# ps1 - 2.23 Hydrofoils Propellers Homework Assignment#1...

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2.23 Hydrofoils & Propellers Homework Assignment #1 Assigned: Monday February 12, 2007 Due: Friday February 19, 2007 1) Develop a matlab code to read in a propeller geometry. a) Write functions to return the camber and thickness at an input value of chordwise position (x) for a parabolic meanline and elliptical thickness distribution given max. camber and max. thickness. Parabolic meanline and elliptical thickness forms are describes as follows: f ( x ) = f o [1 ( 2 x c ) 2 ] t ( x ) = t o [1 ( 2 x c ) 2 ] b) Write a code to read in the attached blade input file. Assume the thickness and meanline distribution are elliptical and parabolic respectively. c) Then using the parabolic meanline and elliptical thickness orient compute points on the upper and lower surface of the blade at each 3D section properly in the propeller space. Use about 100 points for each side of each section d) Generate a 3D plot of the upper surface and lower surface of the entire blade. The plot of both together should look like a propeller blade.

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ps1 - 2.23 Hydrofoils Propellers Homework Assignment#1...

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