Numerical simulation of flow-induced vibration of a circular cylinder close to a free surface at low Reynolds number

Autor: Xiang Qi, Shaoshi Dai, Chengjiao Ren, Qianqian Dong, Chengwang Xiong

Publikováno v: Physics of Fluids. 35

The flow-induced vibration of a two-degree-of-freedom cylinder near a free surface at low Reynolds number (Re = 200) is numerically investigated using the lattice Boltzmann method and a free-surface model. The effects of the Froude number and submerg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3537b957f8146464ab6f40df3a440d1d
https://doi.org/10.1063/5.0132674

A method based on LS-SVM to estimate time-domain Green function

Autor: Jianwei Wang, Liping Sun, Yuqing Wang, Shaoshi Dai

Publikováno v: Journal of Marine Science and Technology. 26:973-985

How to calculate the 3D time-domain Green function and its gradients accurately and efficiently is the key to solving the hydrodynamic problem of ships. In this paper, the least square support vector machine (LS-SVM) theory was proposed for the first

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1e4fecc841c876700c38760f8a3a47c
https://doi.org/10.1007/s00773-020-00767-w

Extended wall-adapting local eddy-viscosity model for the large-eddy simulations of multiscale flows

Autor: Shaoshi Dai, Dan Tang, Bassam A. Younis

Publikováno v: Physics of Fluids. 34:055117

We report on progress made in improving the performance of the well-established wall-adapting local eddy-viscosity model in an important class of multiscale flows, namely, that of unsteady, massively separated flows at high Reynolds number. While thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58c79d9fc25c356429358cb0422f3837
https://doi.org/10.1063/5.0088656

Prediction of vortex shedding suppression from circular cylinders at high Reynolds number using base splitter plates

Autor: Chunyu Guo, Bassam A. Younis, Shaoshi Dai, Hongyang Zhang

Publikováno v: Dai, S; Younis, BA; Zhang, H; & Guo, C. (2018). Prediction of vortex shedding suppression from circular cylinders at high Reynolds number using base splitter plates. Journal of Wind Engineering and Industrial Aerodynamics, 182, 115-127. doi: 10.1016/j.jweia.2018.09.006. UC Office of the President: Research Grants Program Office (RGPO). Retrieved from: http://www.escholarship.org/uc/item/9w9473m0

© 2018 Elsevier Ltd Computations were performed to determine the optimal conditions for the suppression of vortex shedding from circular cylinders at high Reynolds number by means of splitter plates. Previous studies of this mechanism for vortex-she

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41674419936aef683a5dc2b499e5ab1f
http://www.escholarship.org/uc/item/9w9473m0

Large-Eddy Simulations of cavitation in a square surface cavity

Autor: Liping Sun, Bassam A. Younis, Shaoshi Dai

Publikováno v: Applied Mathematical Modelling, vol 38, iss 23
Dai, S; Younis, BA; & Sun, L. (2014). Large-Eddy Simulations of cavitation in a square surface cavity. Applied Mathematical Modelling, 38(23), 5665-5683. doi: 10.1016/j.apm.2014.04.059. UC Davis: Retrieved from: http://www.escholarship.org/uc/item/5vp3q3zm
Dai, S; Younis, BA; & Sun, L. (2014). Large-Eddy Simulations of cavitation in a square surface cavity. Applied Mathematical Modelling, 38(23), 5665-5683. doi: 10.1016/j.apm.2014.04.059. UC Office of the President: Research Grants Program Office (RGPO). Retrieved from: http://www.escholarship.org/uc/item/1cr1n403

We report on the development and application of a multiphase approach to the prediction of cavitation induced by high-speed flow over and within a square surface cavity. The approach entails employing a full cavitation model in conjunction with Large

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c69fa42e63dc3963a3d3f179f6f484a8
https://doi.org/10.1016/j.apm.2014.04.059