Computation of the integral parameters of turbulent structures for the transient gas flows in pipes using wavelet transforms

Turbulent structures of simulated two-dimensional gas flows in a convergent-tube assembly of a complex pipe are analyzed by computing the morphometric parameters for the texture of two-dimensional energy fields using wavelet transforms. A new computer-aided procedure based on the decomposition of the original image of a gas flow into low-and high-frequency components using a discrete wavelet transform, calculation of the textural parameters for the high-frequency component, binary decomposition, and calculation of the morphometric parameters for the textured images is developed to analyze the flow pattern of the turbulence of transient gas flows in the assemblies of complex pipes. A new system of integral parameters computed on the basis of the binary decomposition of the textured images of gas-flow characteristics and the morphometric measurements of the parameters of flow objects in binarization sections is proposed to characterize the turbulent structure of transient gas flows in pipes.