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Improved convertToCylindrical for turbomachinery

Posted April 15, 2016 at 06:09 by skeptik (CFD notes)

A bit more advanced tool. Yet checked for OF 3.0+

https://github.com/engenegr/convertToCylindrical

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BEM python script for small-scale rotors

Posted November 6, 2015 at 13:28 by skeptik (CFD notes)
Updated January 29, 2016 at 14:43 by skeptik

The repository

https://github.com/engenegr/pyProp


Blade Element Momentum theory program to calculate small-scale low-Re rotor characteristics. The current implementation is useful for multirotors.

I.Evdokimov, "Blade element theory in the UAV multirotor Blade Optimization", CAE Conference Pacengo del Garda (Verona) - Italy, 19 - 20 October 2015 http://www.caeconference.com/speakers/evdokimov.html

Full text also accessible here:...
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pimpleDymFOAM and NACA 23015 rotor

Posted July 29, 2015 at 08:58 by skeptik (CFD notes)

Not bad for the first time.
PolyDualMesh. 1,9M cells.

The comparation with CFX and Russian CFD package LOGOS from

Vladimirova, N.A., CFD ANALYSIS AND CALCULATION OF AERODYNAMIC CHARACTERISTICS OF HELICOPTER ROTOR, ERF 2013.

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Impulse theory and small-scale blades

Posted May 26, 2015 at 07:37 by skeptik (CFD notes)

Very simple, very reliable impulse theory applied to small scale rotors, quad's alike, seems to be very promising.

Espesially at low velocities.

The data about propeller were obtained in thesis Isa Diana de Sousa Baptista Morais Carvalho "Low Reynolds Propellers for Increased Quadcopters Endurance",
the experimental data scrached from http://m-selig.ae.illinois.edu/props/propDB.html

Sure, it can be more precise but i've only used classical work...
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Rating: 2 votes, 4.00 average.

Propeller blade tips shape and Q

Posted March 19, 2015 at 05:01 by skeptik (CFD notes)

Red - baseline (right on Q-comparation image)
Grey - advanced tip (left on Q-comparation image)

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