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NUMERICAL PREDICTION OF HORIZONTAL NONISOTHERMAL 3-D JET IN ROOM BASED ON THE KINETIC ENERGY OF TURBULENCE-TURBULENCE DISSIPATION RATE MODEL.

Author(s) : MURAKAMI S., KATO S., NAKAGAWA H.

Summary

THE ACCURACY AND RELIABILITY OF NUMERICAL SIMULATION OF THREE-DIMENSIONAL NONISOTHERMAL JETS IN ROOMS BASED ON A TURBULENCE MODEL ARE CLARIFIED BY COMPARING THE RESULTS OF SIMULATIONS WITH THOSE FROM EXPERIMENTS. THE MODEL USED HERE ALLOWS FOR THE EFFECTS OF THE ANISOTROPIC CHARACTERISTICS OF NON-ISOTHERMAL FLOW FIELDS ON THE MODEL EQUATIONS, PARTICULARLY ON THE TURBULENCE DISSIPATION RATE TRANSPORT EQUATION. TWO TYPES OF FLOW AND TEMPERATURE FIELDS WERE ANALYZED, BOTH BY SIMULATIONS AND BY EXPERIMENTS. THE NUMERICAL SIMULATIONS BASED ON THE TURBULENCE MODEL REPRODUCED BOTH TYPES OF FLOW AND TEMPERATURE FIELDS SUCCESSFULLY. EMPIRICAL EQUATIONS FOR ISOTHERMAL AND NONISOTHERMAL HORIZONTAL JETS ARE COMPARED WITH THE EXPERIMENTS AND WITH THE SIMULATION.

Details

  • Original title: NUMERICAL PREDICTION OF HORIZONTAL NONISOTHERMAL 3-D JET IN ROOM BASED ON THE KINETIC ENERGY OF TURBULENCE-TURBULENCE DISSIPATION RATE MODEL.
  • Record ID : 1992-1274
  • Languages: English
  • Publication date: 1991
  • Source: Source: ASHRAE Trans.
    vol. 97; n. 1; 38-48; 11 fig.; 3 tabl.; 18 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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