Sensitivity Analysis of Wave and Current in Numerical Modeling and Comparison with Field Measurements During Small Storms in Northern Ports of Iran

Koohzad, Rasul; Dezvareh, Reza

doi:10.22034/ijcoe.2025.481446.1099

Sensitivity Analysis of Wave and Current in Numerical Modeling and Comparison with Field Measurements During Small Storms in Northern Ports of Iran

Articles in Press

Document Type : Original Research Article

Authors

Rasul Koohzad ¹

Reza Dezvareh ²

¹ Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran

² Associate Professor, Faculty of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran

10.22034/ijcoe.2025.481446.1099

Abstract

This study conducts a sensitivity analysis of wave and current behavior during minor storms along the southern coast of the Caspian Sea, focusing on the port of Nowshahr, a significant maritime hub in northern Iran. Using MIKE21, a numerical modeling software, the analysis evaluates various parameters such as mesh size, angular divisions, bed roughness, and wave breaking coefficients. The numerical models were calibrated and validated by comparing their outputs with field measurements obtained during small storm events. Results indicate that certain parameters, such as computational grid size and wave breaking coefficients, significantly influence model accuracy, while others, such as angular divisions, have minimal impact. Wind data from ECMWF-ERA5 was used to simulate local conditions accurately. The findings provide insights into optimizing numerical model calibration for improved predictions of wave and current behavior, particularly under storm conditions, thereby supporting coastal engineering projects and enhancing understanding of marine hydrodynamics in this region.

Keywords

Hydrodynamics

Caspian Sea

Flow Model

Nowshahr

Mike 21

Subjects