Numerical Investigation of Shock Bubble Interaction using Wavelet Adaptive Multi-Resolution Method

الموضوعات

علوم بحتة وطبيعية

الملخص

When a shock interacts with a bubble having a different density than the environment or medium, the interaction causes compression and deformation of the bubble and generation of a vortex pair. Later, secondary vortices appear causing enhanced mixing. The enhanced mixing induced by the shock bubble interactions is particularly of interest in supersonic combustion and detonation. The Wavelet Adaptive Multi-resolution Representation (WAMR) method is particularly suitable for challenging continuum physics problems like shock bubble interaction, which has strong multi-scale character. This method provides an efficient strategy to create a dynamically adaptive spatial grid and to obtain a verified solution. Since the wavelet amplitude provides a first-hand estimate of the local error at each point, the method is able to efficiently capture a wide spectrum of spatial scales by dynamically changing the adaptive grid. Highly resolved computations are done only in the regions where abrupt transition occurs.In this work a detailed investigation of Shock Bubble Interaction (SBI) is carried out using shocks having Mach numbers from 1.2 to 3 for helium, nitrogen and krypton bubbles. Simulations carried out using WAMR method were used to analyze the effects of Mach number and density contrast on the shape, location and velocity of the bubble as well as vorticity and pressure in the flow field.

روابط وملفات

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التعريف والنوع

رقم الوثيقة: 008eaaeb-3190-4d00-80d5-5b3cb7875208
رقم العقد: 0
نوع الوسائط: Crawler
نوع المحتوى: الرسائل العلمية
صيغة المصدر: رسائل ماجيستير
نوع الملف: pdf text
أسماء الملفات: 1699022_1.pdf

بيانات النشر

ألقاب المؤلفين: [{"name_ar":"راهول دوبيشوار","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"هونغ جي إم","title_ar":"اشراف","title_en":"Supervision"}]
اللغة: English

المصدر والدورية

اسم المصدر: Numerical Investigation of Shock Bubble Interaction using Wavelet Adaptive Multi-Resolution Method

المحتوى والصفحات

عدد الصفحات: 0
كلمات الباحثين: Adaptive mesh , Shock-Bubble Interactions , WAMR , Wavelet

إشراف وإعداد

الإشراف: هونغ جي إم
الإعداد: راهول دوبيشوار

الاقتباسات الببليوغرافية

APA

راهول دوبيشوار و هونغ جي إم. (2018). Numerical Investigation of Shock Bubble Interaction using Wavelet Adaptive Multi-Resolution Method. أطروحة(رسائل ماجيستير). جامعة الملك عبدالله للعلوم والتقنية. السعودية.

MLA

راهول دوبيشوار و هونغ جي إم. Numerical Investigation of Shock Bubble Interaction using Wavelet Adaptive Multi-Resolution Method. 2018. جامعة الملك عبدالله للعلوم والتقنية، رسائل ماجيستير.