A Study on Effects of Blade Pitch on the Hydrodynamic Performances of a Propeller by Using CFD

Cong, Nguyen Chi; Loi, Luong Ngoc; He, Ngo Van

doi:10.17265/2159-5879/2018.01.005

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Investigating the hydrodynamic behaviors of the CPPs is vital to reveal the data necessary for propeller design and operation. Nguyen et al [8] attempted to reveal the CPP general hydrodynamic structure and the effects of pitch rates on the thrust.…”

Section: Introductionmentioning

confidence: 99%

The numerical investigation of spindle torque for a controllable pitch propeller in feathering maneuver

Yurtseven

Aktay

2023

brod

View full text Add to dashboard Cite

Present paper studies the variation of the blade spindle torque in a controllable pitch propeller (CPP) during the feathering maneuver, which is one of the rare but most challenging propeller maneuvers in CPP operation. The knowledge of the spindle torque under different operating conditions is one of the key features for the CPP controller unit design. The aim of this study is determining the forces needed to be governed to control the blade motion of a CPP converted from a fixed pitch propeller and the scale effect on these forces. So as to obtain a realistic numerical setup, the time-dependent superposed motion of the main rotation of the propeller and the rotation of each blade around its axis is modeled using a hybrid overset/sliding mesh technique. The spindle torque values were calculated during the dynamical variation of the blade pitch in feathering maneuver, and a novel expression is recommended to non-dimensionalize the predicted spindle torque. The result revealed that the required torque values to rotate each blade during the propeller maneuver is rising up to a critical pitch angle. Further increment of the pitch angle results in lower spindle torque values. Furthermore, this critical pitch angle is inversely proportional to the propeller loading.

show abstract

Section: Introductionmentioning

confidence: 99%

The numerical investigation of spindle torque for a controllable pitch propeller in feathering maneuver

Yurtseven

Aktay

2023

brod

View full text Add to dashboard Cite

show abstract

CFD results on hydrodynamic performances of a marine propeller

Loi

Cong

2019

JMST

View full text Add to dashboard Cite

In this work, the commercial Computational Fluid Dynamics (CFD), ANSYS-Fluent V.14.5 has been used to illustrate the effects of rudder and blade pitch on hydrodynamic performances of a propeller. At first, the characteristic curves of a container ship propeller are computed. Then, effects of rudder on hydrodynamic performances of the propeller in the both cases of the propeller with and without rudder have been investigated. The relationships between the blade pitch angle and the hydrodynamic performances of the selected referent propeller in this work having designed conditions as diameter of 3.65 m; speed of 200 rpm; average pitch of 2.459 m and the boss ratio of 0.1730. Using CFD, the characteristic curves of the marine propeller, pressure distribution, velocity distribution around propeller and the efficiency of the propeller have been shown. From the obtained results, the effects of rudder and blade pitch angle on hydrodynamic performances of the propeller have been evaluated.

show abstract

Fpp'den Cpp'ye Dönüştürülen Bi̇r Pervaneni̇n Hi̇drodi̇nami̇k Performansinin Sayisal İncelenmesi̇

YURTSEVEN

2023

Journal of Naval Sciences and Engineering

View full text Add to dashboard Cite

A test propeller designed as a fixed pitch (FPP) propeller has been made to operate on CPP principles with geometric modifications to the blade and hub geometry. The hydrodynamic performance of this modified propeller compared to its parent FPP propeller is investigated. The study was solved in a computer environment using computational fluid dynamics (CFD) methods. The flow around the propeller is modeled as a three-dimensional, time-dependent, incompressible and turbulent flow. The Realizable k-ε turbulence model is commonly chosen to represent and characterize turbulence in fluid flow. It is seen that the optimum efficiency point in propeller design conditions is J=0.8, the negative pitch angle changes of the blades at the advance coefficients below this point, and the positive pitch angle changes at the advance coefficients above this point, the propeller efficiency values exceed the FPP version propeller efficiency values.

show abstract

A Study on Effects of Blade Pitch on the Hydrodynamic Performances of a Propeller by Using CFD

Cited by 3 publications

References 0 publications

The numerical investigation of spindle torque for a controllable pitch propeller in feathering maneuver

The numerical investigation of spindle torque for a controllable pitch propeller in feathering maneuver

CFD results on hydrodynamic performances of a marine propeller

Fpp'den Cpp'ye Dönüştürülen Bi̇r Pervaneni̇n Hi̇drodi̇nami̇k Performansinin Sayisal İncelenmesi̇

Contact Info

Product

Resources

About