4) specific frictional resistance 比摩阻 1. Based on optimal theory,apply dynamic analysis to study the optimal values of economic specific frictional resistance,and put forward a sound theory formula. 以最优化理论为基础,应用动态分析法,对热水供热管网经济比摩阻问题进行探讨,提出了合理的理论公式。 2...
One may not think of friction as a force, but it is a very real and effective force always acting opposite to wind direction. As frictional force slows the wind speed, Coriolis force decreases. However, friction does not affect pressure gradient force. Pressure gradient and Coriolis forces are...
Among all the enhancement techniques, study on the heat transfer and buoyancy effect of SF in HCTs has attracted great attentions because it has the unique advantages of compact construction and low frictional resistance and it has been widely used in nuclear engineering [220], chemical engineering...
The components 𝜏𝑏𝑥τbx and 𝜏𝑏𝑦τby of the bottom friction force represent the frictional shear stress in the x and y directions, respectively [46]. 𝜏𝑏𝑥=𝜌𝐸𝑟𝑈𝑈2+𝑉2−−−−−−−√,𝜏𝑏𝑦=𝜌𝐸𝑟𝑉𝑈2+𝑉2−−−−...