variavel0=<b>Alexandre Alvim</b> - rachid@mec.uff.br Universidade Federal Fluminense
<b>Felipe Bastos Freitas Rachid</b> - rachid@mec.uff.br Universidade Federal Fluminense
<b>José Henrique Carneiro Araujo</b> - jhca@dcc.ic.uff.br Universidade Federal Fluminense
<b>Abstract.</b> In this paper a model for predicting the contaminated mixing volume arising in pipeline batch transfers is presented. The proposed technique represents an improvement over the existing methods since it takes into account time-dependent flow rates and accurate concentration-varying axial dispersion coefficients. After validating the model by comparing its predictions with a field test and other classical procedures, numerical simulations carried out have shown that the mixing phenomenon takes place continuously during the transfer with a decreasing time rate.
<b>Keywords.</b> Mixing volume evolution, Batch transfer, Pipeline.