Design Optimization of Subcavitating Hydrofoils for America's Cup Class Yachts - presented by Prof. Joaquim R. R. A. Martins

Design Optimization of Subcavitating Hydrofoils for America's Cup Class Yachts

Prof. Joaquim R. R. A. Martins

Prof. Joaquim R. R. A. Martins
Slide at 28:18
This work would not be possible without
Jameson's adjoint method
Then integrating by parts
Theory
ACCUMULATE THE FLUX IN THE I DIRECTI
Impact
DO 20 N=1, 4 DO 20 J=2, JL
DO 20 I=2, IL DW (I,J,N) = FS(I,J,N) -FS(I-1,J,N)
20 CONTINUE
Applications
Implementation
FLUX AT THE WALL (perp to wall
AIRPL
DO 25 I=2, IL
= X(I,1,1)
-X(I-1,1,1)
= X(I,1,2)
-X(I-1,1,2)
= P(I,2)
+P(I,1)
FS (I, 1,1) = 0.
FS(I, 1,2) = -YX*PA FS(I,1,3) = XX*PA
Fitty
ES(T.1.4) = 0
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Summary (AI generated)

In this presentation, we address both cavitation and separation constraints, building on our previous work in this area. The analysis demonstrates a rapid elimination of cavitation separation. Initially, a minor hotspot appears at the intersection; however, by appropriately shaping the airfoil at this location, we can effectively resolve the issue.

I would like to conclude by emphasizing that this work would not have been possible without the pioneering adjoint method developed by President Anthony Jameson. I am fortunate to have learned from his expertise. Throughout his career, he consistently integrated theoretical knowledge with practical implementation, creating usable codes for industrial applications that have had a direct impact on the industry.