1)drag coefficient风阻系数 1.This paper discusses the application of the CFD method in our automobile in exterior flowfield,simulates the model of the experiment of wind tunnel,calculates the drag coefficient and lift coefficient,and introduces how we modify the empennage and get a good result.该...
Drag coefficientEuropean ArcticNorth AtlanticParameterizationsInteractions between the atmosphere and the ocean determine boundary conditions for physical and biogeochemical processes in adjacent boundary layers, and the ocean surface is a complex interface where all air-sea fluxes take place and is a ...
A formula for the fluid-solids drag coefficient for a multiparticle system is derived from a Richardson-Zaki type velocity-voidage correlation. The formula compares favorably with the Ergun equation in the void fraction range of 0.5-0.6 and correctly reduces to a formula for the single-particle dr...
For a flat plate and an incompressible laminar flow, the boundary layer equations provide the following relationship between the localReynolds numberat the distance x from the leading edge and the friction drag coefficient there cf,lam(in the formula below, ν denotes the kinematic viscosity of the...
1) drag coefficient 风阻系数1. This paper discusses the application of the CFD method in our automobile in exterior flowfield,simulates the model of the experiment of wind tunnel,calculates the drag coefficient and lift coefficient,and introduces how we modify the empennage and get a good result...
英文: The correlation formula between drag coefficient CD and Renoed number Re is derrived by dimensional analysis meltod. The drag term PD in Morison equation is proved as well. 中文: 以量纲分析法得出曳力系数与雷诺数的关系式CD=K(Re)(-8),及莫里森方程中曳力项公式PD=■CDρAu;更详细......
13.Gives a calculation formula of the absolute error of specific frictional head losses.给出了湍流区沿程阻力系数绝对误差的计算式。 14.The Research of New Methods to Compute Coefficient of Mine Roadway's Frictional Resistance;确定矿井巷道摩擦阻力系数的新方法研究 ...
Sign up with one click: Facebook Twitter Google Share on Facebook Fresnel drag coefficient [frā′nel ′drag ‚kō·i‚fish·ənt] (optics) The quantity 1 - (1/n2), wherenis the index of diffraction of a transparent medium, believed by Fresnel to be the ratio of the velocity with...
where: D is the diameter of column; CD is the coefficient of drag force; wx is horizontal component of the velocity of the fluid particle; x˙ is the velocity of floating structure. The determination method of drag force coefficient (Masciola, 2011) is:(A-27)CD...
Drag coefficient (Cd) is an essential metric in the calculation of momentum exchange over the air-sea interface and thus has large impacts on the simulation or forecast of the upper ocean state associated with sea surface winds such as storm surges. Generally,Cdis a function of wind speed. ...