SOFIA Cavity Simulations Using Overset Grids

2002 ◽  
Author(s):  
Todd Henderson ◽  
Charlie Hamburger
Keyword(s):  
Overset Grids

Surface grid generation methods for overset grids

1995 ◽  
Vol 24 (5) ◽  
pp. 509-522 ◽  
Author(s):  
William M. Chan ◽  
Pieter G. Buning
Keyword(s):  
Grid Generation ◽  
Overset Grids

Flow Simulations by Enhanced Implicit-Hole-Cutting Method on Overset Grids

2014 ◽  
Vol 51 (5) ◽  
pp. 1401-1409 ◽  
Author(s):  
Jia Xu ◽  
Jinsheng Cai ◽  
Qiuhong Liu ◽  
Kun Qu
Keyword(s):  
Cutting Method ◽  
Overset Grids ◽  
Flow Simulations

scholarly journals On automating domain connectivity for overset grids

1995 ◽  
Author(s):  
Ing-Tsau Chiu ◽  
Robert Meakin
Keyword(s):  
Overset Grids

A MULTI-TIME-STEP STRATEGY BASED ON AN OPTIMIZED TIME INTERPOLATION SCHEME FOR OVERSET GRIDS

2010 ◽  
Vol 18 (02) ◽  
pp. 131-148 ◽  
Author(s):  
DAKAI LIN ◽  
MIN JIANG ◽  
XIAODONG LI
Keyword(s):  
Numerical Stability ◽  
Grid Generation ◽  
Interpolation Scheme ◽  
Time Step ◽  
Overset Grids ◽  
Numerical Examples ◽  
Typical Time ◽  
Time Marching

A multi-time-step strategy for overset grids is proposed based on an optimized time interpolation scheme. Time interpolation is adopted in the vicinity of the interface between adjacent blocks, which are marching in time with different time steps satisfying the local numerical stability. There is no strict constraint on the ratio of mesh sizes between neighboring blocks, and it can alleviate the burden of the grid generation for multi-time-step marching methods. The optimized time interpolation scheme can be simply combined with the existing typical time marching schemes to achieve multi-time-step marching for overset grids. Some numerical examples are presented to demonstrate the feasibility and efficiency of the proposed strategy.

COMBINATION OF MESH DEFORMATION AND OVERSET GRID FOR SIMULATING UNSTEADY FLOW OF INSECT FLIGHT

2009 ◽  
Vol 23 (03) ◽  
pp. 525-528 ◽  
Author(s):  
TIANHANG XIAO ◽  
HAISONG ANG
Keyword(s):  
Insect Flight ◽  
Unsteady Flows ◽  
Flapping Wings ◽  
Mesh Deformation ◽  
Time Step ◽  
Overset Grids ◽  
Boundary Definition ◽  
Graph Mapping ◽  
Background Grid ◽  
Grid Cluster

As numerical simulation of unsteady flows due to moving boundaries such as flexible flapping-wings is difficult by conventional approaches, an effective strategy which combines mesh deformation based on Delaunay graph mapping and unstructured overset grids is proposed in this paper. A Delaunay graph is generated for each body-fitted grid cluster which overlaps or is embedded within an off-body background grid cluster. At each time step, the graph moves according to the wing's motion and deformation, and the grids move to new positions according to a one-to-one mapping between the graph and the grid. Then, intergrid-boundary definition is implemented automatically for computation.

scholarly journals The CFD Investigation of Two Non-Aligned Turbines Using Actuator Disk Model and Overset Grids

2014 ◽  
Vol 524 ◽  
pp. 012144
Author(s):  
I O Sert ◽  
S C Cakmakcioglu ◽  
O Tugluk ◽  
N Sezer-Uzol
Keyword(s):  
Disk Model ◽  
Overset Grids ◽  
Actuator Disk

scholarly journals Dynamic manoeuvres of KCS in waves using URANS computations with overset grids

2019 ◽  
Vol 1357 ◽  
pp. 012015
Author(s):  
Yuting Jin ◽  
Allan R Magee ◽  
Lucas J Yiew ◽  
Yingying Zheng
Keyword(s):  
Overset Grids
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