Re: Losses In Flow Axial-Radial
Some problem that. How do you come to have an ID of 8 with a bore of 4? ■
John Gateley johngateley@hotmail.com www.the-credible-bulk.com
Re: Losses In Flow Axial-Radial
Well, the inside diameter of the "pipe" is 8mm. The outside diameter is 18mm, leaving 5mm for wall thickness. The radial hole is 4mm. Is that the answer to your question?... ■
Re: Losses In Flow Axial-Radial
I might have been tempted to carry out a physical test rather than relying on mathematical supposition. ■
Re: Losses In Flow Axial-Radial
That is probably a good idea, but first I need to calculate the flow and pressure to ensure I have the proper pump. I was recommended some equation given in Ward-Smith "Mechanics of fluids". There are some correction factors for Vena Contracta and underlying theory. I haven't got this book available for the moment.
AND: The problems isn't getting any smaller when the flow is distributed through 2 radial holes with different diameter. What's the distribution rate??
As far as I'm informed, the discharge coefficient is constant, but this can't be correct.... (or can it?) ■
Re: Losses In Flow Axial-Radial
Bleeding air through 4mm radial holes that used to be bores is ....boring. I'm pretty sure these are bulk handling forums not excuses for witty know-it-alls to shift axes through 90 degrees.
Wait for the bleeding book. ■
John Gateley johngateley@hotmail.com www.the-credible-bulk.com
Losses in flow axial-radial
The problem is to find a mathematically derived equation that describes the loss in a radial bore in a pipe. The pipe itself has an ID of 8mm, the bore is 4mm. I will consider this as an orifice plate to simplify the problem. The wall thickness is 5mm. ■