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Register a new userNumerical Simulation of 2D Numerical Wave Tank by the Resolution of Navier-Stokes Equations using Adaptive Selective Mesh Refinement Method
المحاكاة الرقمية لحوض اختبار النماذج عن طريق حل معادلات نافييه ستوكس باستخدام طريقة تنعيم شبكي تلاؤمي انتقائي
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Added by
Tishreen University ورقة بحثية
Publication date
2018
fields
Marine Engineering
and research's language is
العربية
Created by
Shamra Editor
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يقدم هذا البحث طريقة رقمية تعتمد على محاكاة حوض ثنائي البعد، لجريان ثنائي البعد صفائحي و غير مستقر لزج و غير قابل للانضغاط. يتم حل معادلات نافييه – ستوكس و معادلة الاستمرار في مجال المائع بتقريبها جبرياً باستخدام طريقة الفروق المتناهية. أما حقل الضغط فيتم الحصول عليه من خلال حل معادلة بواسون و التي تتضمن حقل سرعة تخيلية، حيث تحل معادلة بواسون بطريقة الحجوم المتناهية. يتم استخدام طريقة جديدة هي التنعيم الانتقائي التلاؤمي للشبكة "ASMR" للحصول على سرعة في الحل و دقة في النتائج.
This paper deals with a numerical method based on the simulation of a 2D tank, for unsteady and laminar two - dimensional incompressible viscous flow. Navier-Stokes and Continuity equations are solved in a fluid domain. These equations are discretized by Finite Differences Method. The pressure is obtained by solving a Poisson equation dealing with a fictitious velocity field. The Poisson equation is solved by a Finite Volume Method. The grid is refined by a new method “Adaptive Selective Mesh Refinement” called “ASMR”.
References used
ANANTHAKRISHNAN, "Nonlinear diffraction of waves over a submerged body in a real fluid". Proc. 8th, Int. Offshore and Polar Ing. Conf., Montreal, 1998, pp288-293
ISSA, H. Y. "Numerical Analyses". Master Lectures, Department of Marine Engineering, Tishreen University, Syria, 2012, pp 63
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