The varying effect of natural convection on shear stress rate on cylindrical surfaces

Sillanpaa S; Heinonen M

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The varying effect of natural convection on shear stress rate on cylindrical surfaces

机译：自然对流对圆柱表面剪切应力率的变化影响

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In a dynamic weighing gas mass flow measurement, the gas mass flow rate is continuously determined by weighing a gas mass loss from a gas cylinder as a function of time. In this measurement method, the temperature difference between the wall of the gas cylinder and ambient air cannot be avoided. Due to natural convection flow, a shear stress appears on the wall of the cylinder. Because of the dynamic nature of the method, the shear stress rate varies as a function of time during the measurement period. In this paper, the magnitude and effect of the variable shear stress was studied theoretically and experimentally. Obtained results showed good agreement between the theory and experiments. (c) 2007 Elsevier Inc. All rights reserved.

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《Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics》 |2007年第2期|共8页
作者
Sillanpaa S; Heinonen M;
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正文语种 eng
中图分类流体力学;
关键词
natural convection; shear stress; dynamic weighing; DYNAMIC-GRAVIMETRIC PREPARATION; CALIBRATION GAS-MIXTURES; FLOW STANDARDS; APPARENT MASS; BNM-LNE; METAS;

机译：自然对流;剪切应力;动态称重;动态重力制备;标定气体混合物;流量标准;相关质量;BNM-LNE;METAS;

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1. The varying effect of natural convection on shear stress rate on cylindrical surfaces [J] . Sillanpaa S, Heinonen M Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics . 2007,第2期

机译：自然对流对圆柱表面剪切应力率的变化影响
2. The impact of the surface macro-roughness on the surface shear stress and rate under the oblique linear cylindrical nozzle jet as pertinent to particles detachment [J] . Eisner Alfred D. Journal of Aerosol Science . 2016,第Null期

机译：斜线形圆柱状喷嘴射流下表面宏观粗糙度对表面剪切应力和速率的影响与颗粒分离有关
3. Steady natural convection in a tilted long cylindrical envelope with lateral adiabatic surface, part 2: Heat transfer rate, flow patterns and temperature distributions [J] . He YL., Tao WQ., Zhao TS., Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology . 2003,第4期

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4. Thermoregulation of electronics inside diode enclosures. Viscous shear stress in 2D natural convection generated by isothermal active walls [C] . A. BAIRI, E. ZARCO-PERNIA, I. BAIRI, Recent researches in communications, electrical amp; computer engineering . 2011

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5. A numerical study of natural convection in a vertical cylindrical enclosure filled with a fluid-saturated porous medium using a three-dimensional model. [D] . Murray, Daniel. 2009

机译：使用三维模型对充满流体饱和多孔介质的垂直圆柱外壳中自然对流进行数值研究。
6. Natural Convection from the Outside Surface of anInclined Cylinder in Pure Liquids at Low Flux [O] . Amir Akbari, *, Erfan Mohammadian, 2019

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7. STEADY NATURAL CONVECTION IN A TILTED LONG CYLINDRICAL ENVELOPE WITH LATERAL ADIABATIC SURFACE, PART 2: HEAT TRANSFER RATE, FLOW PATTERNS AND TEMPERATURE DISTRIBUTIONS [O] . Y. L. He, W. Q. Tao, T. S. Zhao, 2002

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8. Effects of Surface Roughness of Horizontal Cylinders on Heat Transfer to Air under Conditions of Natural Convection [R] . Prasolov, R. S. 1961

机译：自然对流条件下水平圆柱表面粗糙度对空气传热的影响

The varying effect of natural convection on shear stress rate on cylindrical surfaces

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