|
|
|
|
|
Seungnam Kim, Spyros A. Kinnas and Weikang Du
A low-order panel method is used to predict the performance of ducted propellers. A full wake alignment (FWA) scheme, originally developed to determine the location of the force-free trailing wake of open propellers, is improved and extended to determine...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seungnam Kim, Spyros A. Kinnas and Weikang Du
A low-order panel method is used to predict the performance of ducted propellers. A full wake alignment (FWA) scheme, originally developed to determine the location of the force-free trailing wake of open propellers, is improved and extended to determine...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seungnam Kim, Spyros A. Kinnas and Weikang Du
A low-order panel method is used to predict the performance of ducted propellers. A full wake alignment (FWA) scheme, originally developed to determine the location of the force-free trailing wake of open propellers, is improved and extended to determine...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sanchit Salunkhe, Oumnia El Fajri, Shanti Bhushan, David Thompson, Daphne O?Doherty, Tim O?Doherty and Allan Mason-Jones
This paper documents the predictive capability of rotating blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and Improved Delayed Detached Eddy Simulation (IDDES) computations for tidal stream turbine performance and intermediate wake chara...
ver más
|
|
|
|
|
|
|
|
|
|
|
Md. Asif Amin, Bruce Colbourne and Brian Veitch
The propeller jet from a ship has a significant component directed upwards towards the free surface of the water, which can be used for ice management. This paper describes a comprehensive laboratory experiment where the operational factors affecting a p...
ver más
|
|
|
|
|
|
|
|
|
|
|
Md. Asif Amin, Bruce Colbourne and Brian Veitch
The propeller jet from a ship has a significant component directed upwards towards the free surface of the water, which can be used for ice management. This paper describes a comprehensive laboratory experiment where the operational factors affecting a p...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zachary Robison and Andreas Gross
To better understand the wake effects at low Reynolds numbers, large-eddy simulations of a 50% reaction low-pressure turbine stage and a linear cascade with two different bar wake generators were carried out for a chord Reynolds number of 50,000. For the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Weijun Pan, Yanqiang Jiang, Junjie Zhou, Wei Ye and Yuqin Zhang
The effect of crosswinds on paired approach (PA) procedures for Closely Spaced Parallel Runways (CSPR) is investigated in this paper by fully utilizing the crosswind environment to implement a more efficient PA and increase runway capacity. An improved w...
ver más
|
|
|
|
|
|
|
|
|
|
|
Haotian Luo, Weijun Pan, Yidi Wang and Yuming Luo
Today, aviation has grown significantly in importance. However, the challenge of flight delays has become increasingly severe due to the need for safe separation between aircraft to mitigate wake turbulence effects. The primary emphasis of this investiga...
ver más
|
|
|
|
|
|
|
|
|
|
|
Igor Shugan and Yang-Yih Chen
The ship?s wake in the presence of a shear flow of constant vorticity at a finite water depth is investigated by expanding the Whitham-Lighthill kinematic theory. It has been established that the structure of a wave ship wake radically depends on Froude ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Angus Gray-Stephens, Tahsin Tezdogan and Sandy Day
This study investigates the level of accuracy with which Computational Fluid Dynamics (CFD) is capable of modelling the nearfield longitudinal wake profiles of a high-speed planing hull. It also looks to establish how various set-ups influence the accura...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pelle Bo Regener, Yasaman Mirsadraee and Poul Andersen
Propeller designers often need to base their design on the nominal model scale wake distribution because the effective full scale distribution is not available. The effects of such incomplete design data on cavitation performance are examined in this pap...
ver más
|
|
|
|
|
|
|
|
|
|
|
Thomas Sebastian and Matthew Lackner
The degrees-of-freedom associated with offshore floating wind turbines (OFWTs) result in a more dynamic flow field. The resulting aerodynamic loads may be significantly influenced by these motions via perturbations in the evolving wake. This is of great ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tengyuan Wang, Shuni Zhou, Chang Cai, Xinbao Wang, Zekun Wang, Yuning Zhang, Kezhong Shi, Xiaohui Zhong and Qingan Li
In modern large-scale wind farms, power loss caused by the wake effect is more than 30%, and active yaw control can greatly reduce the influence of the wake effect by deflecting the wind turbine?s wake. The yawed wind turbine?s wake characteristics are c...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sidaard Gunasekaran and Grant Ross
The use of flexible inverted piezo embedded Polyvinylidene Difluoride (PVDF) as a simultaneous energy harvester and as a wake sensor is explored. The oscillation amplitude (characterized by voltage output) and oscillation frequency of the piezo-embedded ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lei Xue, Jundong Wang, Liye Zhao, Zhiwen Wei, Mingqi Yu and Yu Xue
Wake effects commonly exist in offshore wind farms, which will cause a 10?20% reduction of whole power production as well as a 5?15% increase of fatigue loading on the wind turbine main structures. Obviously wake interaction between floating offshore win...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lingzhi Wang and Taoyong Su
An electrically controlled rotor (ECR) is a kind of swashplateless rotor that implements the primary control via the trailing-edge flap system instead of a swashplate and demonstrates great potential in vibration reduction and noise alleviation. In this ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Li Zou, Kun Wang, Yichen Jiang, Aimin Wang and Tiezhi Sun
Owing to the rapid development of the offshore wind power technology and increasing capacity of wind turbines, vertical-axis wind turbines (VAWTs) have experienced a great development. Nevertheless, the VAWT wake effect, which affects the power generatio...
ver más
|
|
|
|
|
|
|
|
|
|
|
Julian Schirra, William Bissonnette and Götz Bramesfeld
For staggered boxwings the predictions of induced drag that rely on common potential-flow methods can be of limited accuracy. For example, linear, freestream-fixed wake models cannot resolve effects related to wake deflection and roll-up, which can have ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Julian Schirra, William Bissonnette and Götz Bramesfeld
For staggered boxwings the predictions of induced drag that rely on common potential-flow methods can be of limited accuracy. For example, linear, freestream-fixed wake models cannot resolve effects related to wake deflection and roll-up, which can have ...
ver más
|
|
|
|
|
|