TY  - EJOU
AU  - Zhao, Y.  
AU  - Yeo, K.S.  
AU  - Yu, P.  
AU  - Ang, S.J.  

TI  - Simulation of C-start and S-start of fishes by an ALE-GFD method and a curvature-wave backbone model
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2011
VL  - 16
IS  - 2
SN  - 1933-2815

AB  - This paper presents the application of an Arbitrary Lagrangian Eulerian (ALE) and Singular Value Decomposition (SVD) based Generalized Finite Difference (GFD) method to simulate the C- and S-starts of a carangiform-type fish. The numerical model incorporate fluid-structure interaction (FSI) and computation is carried out on a hybrid grid comprising meshfree nodes around the undulating/deforming swimming fish and Cartesian nodes in the background. The meshfree nodes convect with the deformation and motion of the swimmer. A curvature-wave model of the backbone is used to generate the C- and S-start actions of the fish from the experimental data of Spierts and Leeuwen (1999). The curvature model provides a power tool to describe complex deformations of the fish backbone. The present study is probably the first to apply a curvature approach to reproduce the elegant and realistic manoeuvring kinematic actions of a carangiform-type fish.
KW  - 

DO  - 10.3970/icces.2011.016.059