Author:
Machfudin Andik,Dinariyana A.A.B.,Sari Dian
Abstract
Verification and validation (V&V) are essential processes in computational simulations that aim to evaluate the accuracy and reliability of the results compared to experimental data. The quantification of error and uncertainty estimates is crucial in V&V. In this particular study, the open water test of a four-bladed B-series propeller model at 1/6.98 scale was conducted for three advanced coefficients (J = 0.50, J = 0.60, and J = 0.70) at the Indonesian Hydrodynamic Laboratory (IHL). The simulation was conducted under experimental conditions using FINE/Marine 7.2. Verification was performed to estimate the error 𝛿*REG and the numerical uncertainty USN according to the ITTC convergence ratio R and order of accuracy 𝑃𝐺. The average uncertainty estimated for the thrust and torque coefficient was found to be between 1.72% to 4.81%, with a 95% confidence level. Reducing errors and uncertainties associated with verification and validation in open-water experiments can increase the reliability of numerical simulations.
Publisher
Centre for Evaluation in Education and Science (CEON/CEES)
Subject
Mechanical Engineering,General Engineering,Safety, Risk, Reliability and Quality,Transportation,Renewable Energy, Sustainability and the Environment,Civil and Structural Engineering
Reference36 articles.
1. Stern, F., Wilson, R. V., Coleman, H. W., Paterson, E. G. (2001). Comprehensive approach to verification and validation of CFD simulations-Part 1: Methodology and Procedures. Journal of Fluids Engineering, vol. 123, 2001, 793-802, DOI: 10.115/1.1412235;
2. Lungu, A. (2021). Numerical assessment of twin-propeller performances. IOP Conference Series: Earth and Environmental Science 2021, p. 012022;
3. Wang, J., Wan, D., Maksoud, M. A. (2020). CFD investigations of ship propulsion performance at different trim angles. International Ocean and Polar Engineering Conference 2020, vol. 30;
4. Nouroozi, H., Zeraatgar, H. (2019). A reliable simulation for hydrodynamic performance prediction of surfacepiercing propellers using URANS method. Applied Ocean Research, vol. 92, 2019, 101939, DOI :10.1016/j.apor.2019.101939;
5. Long, Y., Han, C., Ji, B., Long, X., Wang, Y. (2020). Verification and validation of large eddy simulations of the turbulent cavitating flow around two marine propellers with emphasis on the skew angle effects. Applied Ocean Research, vol. 101, January 2020, 102167, DOI: 10.1016/j.apor.2020.102167;