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Critical flow at pressurized and freesurface conduits 9788301188153 Product Description read more criticalflow-by-jerzymroz.com search at, number 9788301188153 Jan 2016 by Jerzy Mroz (Author) Be the first to review this item The author proposes a redefinition of critical flow conditions that become universal for pressurised flows, free-surface flow conditions in any shape of channel crosssectional areas. In fact, the Darcy-Weisbach formula gives the head loss over the length in either a circular pipe or open channel in the same way. The crucial obstacle in the use of the Moody diagram is that one needs to know a priori the relative roughness of the channel, so in fact the information on surface structural property should be known in advance. In practical applications this is not possible. The author proposes how to tackle this problem effectively and seriously with diagrams presented in the book. The book is factual, hard-hitting and definitely provides new, never-before-published material. Product details Paperback: 146 pages Publisher: Wydawnictwo Naukowe PWN (1 January 2016) Language: English ISBN-10: 8301188154 ISBN-13: 978-8301188153 Product Dimensions: 16.5 x 1.5 x 23.5 cm Product Description Review The following does not constitute a typical editorial review as my opinion might be burdened with subjective observation of the development of the monograph. Namely, this book has been regularly updated and reviewed in consultancy with me. The following and drawbacks of this report. I am not going, however to analyze line by line the correctness of the text as this work has apparently been done by Prof. Strupczewski. This work devoted to classical problems of hydraulic research and as such in its conceptual part mostly refers to rather old literature. But examples and discussions are drawn from relatively new publications. The study in fact constitutes a reanalysis of the so-called Moody diagram which forms one of the most widely used methods for evaluating the friction factor. That classical Moody diagram shows the friction factor plotted versus the Reynolds number with a series of parametric curves related to the relative roughness. These curves were generated from experimental data. The crucial obstacle in use of the Moody diagram is that one needs to know a priori the relative roughness of the channel so in fact the information on surface textural property should be known in advance. In practical applications we are not often in such convenient situation. Author proposes how to tackle this problem effectively and seriously. In his considerations Author also proposes a redifinition of critical flow conditions which in his study become universal for the