Results 11 to 20 of about 161,763 (281)

Enhancement and Application of Overset Grid Assembly [PDF]

open access: yesChinese Journal of Aeronautics, 2010
AbstractIn this article, the overset grid assembly method is improved to efficiently solve several critical problems that occur when applying overset grids to the complicated geometries and moving body. First, instead of using the two-step searching (i.e.
Jingjing, Fan, Chao, Yan
openaire   +2 more sources

Interpolation Techniques for Overset Grids [PDF]

open access: yes, 2003
The use of finite difference schemes in computational aeroacoustics requires the use of structured grids incomputational space. Complex geometries in the physical space can be modeled using multiple overlapping grids that are transformed into ...
Sherman, Paul S., Edgar, Nathan B.
core   +3 more sources

Moving computational multi-domain method for modelling the flow interaction of multiple moving objects

open access: yesAdvances in Aerodynamics, 2022
This study proposes a method for modelling the flow interaction of multiple moving objects where the flow field variables are communicated between multiple separate moving computational domains.
Momoha Nishimura   +4 more
doaj   +1 more source

On automating domain connectivity for overset grids [PDF]

open access: yes33rd Aerospace Sciences Meeting and Exhibit, 1995
An alternative method for domain connectivity among systems of overset grids is presented. Reference uniform Cartesian systems of points are used to achieve highly efficient domain connectivity, and form the basis for a future fully automated system.
Ing-Tsau Chiu, Robert Meakin
openaire   +1 more source

On the use of reduced grids in conjunction with the Equator-Pole grid system

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2020
This is a continuation of a previous paper by Starius, where for the solution of the shallow water equations on the sphere, we consider Equator-Pole grid systems consisting of one latitude-longitude grid covering an annular band around the equator, and ...
Göran Starius
doaj   +1 more source

A Modified Fifth-Order WENO-HLLC Riemann Solver for Transonic Viscous Flows around Helicopter Rotor in Hover

open access: yesShock and Vibration, 2022
This paper presents a modified fifth-order WENO-HLLC Riemann solver for the transonic compressible viscous flows around the helicopter rotor in hover. The HLLC approximate Riemann solver is proposed to discrete the convection term involving grid velocity
Li Xu, Fengfeng Zhao, Jingjing Cai
doaj   +1 more source

Development of Efficient and Accurate Parallel Computation Algorithm Using Moving Overset Grids on Background Multi-Domains for Complex Two-Phase Flows

open access: yesApplied Sciences, 2018
The goal of this study involves developing an efficient and accurate parallel computation method for two-phase flow problems including complex moving foreign bodies.
Minho Ha   +5 more
doaj   +1 more source

Breast Tumour Identification based on Chimera Overset Grid with Spline Interpolation in Forward-Backward Time-Stepping

open access: yesASM Science Journal, 2021
Active microwave imaging (MI) technique has been recently recommended as a new technology for early detection of malignant breast tumours. Finite-difference Time-domain (FDTD) method is an effective numerical tool for computational electrodynamics ...
Bong Siaw Wee   +2 more
doaj   +1 more source

Transition prediction for high-lift flows using a crossflow-extended RANS transition model with overset grid [PDF]

open access: yesAIP Advances
High-lift flow simulations remain challenging for Reynolds-averaged Navier–Stokes methods, largely due to the coexistence of laminar separation bubbles, boundary-layer transition, wake/shear-layer interactions, and three-dimensional effects. In this work,
Hongze Sun, Yiming Du
doaj   +1 more source

Transition Flight Control and Simulation of a Novel Tail-Sitter UAV With Varying Fuselage Shape

open access: yesIEEE Access, 2021
This article studies the model, control and simulation on transition flight of a novel tail-sitter with vertical takeoff and landing capability. The proposed tail-sitter adopts an innovative varying fuselage shape design to break the technical bottleneck
Xinglu Xia   +4 more
doaj   +1 more source

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