Download or read book A Vibratory approach to cavitation erosion prediction written by Francesc Xavier Escaler i Puigoriol and published by . This book was released on 2000 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction written by Ki-Han Kim and published by Springer. This book was released on 2014-07-08 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive treatment of the cavitation erosion phenomenon and state-of-the-art research in the field. It is divided into two parts. Part 1 consists of seven chapters, offering a wide range of computational and experimental approaches to cavitation erosion. It includes a general introduction to cavitation and cavitation erosion a detailed description of facilities and measurement techniques commonly used in cavitation erosion studies, an extensive presentation of various stages of cavitation damage (including incubation and mass loss) and insights into the contribution of computational methods to the analysis of both fluid and material behavior. The proposed approach is based on a detailed description of impact loads generated by collapsing cavitation bubbles and a physical analysis of the material response to these loads. Part 2 is devoted to a selection of nine papers presented at the International Workshop on Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction (Grenoble, France, 1-2 March 2011) representing the forefront of research on cavitation erosion. Innovative numerical and experimental investigations illustrate the most advanced breakthroughs in cavitation erosion research.

Download or read book Standard Test Method for Cavitation Erosion Using Vibratory Apparatus written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Method of Vibratory Cavitation Erosion Test Modificed written by F.G. Hammitt and published by . This book was released on 1975 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CAVITATION EROSION STATE OF ART AND PREDICTING CAPABILITY SUBMITTED FOR PUBLICATION APPLIED MECHANICS REVIEW ASME written by FREDERICK G. HAMMITT and published by . This book was released on 1979 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Method of Vibratory Cavitation Erosion Test modified written by Frederick G. Hammitt and published by . This book was released on 1975 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cavitation Damage Predicting Capability State of Art and Possibilities written by F. G. Hammitt and published by . This book was released on 1977 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: New results from cavitating venturi water tests are used to reinforce the concept of 'cavitation erosion efficiency', previously developed here from tests in a vibratory facility with both water and sodium. This concept emerges from a technique herein described to allow a priori prediction of eventual cavitation erosion rates in flowing machines. Bubble collapse pulse height spectra obtained from submerged microprobes are correlated with measured erosion rates in given laboratory and/or field devices to allow this prediction. Preliminary results from such correlations, along with other measurements of the effects of gas content, velocity, and cavitation condition upon 'mechanical' cavitation intensity as measured by the pulse height spectra, are here presented. New results from vibratory facility tests in tap water and synthetic sea water upon three materials of variable corrodibility (304 SS, 1018 carbon steel, and 1100-0 aluminum) are also presented. The ratio between maximum erosion rates for the salt and fresh water tests are found to increase toward unity as the mechanical cavitation intensity is increased, i.e., increased MDPR. This is expected on theoretical grounds. Finally, the relation between incubation period and maximum MDPR is examined from the vibratory test results, and found to depend upon the material properties as well as the fluid-flow conditions. (Author).

Download or read book Laboratory Evaluation of the Vibratory Cavitation Erosion Test written by J. M. Hobbs and published by . This book was released on 1967 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard method of vibratory cavitation erosion test written by Frederick G. Hammitt and published by . This book was released on 1974 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibratory Cavitation Erosion With Vibrating and Stationary Specimens written by Y. Meged and published by . This book was released on 2014 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the framework of the International Cavitation Erosion Test (ICET), 119 vibratory cavitation erosion tests were performed. Seventy of these tests were with vibrating specimens (VRV), and forty-nine with stationary specimens (VRS). From these tests, twenty tests of each type were chosen for this study. VRV tests are covered by ASTM G32-10, whereas for VRS, no standard has yet been published. This anomaly stems from the difficulties encountered in both testing and evaluating of VRS tests. All forty cavitation erosion-time curves were analyzed by the Transient Response for Erosion (TRE) method. For each curve, all three parameters were determined, namely: time lag (TL), time constant (?), and the asymptotic value of the mean depth of erosion, mean depth of erosion (MDE) MDEMAX. These parameters were further applied to calculate the scatter of test results as obtained from various specimens tested under identical conditions. This method enables the determination of the absolute and relative scatter values at any time value along the test. Finally, several guidelines are specified for preparation of a future VRS standard.

Download or read book Recommended Procedures to Test the Resistance of Materials to Cavitation Erosion written by Georges L. Chahine and published by . This book was released on 2018 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting cavitation erosion under full-scale operating conditions is difficult and relies on laboratory testing using accelerated methods such as ASTM G32-09, Standard Test Method for Cavitation Erosion Using Vibratory Apparatus, and ASTM G134-95, Standard Test Method for Erosion of Solid Materials by a Cavitating Liquid Jet. The main difficulty is that full-scale cavitation intensity is often unknown, and correlating cavitation field characteristics of the accelerated method and the full scale is not obvious. The problem is more acute for compliant polymeric coatings, used for protection or repair of parts subject to cavitation. Extensive testing of such materials shows that, unlike metallic surfaces, they are highly resistant to low-intensity cavitation but fail catastrophically when the intensity exceeds a certain threshold. Such behavior creates the risk of accepting a candidate coating for its resistance to cavitation if the coating was tested at a low cavitation intensity not representative of the application field conditions. This highlights the need to conduct tests with a range of cavitation intensities rather than a single intensity. This article uses results from extensive tests under various forms of cavitation to propose a generalized definition of cavitation intensity. It then presents data on the response of both metals and polymeric coatings to various levels of accelerated cavitation. A new method to test the coatings at varying cavitation intensities is then presented. Such tests provide maps of material resistance to different levels of cavitation and are helpful to make an informed decision. The tests also show that during cavitation exposure, the coatings are subjected not only to mechanical stress but also to significant heating, which dynamically modifies their properties during the exposure. Temperature rise in the coating when exposed to cavitation is directly connected to the cavitation intensity to which it is exposed, and this interaction needs to be considered.

Download or read book Vibratory Cavitation Erosion Testing written by J. M. Hobbs and published by . This book was released on 1964 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CAVITATION NOISE FOR DAMAGE PREDICTION written by F. G. HAMMITT and published by . This book was released on 1976 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cavitation Erosion Vibratory Cavitation and Cavitation Erosion of Metals written by S. Pedersen and published by . This book was released on 1986 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cavitation Erosion Prediction on Francis Turbines written by J. M. Dorey and published by . This book was released on 1997 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VIBRATORY CAVITATION EROSION TESTING written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Studies on the Vibratory Cavitation Erosion Testing of Metals written by A. Tuffrey and published by . This book was released on 1968 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: