Re: Water Distribution Tube
Posted by HH56 On 2017/4/11 9:36:06
Here is a bit from Packard re design and hole placement in the distribution tube.
As to the size of the openings I vaguely remember something from physics class having to do with water flowing out of openings in a pipe. It has something to do with linear flow past an opening vs forced flow thru an opening where it cannot go any farther and also something about total volume available.
My vague memory and many years since class remembers water flowing past an opening such as it would be if going out the openings directly behind the source or the pump in this case will not flow out as fast as it would be if being forced thru an opening such as when going thru the rear openings near the closed end of the tube. I believe the total volume of water available also comes into play since a lot of the water will be gone by the time the rear of the tube is reached. There would be a need for smaller holes to "squirt" the remaining volume harder to reach the seats.
I believe that is the reason for the larger openings in the front -- equalize flow so relatively the same amount of linear flow water reaches the front valves as the remaining water which is being forced out the closed end of the tube thru the smaller openings to the rear valves.
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As to the size of the openings I vaguely remember something from physics class having to do with water flowing out of openings in a pipe. It has something to do with linear flow past an opening vs forced flow thru an opening where it cannot go any farther and also something about total volume available.
My vague memory and many years since class remembers water flowing past an opening such as it would be if going out the openings directly behind the source or the pump in this case will not flow out as fast as it would be if being forced thru an opening such as when going thru the rear openings near the closed end of the tube. I believe the total volume of water available also comes into play since a lot of the water will be gone by the time the rear of the tube is reached. There would be a need for smaller holes to "squirt" the remaining volume harder to reach the seats.
I believe that is the reason for the larger openings in the front -- equalize flow so relatively the same amount of linear flow water reaches the front valves as the remaining water which is being forced out the closed end of the tube thru the smaller openings to the rear valves.
Attach file:
(97.22 KB) (175.46 KB)
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