Flow Characteristics of Viscous Fluids on the Basis of Self-Similarity Law and Its Applications to High Flow Concrete

Approximate Solution of Dam-break Flow of Low Viscosity Bingham Fluid

“…1 shows the time development curve of the front of slump flow tests with almost constant yield stress conducted by Kokado, et al 3), 4) . As pointed out by Hosoda, et al 2) , it is worth to note that the time development curves lean towards an asymptotic curve, which is characterized by 1/1 slope with the decrease of plastic viscosity. Following such observation, our motive in this study it to derive such asymptotic curve in the limit of low plastic viscosity, for a problem set in Cartesian coordinate system, which will be our first step towards obtaining a theoretical curve capable of describing the time development of the front of slump flow for a practical range of and values in the near future.…”

“…Hosoda, et al 2) pointed out that, in the case of low yield stress , the characteristics of slump flow of Bingham fluid can be explained by the time development of the front position and the height at the origin of dam-break flow of finite volume viscous Newtonian fluid. These characteristics are denoted by the power law of time.…”