New self-oscillatory compressible flows are found and investigated. Self-oscillations are supposed to be produced as a result of resonance interactions of flow “active” elements, namely, elements, amplifying disturbances. Hypothesis is used that contact discontinuities and intersection points of shocks with shocks or shocks with contact discontinuities compose the flow set of “active” elements. Two-dimensional Reynolds-averaged Navier-Stocks equations added by an algebraic turbulence model are solved by an implicit third order Runge-Kutta scheme. Well studied open cavity flow and jet impinging on a plane are calculated to verify the numerical method and the turbulence model. Compressible flows near blunted bodies, giving off supersonic opposite jets from forehead surfaces, are discovered to have self-oscillatory regimes.
Published in | International Journal of Mechanical Engineering and Applications (Volume 2, Issue 1) |
DOI | 10.11648/j.ijmea.20140201.12 |
Page(s) | 5-10 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
Self-Oscillatory Flows, Reynolds-Averaged Navier-Stocks Equations, High Resolution Methods, Runge-Kutta Schemes
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APA Style
Bladimir Ivanovich Pinchukov. (2014). Numerical Simulations of Self-Oscillatory Flows near Blunted Bodies, Giving off Opposite Jets. International Journal of Mechanical Engineering and Applications, 2(1), 5-10. https://doi.org/10.11648/j.ijmea.20140201.12
ACS Style
Bladimir Ivanovich Pinchukov. Numerical Simulations of Self-Oscillatory Flows near Blunted Bodies, Giving off Opposite Jets. Int. J. Mech. Eng. Appl. 2014, 2(1), 5-10. doi: 10.11648/j.ijmea.20140201.12
AMA Style
Bladimir Ivanovich Pinchukov. Numerical Simulations of Self-Oscillatory Flows near Blunted Bodies, Giving off Opposite Jets. Int J Mech Eng Appl. 2014;2(1):5-10. doi: 10.11648/j.ijmea.20140201.12
@article{10.11648/j.ijmea.20140201.12, author = {Bladimir Ivanovich Pinchukov}, title = {Numerical Simulations of Self-Oscillatory Flows near Blunted Bodies, Giving off Opposite Jets}, journal = {International Journal of Mechanical Engineering and Applications}, volume = {2}, number = {1}, pages = {5-10}, doi = {10.11648/j.ijmea.20140201.12}, url = {https://doi.org/10.11648/j.ijmea.20140201.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20140201.12}, abstract = {New self-oscillatory compressible flows are found and investigated. Self-oscillations are supposed to be produced as a result of resonance interactions of flow “active” elements, namely, elements, amplifying disturbances. Hypothesis is used that contact discontinuities and intersection points of shocks with shocks or shocks with contact discontinuities compose the flow set of “active” elements. Two-dimensional Reynolds-averaged Navier-Stocks equations added by an algebraic turbulence model are solved by an implicit third order Runge-Kutta scheme. Well studied open cavity flow and jet impinging on a plane are calculated to verify the numerical method and the turbulence model. Compressible flows near blunted bodies, giving off supersonic opposite jets from forehead surfaces, are discovered to have self-oscillatory regimes.}, year = {2014} }
TY - JOUR T1 - Numerical Simulations of Self-Oscillatory Flows near Blunted Bodies, Giving off Opposite Jets AU - Bladimir Ivanovich Pinchukov Y1 - 2014/01/30 PY - 2014 N1 - https://doi.org/10.11648/j.ijmea.20140201.12 DO - 10.11648/j.ijmea.20140201.12 T2 - International Journal of Mechanical Engineering and Applications JF - International Journal of Mechanical Engineering and Applications JO - International Journal of Mechanical Engineering and Applications SP - 5 EP - 10 PB - Science Publishing Group SN - 2330-0248 UR - https://doi.org/10.11648/j.ijmea.20140201.12 AB - New self-oscillatory compressible flows are found and investigated. Self-oscillations are supposed to be produced as a result of resonance interactions of flow “active” elements, namely, elements, amplifying disturbances. Hypothesis is used that contact discontinuities and intersection points of shocks with shocks or shocks with contact discontinuities compose the flow set of “active” elements. Two-dimensional Reynolds-averaged Navier-Stocks equations added by an algebraic turbulence model are solved by an implicit third order Runge-Kutta scheme. Well studied open cavity flow and jet impinging on a plane are calculated to verify the numerical method and the turbulence model. Compressible flows near blunted bodies, giving off supersonic opposite jets from forehead surfaces, are discovered to have self-oscillatory regimes. VL - 2 IS - 1 ER -