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Operators approaches in studying the problem on normal oscillations of system of m capillary viscous fluid

طرائق المؤثرات في دراسة الاهتزازات النظامية لمنظومة m سائل لزج شعري

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 Publication date 2015
  fields Mathematics
and research's language is العربية
 Created by Shamra Editor




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Our aim of this paper is studying the problem on normal oscillations of system of capillary viscous fluids in vessel. We prove results about the spectrum of the problem for rotating vessel and prove that the systems of root elements ( eigenelements and associated elements ) form an Abel-Lidsky basis. Also , we use some results from the theory of J-self adjoint operators in studying the spectrum of the problem for non-rotating vessel.


Artificial intelligence review:
Research summary
يهدف هذا البحث إلى دراسة الاهتزازات النظامية لمجموعة من السوائل اللزجة الشعرية داخل أنبوب. يتم التركيز على حالتين: حالة الأنبوب الدوار وحالة الأنبوب الثابت. تم استخدام نظرية المؤثرات الذاتية المترافقة لدراسة طيف المسألة في حالة الأنبوب الثابت، بينما تم إثبات أن العناصر الجذرية تشكل قاعدة آبل-ليدسكي في حالة الأنبوب الدوار. البحث يعتمد على نتائج سابقة ويستخدم طرائق مثل الإسقاط العمودي والنظرية الطيفية. النتائج تشير إلى أن طيف المسألة منقطع وأن العناصر الجذرية تشكل قاعدة آبل-ليدسكي، مما يفتح المجال لتطبيقات عملية في الفيزياء والهندسة.
Critical review
دراسة نقدية: البحث يقدم مساهمة مهمة في مجال دراسة الاهتزازات النظامية للسوائل اللزجة الشعرية، ولكنه يمكن أن يكون أكثر وضوحاً في شرح التطبيقات العملية لهذه النتائج. كما أن استخدام المصطلحات الرياضية المعقدة قد يجعل من الصعب على القراء غير المتخصصين فهم المحتوى بالكامل. كان من الممكن تقديم أمثلة تطبيقية أو رسوم بيانية لتوضيح النقاط الرئيسية بشكل أفضل. بالإضافة إلى ذلك، يمكن أن يكون هناك مزيد من التوضيح حول كيفية استخدام النتائج في مجالات أخرى مثل الهندسة والفيزياء.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذا البحث؟

    الهدف الرئيسي هو دراسة الاهتزازات النظامية لمجموعة من السوائل اللزجة الشعرية داخل أنبوب، سواء كان دواراً أو ثابتاً.

  2. ما هي الطرق المستخدمة في هذا البحث لدراسة طيف المسألة؟

    تم استخدام نظرية المؤثرات الذاتية المترافقة وطرق مثل الإسقاط العمودي والنظرية الطيفية لدراسة طيف المسألة.

  3. ما هي النتائج الرئيسية التي توصل إليها البحث؟

    النتائج الرئيسية تشير إلى أن طيف المسألة منقطع وأن العناصر الجذرية تشكل قاعدة آبل-ليدسكي في حالة الأنبوب الدوار، بينما يكون الطيف متناظراً بالنسبة للمحور الحقيقي في حالة الأنبوب الثابت.

  4. ما هي التطبيقات العملية المحتملة لهذه الدراسة؟

    التطبيقات العملية تشمل حل العديد من القضايا العلمية في الفيزياء والهندسة، مثل دراسة استقرار الحركات الصغيرة في الأنظمة الهيدروديناميكية.


References used
KOPACHEVSKY, N.D; KREIN, S.G; NGO ZUY CAN. Operators Methods in Linear Hydrodynamics:Evolution and Spectral Problems. Nauka, Moscow, 1989,159-181
KOPACHEVSKY,N.D; KREIN,S.G .Operator Approach in Linear Problems of Hydrodynamics Vol. 1: Self-ad joint Problems for Ideal Fluid, Birkh¨auserVerlag, Basel—Boston—Berlin, 2001,383
KOPACHEVSKY,N.D; KREIN,S.G. Operator Approach in Linear Problems of Hydrodynamics. Vol. 2: Nonself - adjoint Problems for Viscous Fluids, Birkh¨auser Verlag , Basel—Boston—Berlin, 2003, 444
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