|
|
|
|
|
Damir Karabaic, Marko Kr?ulja, Sven Maricic and Lovro Liveric
The most commonly used subsea pipeline installation method is the S-Lay method. A very important and complex task in an S-Lay installation engineering analysis is to find the optimal pipelay vessel installation configuration for every distinctive pipelin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yacong Wu, Jun Huang, Boqian Ji and Lei Song
Most existing studies on aerodynamic shape optimization have not considered longitudinal trim under control surface deflection, typically achieving self-trim through a constraint of zero pitching moment or adjusting the optimized configuration for longit...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yucheng Yang, Guohua Xu, Yongjie Shi and Zhiyuan Hu
This study develops a hybrid solver with reversed overset assembly technology (ROAT), a viscous vortex particle method (VVPM), and a CFD program based on the URNS method, in order to study the aerodynamic and acoustic characteristics of coaxial rigid rot...
ver más
|
|
|
|
|
|
|
|
|
|
|
Muhammad Sulman, Simone Mancini and Rasul Niazmand Bilandi
Incorporating steps into a hull reduces the wetted surface, promoting improved hydrodynamic lift and reduced resistance at high speeds, provided that the step is designed appropriately. Traditional hydrodynamics studies rely on scaled model testing in to...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yu Wang, Honghua Rao, Zhengyuan Liu, Kaihua Liu, Bo Zhou and Guiyong Zhang
The Volume of Fluid (VOF) method is used in two-phase fluid flow problems of ship hydrodynamic calculations, to capture the motion and distribution of the gas?liquid free surface. To ensure solution stability and accuracy, numerical simulations typically...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yu-Been Lee and Jae-Sang Park
This present study investigates the effect of blade tip configurations, such as the sweepback angle and anhedral angle, on the performance and hub vibratory loads for the lift-offset coaxial rotor of a 30,000-pound-class high-speed long-range utility hel...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kai Wang, Zhonghua Han, Keshi Zhang and Wenping Song
Most existing aerodynamic shape optimization (ASO) studies do not take the balanced pitching moment into account and thus the optimized configuration has to be trimmed to ensure zero pitching moment, which causes additional drag and reduces the benefit o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lin Zhang, Junli Yang, Tiecheng Duan, Jie Wang, Xiuyi Li and Kunyuan Zhang
A new idea of nosebleed air jets with strong coupled internal and external flow is put forward using the lateral jet control principle to improve the maneuverability and fast reaction capabilities of hypersonic vehicles. The hypersonic vehicle?s nose sta...
ver más
|
|
|
|
|
|
|
|
|
|
|
Florin Pacuraru, Andreea Mandru and Adham Bekhit
The scope of the present study is to investigate the effects of various geometrical hull features, such as tunnels, spray rails and whiskers on the hydrodynamic performance of a high-speed planing hull. The criteria being tested to emphasize the boat per...
ver más
|
|
|
|
|
|
|
|
|
|
|
Pan Zhou, Renliang Chen, Ye Yuan and Cheng Chi
The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics. A comprehensive method with the fixed-wake model was developed for multiple aerodynamic inter...
ver más
|
|
|
|
|
|