Noise generation from gas releases

[chemicalseddon]

Does anyone know if there are calculation methods available for the following?
a) Methods for estimating the noise generated by an un-ignited release of high pressure gas, eg we have a hole in a pipe and gas comes out how do we estimate the noise this generates
b) Methods for estimating the noise generated by an ignited release of gas, eg we have a hole in a pipe which releases flammable gas which then burns. Again how to estimate the noise generated - I guess this last one will be like a flare stack

 

[dtlb26]

Sorry, I have no value added to this post, but the title did bring a smile to my face. Thought this may be a personal dilemma.