scholarly journals COMBINED PHYSICAL AND NUMERICAL MODELLING TO INFORM OPTIMAL MARINA DESIGN

2012 ◽  
Vol 1 (33) ◽  
pp. 79
Author(s):  
Vincenzo Albanese ◽  
Keith Powell ◽  
Giovanni Cuomo
Keyword(s):  
Numerical Model ◽  
Numerical Modelling ◽  
Physical Models ◽  
Tyrrhenian Sea ◽  
Model Studies ◽  
Wide Channel ◽  
Model Study ◽  
Southern Tyrrhenian Sea ◽  
Sea Coast

A new Marina, capable of hosting up to 1,000 boats, is being constructed along the southern Tyrrhenian Sea coast of Italy. The Marina is separated from the shore by a 80 m wide channel and access to the harbour will be via a bridge designed by Santiago Calatrava. Design improvements and refinements were identified through physical and numerical model studies. This paper shows the important role of numerical and physical models in the design process of a marina. For this project the physical model study has confirmed the effectiveness of the optimised design

scholarly journals Numerical Modeling of Flow Field in Morning Glory Spillways and Determining Rating Curve at Different Flow Rates

2016 ◽  
Vol 2 (9) ◽  
pp. 448-457 ◽  
Author(s):  
Mohammad Reza Enjilzadeh ◽  
Ebrahim Nohani
Keyword(s):  
Numerical Model ◽  
Flow Field ◽  
Numerical Modelling ◽  
Relative Error ◽  
Numerical Models ◽  
Discharge Rate ◽  
Morning Glory ◽  
Physical Models ◽  
Rating Curve ◽  
Inlet Conditions

Morning glory spillways with drop inlets are normally employed in dams built on narrow valleys or placed on steep slopes. In Iran, morning glory spillways have been commonly used in large Dam projects such as Sefidrood dam, Alborz dam, and Haraz dam. Physical models should be built to accurately determine hydraulic parameters of the flow and flow field in spillways. Establishment of a physical model involves extravagant costs and conditions that cannot be justified in some cases. Therefore, suitable numerical models can be proposed for such circumstances. Using FLOW3D numerical models, 3-dimensional numerical modelling of the flow was calibrated and validated by experimental information associated with morning glory spillway of Alborz dam and accuracy of numerical modelling was determined by relative error of numerical model. So it was attempted to determine flow pattern and control conditions of morning glory spillways in different modes using boundary conditions, inlet conditions and grid spacing of flow field and project rating curve of morning glory spillways. According to the results of numerical model, relative error of numerical modelling equals 6.4% for calculating discharge rate of the spillways. Numerical modelling error is 7.6% for determining depth parameter of the flow in spillway crest in comparison with experimental results.

The key role of canyons in funnelling litter to the deep sea: A study of the Gioia Canyon (Southern Tyrrhenian Sea)

Anthropocene ◽  
2020 ◽  
Vol 30 ◽  
pp. 100237
Author(s):  
Martina Pierdomenico ◽  
Daniele Casalbore ◽  
Francesco Latino Chiocci
Keyword(s):  
Deep Sea ◽  
Tyrrhenian Sea ◽  
Southern Tyrrhenian Sea

scholarly journals THE SEISMIC BEHAVIOUR OF CURTAIN WALLS: AN ANALYSIS BASED ON NUMERICAL MODELLING

2013 ◽  
Vol 9 (4) ◽  
pp. 1-8 ◽  
Author(s):  
Mircea Bârnaure ◽  
Mihai Voiculescu
Keyword(s):  
Numerical Model ◽  
Numerical Modelling ◽  
Laboratory Testing ◽  
Limit State ◽  
Structural Behaviour ◽  
Seismic Behaviour ◽  
Curtain Wall ◽  
Service Limit State ◽  
Wall System

Abstract The paper proposes a numerical model to estimate the structural behaviour of a stickbuilt glazed curtain wall system subjected to an imposed displacement of the supports in the plane of the wall. We discuss the role of the parameters that influence on the maximum inter-storey drift corresponding to the service limit state of the wall. The considered parameters are the dimensions of the glazed panel, the gap between the panel and the aluminium frame and the gap between the supports and the mullions. We discuss the problem of remnant deformation of glazed panels, and of misalignment as serviceability criteria. Comparisons are made to laboratory testing results.

scholarly journals Numerical Modeling of Local Scour at the Junction of Open Channels in Flow3D Numerical Model

2016 ◽  
Vol 2 (9) ◽  
pp. 474-483 ◽  
Author(s):  
Behnam Shamohamadi ◽  
Ali Mehboudi
Keyword(s):  
Numerical Model ◽  
Numerical Modelling ◽  
Relative Error ◽  
Hydraulic Properties ◽  
Numerical Models ◽  
Local Scour ◽  
Physical Models ◽  
Maximum Relative Error ◽  
Flow Properties ◽  
Level Profile

At the junction of channels, the two corresponding flows of the main and submain channels are diverted from their main alignment and the form and the flow properties change at the junction. Changes in water level profile and depth of flow, velocity distribution, stagnation zone, constriction of public channel, energy loss and also formation of hydraulic jump are among the most important hydraulic variables in this location. For accurate recognition of hydraulic properties of flow and local scour at the junction of channels, physical models are made and constructed. Setting up a physical model requires many conditions and high costs which sometimes are not justifiable, hence appropriate numerical models could be proposed for such options. In this research using Flow3D numerical model, the numerical modelling of the flow has been performed in 3D form utilizing the available laboratory information which is calibrated and validated and accuracy of the numerical modelling, and the corresponding relative error are determined. The calibration and validation of the numerical model results demonstrate that the maximum relative error of the numerical model when simulating for maximum values of scour depth at the flow junction is equal to 8.2%. Also using the numerical model it was found that with passage of time in numerical model, from .....

Role of magma mixing in the pre-eruptive dynamics of the Aeolian Islands volcanoes (Southern Tyrrhenian Sea, Italy)

Lithos ◽  
2019 ◽  
Vol 324-325 ◽  
pp. 165-179 ◽  
Author(s):  
Stefano Rossi ◽  
Maurizio Petrelli ◽  
Daniele Morgavi ◽  
Francesco P. Vetere ◽  
Renat R. Almeev ◽  
...  
Keyword(s):  
Magma Mixing ◽  
Tyrrhenian Sea ◽  
Aeolian Islands ◽  
Eruptive Dynamics ◽  
Southern Tyrrhenian Sea

Diet and prey selectivity of the red mullet,Mullus barbatus(Pisces: Mullidae), from the southern Tyrrhenian Sea: the role of the surf zone as a feeding ground

2013 ◽  
Vol 10 (2) ◽  
pp. 167-178 ◽  
Author(s):  
Valentina Esposito ◽  
Franco Andaloro ◽  
Daniela Bianca ◽  
Antonino Natalotto ◽  
Teresa Romeo ◽  
...  
Keyword(s):  
Surf Zone ◽  
Tyrrhenian Sea ◽  
Prey Selectivity ◽  
Feeding Ground ◽  
Red Mullet ◽  
Mullus Barbatus ◽  
Southern Tyrrhenian Sea

scholarly journals Two-Dimensional Numerical Modeling of Flow in Physical Models of Rock Vane and Bendway Weir Configurations

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 458
Author(s):  
Drew C. Baird ◽  
Benjamin Abban ◽  
S. Michael Scurlock ◽  
Steven B. Abt ◽  
Christopher I. Thornton
Keyword(s):  
Numerical Modeling ◽  
Physical Model ◽  
Numerical Models ◽  
Hydraulic Performance ◽  
Physical Models ◽  
Protection Measures ◽  
Design Engineers ◽  
Model Study ◽  
Study Results ◽  
Wide Range

While there are a wide range of design recommendations for using rock vanes and bendway weirs as streambank protection measures, no comprehensive, standard approach is currently available for design engineers to evaluate their hydraulic performance before construction. This study investigates using 2D numerical modeling as an option for predicting the hydraulic performance of rock vane and bendway weir structure designs for streambank protection. We used the Sedimentation and River Hydraulics (SRH)-2D depth-averaged numerical model to simulate flows around rock vane and bendway weir installations that were previously examined as part of a physical model study and that had water surface elevation and velocity observations. Overall, SRH-2D predicted the same general flow patterns as the physical model, but over- and underpredicted the flow velocity in some areas. These over- and underpredictions could be primarily attributed to the assumption of negligible vertical velocities. Nonetheless, the point differences between the predicted and observed velocities generally ranged from 15 to 25%, with some exceptions. The results showed that 2D numerical models could provide adequate insight into the hydraulic performance of rock vanes and bendway weirs. Accordingly, design guidance and implications of the study results are presented for design engineers.

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