SMALL-SCALE MODELLING OF THE FILLING-EMPTYING SYSTEM OF A NAVIGATION LOCK

Abstract

In this study the authors introduce a small-scale model investigation for the filling-emptying operation of the longitudinal side culvert lock chamber. The model is based on a navigation lock having been in operation for 13 years. The 92.8 m long. 12.1 m wide lock chamber with a total lift of 10.3 m and it's longitudinal side culvert filling-emptying system has been modeled in a scale of 1 : 36.67. By the variation of the filling-emptying ports (shape, size, location) and the width of the longitudinal culvert 48 series have been examined. The most important data of the series are shown in Table 1. The different arrangements of the series are shown in Figures 1-5. By the development of each variation. the ain has been oet to reduce the filling-emptying period to achieve a smooth levelling up and down, a spreading of the filling jet. and to ensure conditions minimizing the dynamical effects acting on the wessels. The economic goal was to find the smallest cross-sectional, easily constructabe longitudinal side culvert and the optimal size and shape of the filling-emptying ports.