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Minimizing Dispersion in FDTD Method...

Sun, Chen.

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Minimizing Dispersion in FDTD Methods with CFL Limit Extension.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Minimizing Dispersion in FDTD Methods with CFL Limit Extension./
作者:	Sun, Chen.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	89 p.
附註:	Source: Masters Abstracts International, Volume: 56-05.
Contained By:	Masters Abstracts International56-05(E).
標題:	Electromagnetics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10261786
ISBN:	9780355099966

Minimizing Dispersion in FDTD Methods with CFL Limit Extension.
Sun, Chen.

Minimizing Dispersion in FDTD Methods with CFL Limit Extension. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 89 p.

Source: Masters Abstracts International, Volume: 56-05.

Thesis (M.A.S.)--University of Toronto (Canada), 2017.

The CFL extension in FDTD methods is receiving considerable attention in order to reduce the computational effort and save the simulation time. One of the major issues in the CFL extension methods is the increased dispersion. We formulate a decomposition of FDTD equations to study the behaviour of the dispersion. A compensation scheme to reduce the dispersion in CFL extension is constructed and proposed. We further study the CFL extension in a FDTD subgridding case, where we improve the accuracy by acting only on the FDTD equations of the fine grid. Numerical results confirm the efficiency of the proposed method for minimising dispersion.

ISBN: 9780355099966Subjects--Topical Terms:

3173223
Electromagnetics.

Minimizing Dispersion in FDTD Methods with CFL Limit Extension.
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520 $a The CFL extension in FDTD methods is receiving considerable attention in order to reduce the computational effort and save the simulation time. One of the major issues in the CFL extension methods is the increased dispersion. We formulate a decomposition of FDTD equations to study the behaviour of the dispersion. A compensation scheme to reduce the dispersion in CFL extension is constructed and proposed. We further study the CFL extension in a FDTD subgridding case, where we improve the accuracy by acting only on the FDTD equations of the fine grid. Numerical results confirm the efficiency of the proposed method for minimising dispersion.
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