This paper deals with three dimensional analytical investigation on the gas flow through exhaust valve and with the experimental study to prove it.
We have calculated the flow pattern and the shape of dead water region by extending two dimensional flux analysis method to three dimension for the exhaust valve with the lift of 20 mm, pressure drop of 50 mmAq, as an example.
We made tests by the stream line wind tunnel of three dimensional type and found that the flow pattern and dead water region in the three dimensional flow obtained from the analytical investigation have shown good coincidence to those from the experimental study same as in the two dimensional case.
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