEPS
  • Research how to perform Boolean operations in Gambit effectively
  • Learn about setting up sliding mesh simulations in Fluent
  • Explore the multiple reference frame method for rotating components
  • Review the PhD dissertation referenced for advanced duct design techniques
USEFUL FOR

Mechanical engineers, CFD analysts, and anyone involved in the design and simulation of ducted fans or similar aerodynamic systems.

odane3113
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Hi, my name is Steve..

I am working on a ducted fan. I want to simulate it in Fluent in order to optimize my design. I know that sliding mesh technique and multiple reference frame method will be used but I am having problems in Gambit.

I do not know how to model it in Gambit. I have made my model in Pro Engineer and exported in IGS format. I made a box around the ducted fan and then subtracted the ducted fan (Duct + rotor) from the box using Boolean operation. But after subtracting it from Box only one volume is left.

Please can someone guide me how to handle the box and ducted fan (duct + rotor) in Gambit. Because rotor is moving and duct is stationary.
 
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If you are doing duct design you should read my friends PhD dissertation.

http://www.lib.umd.edu/drum/handle/1903/8752
 
Yes I am designing the duct. I want to estimate the thrust of ducted fan during hovering.

Thanks for the help.
 

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