Calculation of the influence of friction resistance face plate attenuation plane jet
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Keywords:
plane jet, jet flow pattern, turbulence, boundary layer, the jet velocityAbstract
In the study of the jet plane the experimental devices, as a rule, to eliminate the influence of the height of the limb of a rectangular nozzle flow field end plate limited. Sets the plates parallel to the direction of flow, as an extension of the outlet section of a rectangular nozzle end walls. The paper shows the results of the calculation of the effect of mechanical friction plates on the laws of development of the jet plane free. Built jet flow pattern bet ween the end surfaces. Spend resistancecalculation in the turbulent boundary layer. Calculating formula is obtained which describes the maximum change in velocity of the jet in the first approximation. Comparison of the calculation results with the experimental data.
References
1 Abramovich G.N., Girshovich T.A, Krasheninnikov S.I., Sekundov A.N., Smirnova I.P. The Theory of Turbulent Jets.– The MIT Press: Cambridge, Massachusetts, 1984. 684 p.
2 Faghani E., Maddahian R., Faghani P., and Farhanien B. Numerical investigation of turbulent free jet flows issuing from rectangular nozzles: the influence of small aspect ratio //Achiv. Appl. Mech. – 2010. – Vol. 80, No. 7. –Р.727-745.
3 Isataev S., Toleuov G., Isataev M., Ospanova Sh. And Bolysbekova Sh. Impact of frictional resistance of end plates on feat jet attenuation // Journal of engineering and applied Sciences. – 2015. – Vol.10. – P.76-79.
4 Lhendup Namgyal and Joseph W. Hall. Coherent streamwise vortex structures in the near-field of the three-dimensional wall jet // J. Fluid. Eng. – 2013.– Vol. 135, No. 6. – Р.120–126.
2 Faghani E., Maddahian R., Faghani P., and Farhanien B. Numerical investigation of turbulent free jet flows issuing from rectangular nozzles: the influence of small aspect ratio //Achiv. Appl. Mech. – 2010. – Vol. 80, No. 7. –Р.727-745.
3 Isataev S., Toleuov G., Isataev M., Ospanova Sh. And Bolysbekova Sh. Impact of frictional resistance of end plates on feat jet attenuation // Journal of engineering and applied Sciences. – 2015. – Vol.10. – P.76-79.
4 Lhendup Namgyal and Joseph W. Hall. Coherent streamwise vortex structures in the near-field of the three-dimensional wall jet // J. Fluid. Eng. – 2013.– Vol. 135, No. 6. – Р.120–126.
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How to Cite
Толеуов, Г., Исатаев, М., & Оспaновa Ш. (2016). Calculation of the influence of friction resistance face plate attenuation plane jet. Recent Contributions to Physics (Rec.Contr.Phys.), 58(3), 42–49. Retrieved from https://bph.kaznu.kz/index.php/zhuzhu/article/view/473
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Thermal Physics and Theoretical Thermal Engineering
