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TURBULENT HEAT TRANSFER IN CORRUGATED-WALL CHANNELS WITH AND WITHOUT FINS.

Author(s) : AMANO R. S.

Type of article: Article

Summary

A NUMERICAL STUDY IS PERFORMED EXAMINING FLOW AND HEAT TRANSFER CHARACTERISTICS IN A CHANNEL WITH PERIODICALLY CORRUGATED WALLS. BECAUSE OF THE STRONG NONISOTROPIC NATURE OF THE TURBULENT FLOW, THE FULL REYNOLDS-STRESS MODEL WAS EMPLOYED FOR THE EVALUATION OF TURBULENCE QUANTITIES. THE RESULTS COMPUTED BY USING THE PRESENT MODEL SHOW EXCELLENT AGREEMENT WITH EXPERIMENTAL DATA FOR MEAN VELOCITIES, THEREYNOLDS STRESSES, AND AVERAGE NUSSELT NUMBERS. THE STUDY WAS FURTHER EXTENDED TO A CHANNEL FLOW WHERE FINS ARE INSERTED AT BENDS IN THE CHANNEL. THE INSERTION OF FINS HAS A VISIBLE EFFECT ON FLOW PATTERNS AND SKIN FRICTION ALONG THE CHANNEL WALL.

Details

  • Original title: TURBULENT HEAT TRANSFER IN CORRUGATED-WALL CHANNELS WITH AND WITHOUT FINS.
  • Record ID : 1987-2138
  • Languages: English
  • Source: J. Heat Transf. - vol. 109 - n. 1
  • Publication date: 1987/02
  • Document available for consultation in the library of the IIR headquarters only.

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