計算流體力學在評估船舶水動力性能上之應用

CFD Predictions on Ship Hydrodynamic Performances

林正文(C.W.Lin)

《中國造船暨輪機工程學刊》 21卷1期 (2002/02) Pp. 1-9

https://doi.org/10.29982/JTSNAME.200202.0001

摘要

本文將應用於評估船舶流力特性的計算流力技術進行重點式的回顧，並對於描述船舶流力特性相關的數學方程式做一簡要的敘述與分類，藉由瞭解其分類原則而對運用不同數學方程式而產生的數值方法能有一初步的認識，尤其是所代表的重要物理意義及其應用上之限制；文中對馬力需求、波浪中之運動性能及操縱性能等三個領域所採用之数值方法的發展現況及實際應用的情形加以說明，並探討未來計算流體力學在船用水動力上的發展趨勢與研究重點。

並列摘要

In this paper, the CFD technology used in predicting ship hydrodynamics is reviewed in details. Fundamental mathematic formulations are described to understand the limitations of various CFD numerical prediction techniques. The computations of ship hydrodynamic performances can be carried out through different numerical methods. The importance is to evaluate those hydrodynamic performances with reasonable accuracy and computational effort. Three major hydrodynamic performances, ship powering, ship motion responses and ship maneuvering are investigated. The evolutions of various numerical prediction techniques are reviewed and the current status of their applications is described. The future development of CFD prediction technology in ship hydrodynamics is also discussed.