Analysis of Hubbed Axial Flow Fan

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SUMMARY

The discussion focuses on the analysis of a hubbed axial flow fan, specifically a single-stage design intended for thrust generation rather than conventional jet engine applications. The participant seeks clarity on whether to apply the classical one-stage compressor design approach or explore alternative methodologies. Key parameters for analysis include mass flow, hub-to-tip ratio, pressure, and temperature. The Fan Handbook is recommended as a resource for further study.

PREREQUISITES
  • Understanding of hubbed axial flow fan design principles
  • Knowledge of single-stage compressor design methodologies
  • Familiarity with aerodynamic concepts such as tipspeed and Critical Mach numbers
  • Basic grasp of thermodynamic properties including mass flow, pressure, and temperature
NEXT STEPS
  • Research "hub-to-tip ratio effects on fan performance"
  • Study "single-stage axial flow fan design techniques"
  • Explore "Critical Mach number implications in propulsor design"
  • Read "Fan Handbook" for comprehensive design insights
USEFUL FOR

Engineers, aerospace designers, and students interested in propulsion systems and axial flow fan design will benefit from this discussion.

aeronautical
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Hey everybody,
I am about to make some simplistic fan analysis for a hubbed axial flow fan (Single stage). What makes me confused is if I should use the classical "one stage" approach for compressor design or if there is another way to do this?! My aim is to carry out a simplistic analysis of tipspeed or Critical Mach numbers. Now, all the material I have found consider the effects of a number stages before this can be done. But the purpose of my fan is just to provide thrust as a propulsor and not the way it is conventionally done in a jet engine. I know that I have to use: the massflow, hub to tip ratio, pressure, temperature, etc for this...Any thoughts on the approach? Does anybody know of a good book to consider. I will borrow the Fan Handbook from the library today.
 
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You are describing a propeller.

Here is a good source to learn about design.

https://www.navybmr.com/study%20material/14008a/14008A_ch8.pdf
 

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