Basics of Pulse Combustion Technology
Basics of Pulse Combustion Technology
Basics of Pulse Combustion Technology
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mdudt=R∫R21Dynamic mesh (2)The flapper movement is driven by the pressure difference integratedcross the cells <strong>of</strong> the valve surface and when friction is ignored2 πu= ( 0 P ′0sj−Pcsj) rdrThe variation <strong>of</strong> the flapper displacement can be calculated asΔL=n + 1t∫ ntudtrΔxn+ 1n+1i− LWhen displacement <strong>of</strong> valve plate is in between 0 and 1 mm, themesh deforms and the axial positions <strong>of</strong> its nodes are updatedand∑= ΔL=LnWhen X= 0 and 1 mm:u = 0 ΔL = 0ΔL = 0
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