بخشی از پاورپوینت
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اسلاید 1 :
Main Topics
قانون بقای جرم
تابع جریان برای جریان دو بعدی تراکم ناپذیر
سینماتیک
معادله مومنتوم
اسلاید 2 :
قانون بقای جرم:
Basic Law for a System
اسلاید 3 :
Conservation of Mass
Differential CV and Taylor series
اسلاید 4 :
Conservation of Mass
Rectangular Coordinate System
“Del” Operator
اسلاید 5 :
Rectangular Coordinate System
اسلاید 6 :
Conservation of Mass
Special Cases
Steady compressible flow
اسلاید 7 :
Conservation of Mass
Rectangular Coordinate System
Incompressible Fluid:
Steady Flow:
اسلاید 8 :
EXE :A two-dimensional converging duct is being designed for a high-speed wind tunnel. The bottom wall of the duct is to be flat and horizontal, and the top wall is to be curved in such a way that the axial wind speed u increases approximately linearly from u1 " 100 m/s at section (1) to u2 " 300 m/s at section (2) .Meanwhile, the air density ρ is to decrease approximately
linearly from ρ1 " 1.2 kg/m3 TO ρ2 " 0.85 .The converging duct is 2.0 m long and is 2.0 m high at section
(1). (a) Predict the y-component of velocity, v(x, y), in the duct. (b) Plot the
approximate shape of the duct, ignoring friction on the walls. (c) How high
should the duct be at section (2), the exit of the duct?
اسلاید 9 :
Conservation of Mass
Cylindrical Coordinate System
اسلاید 10 :
Cylindrical Coordinate System
