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العنوان
An investigation of the effect of transport phenomena on the problem of point explosion /
المؤلف
Khater, Hany Ahmed Safye El-Din.
هيئة الاعداد
باحث / هاني أحمد صفي الدين خاطر
مشرف / مصطفي م. كامل
مشرف / ناصف م. رأفت
الموضوع
Explosions. Transport theory. Gas dynamics. Heat - Conduction.
تاريخ النشر
1974.
عدد الصفحات
113 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الميكانيكية
تاريخ الإجازة
01/01/1974
مكان الإجازة
جامعة المنصورة - كلية الهندسة - Mechanichal Power Department
الفهرس
Only 14 pages are availabe for public view

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Abstract

Since the classical solution to blast waves fail near the axis of symmetry because transport effects heat been ignored, in this work the effects of thermal radiation, heat conduction and gas viscosity are taken into account. In addition the effects of specific heat ratio and Reynolds number have been considered for spherical, cylindrical and plane blast waves.
The equations of motion are formulated in their general one dimensional, non-steady form, then the self-similar problem is analysed and formulated. The flow field is assumed to consist of two regions, namely an outer region and an inner one with transport effects assumed to exist in both regions. In the outer region the pressure varies appreciably starting from the stron shock boundary condition till it reaches a constant non-zero value that fixes the beginning of the inner region in which a coordinate expansion of the flow field parameters, in terms of powers of the similarity variable, is assumed.
The expansions, when subatituted in the equations of motion, lead to the determination of the distribution of the flow field.
The present solution, while retaining the essential features present in previous solutions, it does not maintain the classical theory anomaly of having a zero density, or infinite temperature, at the origin of symmetry.
It also, as it retains the zero particle velocity at the origin, gives zero acceleration there, thus assuring zero velocity at the origin at all times.