Skip to Main Content
Notice: MindSumo will be unavailable starting at 2:00 AM EDT on Friday, August 12, 2022 for scheduled system maintenance and upgrades. The website will be down for approximately 2 hours during this maintenance period.
How can we better control mass air flow in rotating machinery?
engineering mechanical engineering physics manufacturing airflow
top 50%
47 months ago
Small pic rotate

Gas turbines have rotating and stationary blades. The stationary blades are used to guide air through the engine. Often, the first one to three rows of blades have variable guide vanes, or rotating stationary blades. Instead of rotating around the central shaft, these blades twist or pivot in place to increase or decrease the amount of air flowing into the engine and the incidence angle of the air going into the rotating airfoils.

We are looking for a new way to change this air flow. Efficiency, accuracy, and precision of this air flow profile are requirements, as this affects output, efficiency, and stresses on all of the components.

The current rotating stationary blade design is a concept has been used for decades, and we're ready for a leaner, more robust, highly reliable solution!

Successful solutions will meet these key success criteria:
- Hardware should not be in the flow path.
- For rotational designs, all blades must turn/rotate by the same amount at the same time.
- Hardware should be easy to maintain, with easy access, replacement, and repair.
- Capable of long-term use.
- Serviceability: The solution has to be retrofittable.
- Create uniform airflow.

See this video for an overview of the most recent Siemens gas turbine model:


Explain your design for the air flow control system of the future in gas turbine engines. Specifically:

  1. Submit a visual that illustrates your idea, demonstrating how control is achieved. Your visual should be an original, not something found online. CAD renderings or other high-quality formats are preferred.
  2. Explain your idea. What materials are used, how is it controlled, and what benefits does it offer?

Possible approaches include, but are not limited to, mechanical actuators with dowels, rods, hinges, and geometry dependent rotational concepts.

    Submissions will be graded on the following criteria:
  • Meets Deliverables
  • Creativity
  • Clarity
Reward Tiers
Top 10%
will share $1,000
Next 15%
will share $400
Next 25%
will share $200
Actual individual rewards will be based on the total number of eligible solutions.
$200.00 A FSHN
$200.00 Square pic 60 20220413 071449 UMaT
$200.00 Square pic 60 20200121 192854 University of Mines and Technology, Tarkwa
$200.00 V Gujarat Technological Univercity
$200.00 Picture?width=160 Seattle University
$66.70 Picture?width=160 University of Kentucky
$66.70 B Louisiana State University
$66.70 Square pic 60 ceaser img University of Nairobi
$66.70 Square pic 60 matthew gaiser calgary bow headshot  1 Queen's University
$66.70 A University of the West Indies
$66.70 M
$18.20 J Tirana University
$18.20 I Bahauddin Zakariya University
$18.20 D Tirana University
$18.20 Square pic 60 passport size photo 25 d 54756 Kerala technical University
$18.20 Picture?width=160 university of nairobi
$18.20 Square pic 60 ahahahaha Yorkville University
$18.20 Square pic 60 njphotoshootjanelle Liberty University
$18.20 Square pic 60 165d948f 34f9 465a 89a8 a031dd11d9f9 Moi University
$18.20 Square pic 60 tilisho 20180827 123654 Oxford University
$18.20 Square pic 60 jordan lake picture Duke University
$18.20 Square pic 60 j
Submission questions

0 characters Average: 1676 characters