On the Non-Newtonian Laminar Flow in the Region near the Entrance of a Circular Pipe
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In this article, the velocity distribution and the pressure gradient of the non-Newtonian laminar flow in the region near the entrance of a circular pipe were calculated and a correction of the pressure loss Δq for different values of n was made as shown in Fig. 3.Abstract:
According to Prandtl's suggestion, the author calculated the velocity distribution and the pressure gradient of the non-Newtonian laminar flow in the region near the entrance of a circular pipe. The results are summarized as follows:1) Though the inlet length for the Newtonian flow, when n=1, was not in agreement with the results of the author's calculation, the change in the inlet length for the non-Newtonian flow, when the values of n were varied, could be roughly estimated as shown in Fig. 3.2) The pressure loss in the Newtonian flow, when n=1, was in good agreement with the results of the author's calculation. Therefore, on the assumption that the pressure loss in the non-Newtonian flow with different values of n would be in good agreement with the experimental results, too, the correction of the pressure loss Δq for different values of n was made as shown in Fig. 5read more
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Book ChapterDOI
Heat Transfer in Non-Newtonian Fluids
TL;DR: This chapter provides the general survey of rheological behavior necessary for an understanding of transport processes in non-Newtonian fluids.
Journal ArticleDOI
Pressure losses in non‐Newtonian entrance flows
J. L. Duda,James S. Vrentas +1 more
Book ChapterDOI
Non-Newtonian Viscosities and the Equation of Motion
TL;DR: A review of non-Newtonian fluid mechanics is given in this paper, where the authors focus on attempts to formulate rheological equations of state which are mathematically acceptable.
An Experimental Study of Viscoelastic Flow in a Conical Entrance Region
Boles,Raymond Leslie +1 more
TL;DR: In this paper, an experimental study has been made of the pressure drop in the conical entrance region to a capillary tube, and two fluids, a Newtonian oil and a viscoelastic polymer solution, were used.
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