Results 1 to 10 of about 218,919 (202)

Hydro-Dynamic Model and Low-Speed Stability Analysis of Hydraulic Transformer

IEEE Access, 2021
Hydraulic transformer is a significant component to develop the future energy saving hydraulic systems; however, the speed stability is one of the problems in such a machine because the rotor is unconstrained and the rotary inertia of the rotor is small.
Qianqian Bao, Junjie Zhou, Chongbo Jing, Tianrui Li, Miaomiao Wang   +4 more
doaj   +1 more source

Flow Stability of Nanofluid Thin Films on Non-Uniformly Heated Porous Slopes

Nanomaterials
Thin liquid film flows of nanofluids over porous surfaces are central to applications ranging from microfluidic thermal management to precision coating technologies.
Jiawei Li, Xia Li, Liqing Yue, Xinshan Li, Zhaodong Ding   +4 more
doaj   +1 more source

Experimental study on the applicability of Westergaard’s formula for calculating earthquake-induced hydrodynamic pressure in small lake

Journal of Modern Transportation, 2017
Moraine-dammed lake outbursts usually threaten highways, railways, and key facilities in alpine regions. The varying amplitudes and distribution of hydrodynamic pressures significantly affect the stability of the dam.
Yiliang Zhou, Lingkan Yao, Hongzhou Ai, Baoliang Wang   +3 more
doaj   +1 more source

Modal and nonmodal stability analysis of electrohydrodynamic flow with and without cross-flow [PDF]

, 2015
We report the results of a complete modal and nonmodal linear stability analysis of the electrohydrodynamic flow (EHD) for the problem of electroconvection in the strong injection region.
Atten, Atten, Atten, Boyd, Fulvio Martinelli, Félici, Jian Wu, Maurizio Quadrio, Melcher, Mengqi Zhang, Peter J. Schmid, Schmid   +11 more
core   +2 more sources

Theoretical Analysis and Optimum Design of High Speed Air Film Thrust Bearings

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
Hydrodynamic air film thrust bearings are widely used for very high speed, lightly loaded rotating machinery such as gas expander, compressor, gyroscope and business machines, etc. In the design of hydrodynamic air film thrust bearings, it is of cardinal
Hiromu HASHIMOTO, Masayuki OCHIAI, Tadashi NANBA   +2 more
doaj   +1 more source

Instability waves in a subsonic round jet detected using a near-field phased microphone array [PDF]

, 2006
We propose a diagnostic technique to detect instability waves in a subsonic round jet using a phased microphone array. The detection algorithm is analogous to the beam-forming technique, which is typically used with a far-field microphone array to ...
Colonius, Tim, Suzuki, Takao
core   +2 more sources

Discussion on the Non-Linear Stability of Short Hydrodynamic Bearings by Applying Rabinowitsch Fluid Model

Lubricants
Using the Rabinowitsch fluid model, the effects of dilatant fluids (a non-Newtonian factor less than 0) and pseudo-plastic fluids (a non-Newtonian factor greater than 0) on the non-linear stability of hydrodynamic journal bearings is discussed.
Huaiqing Lu, Chunyan Cheng, Zhuxin Tian
doaj   +1 more source

On-Bottom Stability Analysis of Subsea Pipelines Based on DNVGL RP F109

Kapal, 2022
Subsea pipeline must be design as stable as possible to prevent failure, considering the external forces from current, wave and soil conditions. Based on these problems, the on-bottom stability analysis needs to be considered in the design of the subsea ...
Asfarur Ridlwan, Moehamad Syarif Hidayatullah, Elsa Rizkiya Kencana   +2 more
doaj   +1 more source

Hydrodynamic Optimization and Motion Stability Enhancement of Underwater Glider Combining CFD and MOPSO

Journal of Marine Science and Engineering
This study investigated the motion stability of underwater gliders and optimized their shape to enhance hydrodynamic performance. Given the critical role of stability in underwater operations, a multi-objective optimization framework was developed ...
Tian Zhang, Jiaming Wu, Xianyuan Yang, Xiaodong Chen   +3 more
doaj   +1 more source

Stability Assessment of a Catamaran Using Sea Trials

Journal of Marine Science and Engineering
Despite the continued rise in popularity of powered catamarans for recreational and commercial applications, there is limited published research on the factors that improve or reduce a powered catamaran’s hydrodynamic stability.
Nigel Matthews, Keith F. Joiner, Warren F. Smith   +2 more
doaj   +1 more source