contributor author | C. A. Kot | |
contributor author | B. J. Hsieh | |
contributor author | C. K. Youngdahl | |
contributor author | R. A. Valentin | |
date accessioned | 2017-05-08T23:11:55Z | |
date available | 2017-05-08T23:11:55Z | |
date copyright | November, 1981 | |
date issued | 1981 | |
identifier issn | 0094-9930 | |
identifier other | JPVTAS-28204#345_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/95009 | |
description abstract | A generalized column separation model is extended to predict transient cavitation associated with fluid-structure interactions. The essential feature of the combined fluid-structure interaction calculations is the coupling between the fluid transient, which is computed one dimensionally, and the structural response which can be multidimensional. Proper coupling is achieved by defining an average, one-dimensional, structural velocity and by assuming a spatially uniform pressure loading of the structure. This procedure is found to be effective even for very complex finite element structural models for which the required computational time step is orders of magnitude smaller than that for the fluid transient. Computational examples and comparison with experimental data show that neglecting cavitation and setting the fluid velocity at all times equal to that of the structural boundary leads to unreal negative pressure predictions. On the other hand a properly coupled column separation model reproduces the important features of fluid-structure interactions, converges rapidly, and gives reasonable fluid and structural response predictions. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Transient Cavitation in Fluid-Structure Interactions | |
type | Journal Paper | |
journal volume | 103 | |
journal issue | 4 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.3263412 | |
journal fristpage | 345 | |
journal lastpage | 351 | |
identifier eissn | 1528-8978 | |
keywords | Cavitation | |
keywords | Fluid structure interaction | |
keywords | Fluid transients | |
keywords | Pressure | |
keywords | Separation (Technology) | |
keywords | Fluids AND Finite element analysis | |
tree | Journal of Pressure Vessel Technology:;1981:;volume( 103 ):;issue: 004 | |
contenttype | Fulltext | |