With the inner ring groove (IRG) alone, it promotes radial flow and gas leakage. The gas flow visualization results of the four types of test seals are shown in Figure 9. Firstly, from the ...

"The blades take about 10 gallons of water per minute." "Every 3/4 of an inch one blade stuck down deeper to give a groove texture in the pavement. So it was a combination of grinding and grooving ...