I. K. Tsanis, H. J. Leutheusser ,"An example of transient laminar countercurrent flow,"J. Fluids Eng.,vol. 109,no.3 ,pp. 262-267.doi:10.1115/1.3242657
https://doi.org/10.1115/1.3242657
This paper presents a numerical and experimental study of transient laminar countercurrent flow in which the pressure gradient is time-dependent. An explicit finite-difference scheme is used to solve numerically the governing equations. Experimental results are obtained with a new kind of apparatus and are found to verify the numerical predictions.