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THE INSTABILITY ASSOCIATED WITH THE ONSET OF MOTION IN A THERMOSYPHON.

Author(s) : ZVIRIN Y.

Type of article: Article

Summary

A THEORETICAL METHOD IS PRESENTED FOR THE STUDY OF THE ONSET OF MOTION IN A SYMMETRICAL NATURAL CIRCULATION LOOP. A ONE-DIMENSIONAL MODEL IS APPLIED TO DESCRIBE THE BEHAVIOUR OF THE FLOW AND LINEAR STABILITY ANALYSIS IS USED FOR THE INVESTIGATION OF ITS STABILITY. THE RESULTS SHOW THAT THERE EXISTS A CRITICAL MODIFIED RAYLEIGH NUMBER BELOW WHICH THE REST STATE IS STABLE AND ANY FLOW PERTURBATION WILL DECAY. THE SAME RESULTS HAVE BEEN OBTAINED FROM A STEADY STATE ANALYSIS. FOR A VERTICAL LOOP COMPOSED OF TWO PARALLEL BRANCHES HEATED FROM BELOW AND COOLED FROM ABOVE, CRITICAL MODIFIED RAYLEIGH NUMBER = 6.

Details

  • Original title: THE INSTABILITY ASSOCIATED WITH THE ONSET OF MOTION IN A THERMOSYPHON.
  • Record ID : 1986-1405
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 28 - n. 11
  • Publication date: 1985

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