Engineering Computations: Volume 33 Issue 1

Performance comparisons of bonding box-based contact detection algorithms and a new improvement technique based on parallelization

Mahmoud Yazdani, Hamidreza Paseh, Mostafa Sharifzadeh

– The purpose of this paper is to find a convenient contact detection algorithm in order to apply in distinct element simulation.

Overlapped-coupling between spherical discrete elements and micropolar finite elements in one dimension using a bridging-scale decomposition for statics

Richard Regueiro, Zheng Duan, Beichuan Yan

– The purpose of this paper is to develop a concurrent multiscale computational method for granular materials in the quasi-static loading regime.

Criterion for the limit cycle free state-space digital filters with external disturbances and quantization/overflow nonlinearities

Diksha -, Priyanka Kokil, Haranath Kar

– The purpose of this paper is to develop a new criterion for the exponential stability and

A class of generic factored and multi-level recursive approximate inverse techniques for solving general sparse systems

Christos K. Filelis-Papadopoulos, George A. Gravvanis

– The purpose of this paper is to propose novel factored approximate sparse inverse schemes and multi-level methods for the solution of large sparse linear systems.

A new arc-length control method based on the rates of the internal and the dissipated energy

Stefan May, Julien Vignollet, René de Borst

– The purpose of this paper is to introduce a new arc-length control method for physically non-linear problems based on the rates of the internal and the dissipated energy.

Large amplitude bending behaviour of laminated composite curved panels

Trupti Ranjan Mahapatra, Vishesh Ranjan Kar, Subrata Kumar Panda

The purpose of this paper is to analyse the nonlinear flexural behaviour of laminated curved panel under uniformly distributed load. The study has been extended to analyse…

The numerical simulation of draft tube cavitation in Francis turbine at off-design conditions

Jing Yang, Lingjiu Zhou, Zhengwei Wang

The vortex ropes in draft tube of Francis turbine always cause fluctuation and vibration, which consequently threaten the safety and stability of hydro turbines. The purpose of…

Symplectic analysis for the effects of material distribution and relative density on dynamic properties of sandwich tubes with honeycomb cores

Kai Zhang, Zichen Deng, Junmiao Meng, Xiaojian Xu

The purpose of this paper is to provide an efficient numerical solution for dynamic properties of sandwich tubes with honeycomb cores and investigate the effects of material…

Influence of impeller-tongue interaction on the unsteady cavitation behavior in a centrifugal pump

Long Meng, Min He, Lingjiu Zhou, Jing Yang, Zhengwei Wang, Bryan Karney

– The purpose of this paper is to analyze the cavitation dynamics in the blade channel of a centrifugal pump with a particular focus on the direct influence of the pump’s volute.

Strategies for computationally feasible multi-objective simulation-driven design of compact RF/microwave components

Slawomir Koziel, Adrian Bekasiewicz

Strategies for accelerated multi-objective optimization of compact microwave and RF structures are investigated, including the possibility of exploiting surrogate modeling…

A curvature correction turbulent model for computations of cloud cavitating flows

Yu Zhao, Guoyu Wang, Biao Huang

The purpose of this paper is to assess the predictive capability of the streamline curvature correction model (CCM) and investigate the unsteady vortex behavior of the cloud…

Real-time micro-modelling of a million pedestrians

R Lohner, Muhammad Baqui, Eberhard Haug, Britto Muhamad

The purpose of this paper is to develop a first-principles model for the simulation of pedestrian flows and crowd dynamics capable of computing the movement of a million…

Adaptability of turbulence models to predict the performance and blade surface pressure prediction of a Francis turbine

WenRuo Zhu, ZhongXin Gao, YongJun Tang, JianGuang Zhang, Li Lu

The purpose of this paper is to analyze the ability of turbulence models to model the flow field in the runner of a Francis turbine. Although the complex flow in the turbine can…

An efficient finite element formulation for nonlinear analysis of clustered tensegrity

Liang Zhang, Qiang Gao, Yin Liu, Hongwu Zhang

The purpose of this paper is to propose an efficient finite element formulation for nonlinear analysis of clustered tensegrity that consists of classical cables, clustered cables…

A weak form quadrature element method for nonlinear free vibrations of Timoshenko beams

Minmao Liao, Hongzhi Zhong

The purpose of this paper is to highlight the implementation of a recently developed weak form quadrature element method for nonlinear free vibrations of Timoshenko beams…

Co-seismic and post-seismic behavior of an existed shallow foundation and super structure system on a natural sand/silt layered ground

Xiaohua Bao, Guanlin Ye, Bin Ye, Yanbin Fu, Dong Su

The purpose of this paper is to evaluate the co-seismic and post-seismic behaviors of an existed soil-foundation system in an actual alternately layered sand/silt ground including…

Letter to the editor

Murat Uzam