Chaotic study of film boiling in superfluid helium

✍ Scribed by P. Zhang; Y.H. Wu; M. Murakami; R.Z. Wang

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 570 KB
• Volume: 41
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/s0011-2275(01)00059-5

✦ Synopsis

There are two basic ®lm boiling modes: noisy ®lm boiling and silent ®lm boiling, and also a transition boiling in He II. Pressure oscillations during boiling show that there are sharp dierences among them. Chaotic analysis method is introduced into the analysis of ®lm boiling. Fast Fourier Transformation (FFT) results reveal that ®lm boiling has highly non-linear characteristics. Time series analysis, power density spectrum and state-space can reveal a dynamic aspect of ®lm boiling of He II in time domain and frequency domain. And further more, Lyapunov exponent provides a convenient way to get a whole dynamic trend of ®lm boiling in He II.