Displaying similar documents to “A note on an unsteady flow of an Oldroyd-B fluid.”

Start-up of channel-flow of a Bingham fluid initially at rest

Irene Daprà, Giambattista Scarpi (2004)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

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We present an analytical solution of plane motion for a Bingham fluid initially at rest subjected to a suddenly applied constant pressure gradient. Using the Laplace transform we obtain expressions which allow a direct easy calculation of the velocity, of the plug thickness and of the rate of flow as function of time.