|
|
|
|
|
Changkun Yu, Zhigang Wu and Chao Yang
Slender vehicles often encounter significant aeroservoelastic challenges due to their low elastic mode frequencies and wide servo control system bandwidths. Traditional analysis methods have limitations, including low modeling accuracy for real vehicles ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Banghua Zhao, Sujun Dong, Chen Ding and Zhiliang Cui
The present study proposes a novel optimization strategy (NOS) for quasi-steady algorithms to optimize the initial error in the fast calculation of conjugate heat transfer (CHT) simulations. In this approach, the change in Nusselt number at the fluid?sol...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ziyang Hao, Jingchao Xie, Xiaojing Zhang and Jiaping Liu
This study provides a reference for estimating the building envelope thermal performance at the initial stage of design for nearly zero-energy buildings in different climate zones. A simplified model of heat load prediction, which combines the quasi-stea...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yilin Dou, Kelei Wang, Zhou Zhou, Peter R. Thomas, Zhuang Shao and Wanshan Du
In recent years, the air-drop launch technology of near-space UAVs has attracted much attention. Between downfall from the carrier and the flight control system?s initiation, the UAV presents free-fall movement. This free-fall process is very important f...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lixin Wang, Rong Zhao, Ke Xu, Yi Zhang and Ting Yue
The stall aerodynamic model based on Kirchhoff?s theory of flow separation is widely used in the identification and modeling of stall aerodynamic parameters. However, it has two defects. First, its model structure is significantly different from the pre-...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aziz Amoozegar and Joshua L. Heitman
The most common method for in situ measurement of saturated hydraulic conductivity (Ksat) of the vadose zone is the constant head well permeameter method. Our general objective is to provide an empirical method for determining volume of water required fo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiancheng Gu, Linghua Dong, Tong Li and Weidong Yang
An active rotor with trailing-edge flaps (TEFs) is an effective active vibration control method for helicopters. Blade flapping dynamic characteristics have a significant effect on the active vibration control performance of an active rotor. In this stud...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhuopu Wang, Wenchao Zhang and Yuanzhe Liu
Solid rocket motors are prone to combustion instabilities, which may lead to various problems for the rockets, from unexpected oscillations, precision decreasing, to explosion. The unsteady combustion dynamics of the propellants play a crucial role in mo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xinyu Lang, Bifeng Song, Wenqing Yang, Xiaojun Yang and Dong Xue
The wing planform and flapping kinematics are critical for the hovering flight of flapping wing micro air vehicles (FWMAVs). The degree of influence of wing geometry and kinematic parameters on aerodynamic performance still lacks in-depth analysis. In th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ruixuan He, Xinjing Wang, Jian Li, Xiaodong Liu and Baowei Song
Recently, inspired by the flippers of humpback whales, researchers have been widely studying leading-edge tubercles for use as passive flow control devices. In this research, we numerically investigated the effects of leading-edge tubercles on a three-di...
ver más
|
|
|
|
|
|