Dynamics of Upward Jets with Newtonian Cooling

Goncharov V. P.; Pavlov V. I.

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Dynamics of Upward Jets with Newtonian Cooling

机译：牛顿冷却向上喷气机的动态

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The Rayleigh-Taylor instability which is responsible for the occurrence of narrow upward jets is studied in the scope of the nonhydrostatic model with horizontally nonuniform density and the Newtonian cooling. As analysis shows, the total hierarchy of instabilities in this model consists of three regimes-collapse, algebraic instability, and inertial motion. Realization of these stages, mutual transitions, and interference depend on a ratio between two characteristic time scales-collapse time and cooling time.

机译：在具有水平不均匀的密度和牛顿冷却的非水压模型的范围内研究了负责发生窄向上喷射器的雷利泰勒不稳定性。如分析所示，该模型中的稳定性的总层次组成包括三个制度崩溃，代数不稳定和惯性运动。实现这些阶段，相互转变和干扰取决于两个特征时间缩放时间和冷却时间之间的比率。

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《Journal of Experimental and Theoretical Physics》 |2018年第2期|共8页
作者
Goncharov V. P.; Pavlov V. I.;
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Russian Acad Sci Obukhov Inst Atmospher Phys Moscow 109017 Russia;

Univ Lille UFR Math Pures &

Appl CNRS LML FRE 3723 F-59000 Lille France;

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正文语种 eng
中图分类理论物理学;
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1. Dynamics of Upward Jets with Newtonian Cooling [J] . Goncharov V. P., Pavlov V. I. Journal of Experimental and Theoretical Physics . 2018,第2期

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3. A novel strategy to enhance the cooling effectiveness in a confined porous jet impingement using non-Newtonian fluids [J] . Piyush Pratap Singh, Mohit Trivedi, Tarak Mondal, International Communications in Heat and Mass Transfer . 2021,第Jula期

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4. Computational Fluid Dynamic Analysis of Mixing Characteristics inside a Jet Mixer for Newtonian and Non Newtonian Fluids [C] . K. Sendilkumar, P. Kalaichelvi, M. Perumalsamy, World Congress on Engineering and Computer Science . 2007

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7. A study of upward oil jet impingement on flat and concave heated surfaces and the application to IC engine piston cooling [O] . Ting Yew Siang 2007

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8. COOLING OF NEWTONIAN AND NON-NEWTONIAN FLUIDS WITH TEMPERATURE-DEPENDENT VISCOSITY [R] . G. F. Cochrane 1972

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Dynamics of Upward Jets with Newtonian Cooling

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