Investigating the effect of biofouling on propeller characteristics using CFD

Download

index.pdf

Date

2018-07-01

Author

Owen, David
Demirel, Yigit Kemal
Oğuz, Elif
Tezdogan, Tahsin
Incecik, Atilla

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

136
views

80
downloads

Increasing pressure is being placed on the marine industry to address ship emissions, regulations to govern the efficient operation of ships in the form of the Energy Efficiency Design Index (EEDI) and Energy Efficiency Operation Index (EEOI) have recently come into force. All aspects of ship design and operation that impact the energy efficiency of ships are subject to revaluation. This paper investigates the detrimental effects of biofouling on the performance of Potsdam Propeller Test Case (PPTC) propeller using Computational Fluid Dynamics (CFD). A previously-developed CFD approach for approximating the surface roughness due to biofouling has been applied in order to predict the effects on propeller characteristics. The roughness effects of a typical coating and different fouling conditions on the propeller performance were predicted for various advance coefficients. The effect proved to be drastic with the most severe fouling condition resulting in a 11.9% efficiency loss at J = 0.6 ranging to an alarming 30.3% loss at J = 1.2 compared to the smooth condition. The study acts as a proof of concept for the proposed CFD assessment method which can be used as a very practical approach to predicting the impact of realistic fouling conditions on propeller characteristics and energy efficiency.

Subject Keywords

Biofouling, CFD, Propeller, Open Water, Biofouling

URI

https://hdl.handle.net/11511/32971

Journal

OCEAN ENGINEERING

DOI

https://doi.org/10.1016/j.oceaneng.2018.01.087

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Investigating the reliability of ultrasound phased array method and conventional ultrasonic testing for detection of defects in austenitic stainless steels Akgün, Bahadır; Gür, Cemil Hakan; Department of Metallurgical and Materials Engineering (2015) In recent years Phased Array (PA) method has become an alternative to the conventional ultrasonic method for critical tests in aerospace, oil, gas and nuclear industries. There is a challenge for inspection of austenitic stainless steels due to high attenuation, skewing and scattering of sound beam. The aim of this thesis is to investigate and to compare the flaw detection abilities of conventional ultrasonic and PA systems using the probability of detection (PoD) approach for testing of austenitic stainles...
On the pathway of photoexcited electrons: probing photon-to-electron and photon-to-phonon conversions in silicon by ATR-IR KARABUDAK, Engin; Yüce, Emre; SCHLAUTMANN, Stefan; Hansen, Ole; Mul, Guido; Gardeniers, Han (J. G. E.) (2012-01-01) Photoexcitation and charge carrier thermalization inside semiconductor photocatalysts are two important steps in solar fuel production. Here, photoexcitation and charge carrier thermalization in a silicon wafer are for the first time probed by a novel, yet simple and user-friendly Attenuated Total Reflectance Infrared spectroscopy (ATR-IR) system.
Investigations on blade tip tilting for hawt rotor blades using CFD Elfarra, Monier A.; Sezer Uzol, Nilay; Akmandor, I. Sinan (2015-02-26) The main purpose of this paper is to study the aerodynamic effects of blade tip tilting on power production of horizontal-axis wind turbines by using Computational Fluid Dynamics (CFD). For validation and as a baseline rotor, the NREL Phase VI wind turbine rotor blade is used. The Reynolds-Averaged Navier-Stokes Equations are solved and different turbulence models including the Spalart-Allmaras, Standard k-ε, k-ε Yang-Shih and SST k-ω models are used and tested. The results are shown in terms of power gener...
A Numerical Simulation Study of Carbon-Dioxide Sequestration into a Depleted Oil Reservoir Pamukcu, Y. Z.; Gumrah, F. (Informa UK Limited, 2009-01-01) Utilization of CO2 for enhanced oil recovery and sequestration processes not only reduces greenhouse emissions but also awards economical benefits. Enhancing oil recovery in a sequestration is an optimization process that requires careful analysis. In CO2-enhanced oil recovery the main purpose is to maximize oil recovery with the minimum quantity of CO2 while a maximum amount of CO2 is aimed to store in a sequestration. Kartaltepe field having 32 degrees API gravity oil in a carbonate formation from southea...
Determination of the Spatial Distribution in Hydraulic Conductivity Using Genetic AlgorithmOptimization Aksoy, Ayşegül; Kıtanıdıs, Peter K (null; 2016-12-16) Heterogeneity in hydraulic conductivity (K) impacts the transport and fate of contaminants in subsurface as well as design and operation of managed aquifer recharge (MAR) systems. Recently, improvements in computational resources and availability of big data through electrical resistivity tomography (ERT) and remote sensing have provided opportunities to better characterize the subsurface. Yet, there is need to improve prediction and evaluation methods in order to obtain information from field measurements ...

Citation Formats

D. Owen, Y. K. Demirel, E. Oğuz, T. Tezdogan, and A. Incecik, “Investigating the effect of biofouling on propeller characteristics using CFD,” OCEAN ENGINEERING, pp. 505–516, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32971.