Valveless pulsejet-computational fluid dynamics

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ganuganu
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Re: Valveless pulsejet-computational fluid dynamics

Post by ganuganu » Tue Dec 19, 2017 1:54 pm

Hi Zono'

Thank you very much.

I am beginner in OpenFOAM, have just done flow past cylinder case :D :D . It will be very interesting to see these kind of simulations in OpenFOAM, eagerly waiting for your results. All the best.

Regards
Ganesh

zono
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Re: Valveless pulsejet-computational fluid dynamics

Post by zono » Mon Jan 01, 2018 9:57 pm

Dear Ganesh,

first I wish a happy New Year to all forum users!

Hopefully I will have a little more time next days to seek for my old simulation results images and animations done by Comsol Multiphysics

so long !

zono
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zono
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Comsol Multiphysics: Valveless pulsejet-computational fluid dynamics

Post by zono » Fri Jan 05, 2018 5:42 pm

hi all,

here are two examples of my linear-acoustics Simulations (CFD for poor) elaborated with Comsol Multiphysics 4.3 : ...

afwe-eigenfrequency-helmholtz4-harmonic-pipe-end_corrected-1 :
acoustic eigenmodes of a so-called "harmonic-design" (I will report on this theory in the next weeks / months)

K-PT07X-eigenfreq :
acoustic eigenmodes of a K-PT07X (full-functional valveless designed by Marten Klein, a senior-member of this forum)

K-PT07X :
same K-PT07X engine, time-dependent Simulation of acoustic linear wave equation (en.wikipedia.org/wiki/Wave_equation)

so far,
harmonic-thumb.png
zono
Attachments
K-PT07X.gif
K-PT07X-eigenfreq.gif
afwe-eigenfrequency-helmholtz4-harmonic-pipe-end_corrected-1.gif
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Mike Everman
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Re: Valveless pulsejet-computational fluid dynamics

Post by Mike Everman » Wed Jun 20, 2018 8:09 pm

Loving that first animation, Zono. Wish it went longer to see the pressure peak happen again in the CC. Love the way it shows the rarefaction waves colliding in the tail, where it would love to collapse if we use too thin a material!
Mike
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