The four different louver angles(15°, 20°,24°,28°) are numerically studied. it is obtained that the heat transfer performance is the best for the louver angle at 24°, and the pressure drop increases with the increase of the louver angle.
With the rapid development of computational fluid dynamics and combustion theory, applying the computer to numerically simulate the complicated processes in the plasma ignition is possible.
It is well known that Gabor expansions generated by a lattice of Nyquist density are numerically unstable, in the sense that they do not constitute frame decompositions.
Spherical harmonic series have many of the same wonderful properties as Fourier series, but have lacked one important thing: a numerically stable fast transform analogous to the Fast Fourier Transform (FFT).
Finally, we consider the spline of order 2; we investigate numerically the region of the time-frequency plane where it generates a frame and we compute the dual function for some values of the parameters.
Ⅰ. The Coal Classification Method for the Chinese Coals. (а) The Ultimate Analysis Graphical Coal Classification Method-Use the volatile Mateer on Combustible basis Vr as abscissa and the simplified coal characteristic coefficient as ordinate. (б) Proximate Analysis Graphical Coal Classification Method-Use the volatile matter on combustible basis VT as abscissa and the fixed carbon on ash free basis F. C.w Ⅱ. The Ranks (kinds) of the Chinese Coals-By using the two above mentioned graphi- ed coal class...
This paper introduces the theoretical basis of the numerical method of the thermodynamic calculations of the diesel engine, the fundamental differential equations for thermodynamic calculations derived from the above theoretical basis, and the conception of instantaneous air-fuel ratio and coefficient of pure residual exhaust gas. In the paper it is proved that the differential equations of instantaneous air-fuel ratio during the induction stroke can be integrated for perfect mixing, consequently, the numbe...